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<url>
<loc>https://www.teachengineering.org/lessons/cub_simple_lesson05</loc>
<lastmod>2026-09-01T02:20:25.114Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_brid_lesson02</loc>
<lastmod>2026-09-01T02:20:23.142Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_rock_lesson04</loc>
<lastmod>2026-09-01T02:20:22.033Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mix_lesson2</loc>
<lastmod>2026-09-01T02:20:17.395Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_human_lesson07</loc>
<lastmod>2026-09-01T02:20:16.336Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_natdis_lesson04</loc>
<lastmod>2026-09-01T02:20:15.287Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_footprint_lesson1</loc>
<lastmod>2026-09-01T02:20:14.391Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_simple_lesson01</loc>
<lastmod>2026-09-01T02:20:13.331Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mix_lesson1</loc>
<lastmod>2026-09-01T02:20:12.235Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_weather_lesson06</loc>
<lastmod>2026-09-01T02:20:07.635Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_human_lesson04</loc>
<lastmod>2026-09-01T02:19:59.211Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_earth_lesson1</loc>
<lastmod>2026-09-01T02:19:46.553Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_dams_lesson01</loc>
<lastmod>2026-09-01T02:19:42.874Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_human_lesson02</loc>
<lastmod>2026-09-01T02:19:41.809Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mix_lesson3</loc>
<lastmod>2026-09-01T02:19:40.670Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_simp_machines_lesson01</loc>
<lastmod>2026-09-01T02:19:39.456Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_sensorswork_lesson03</loc>
<lastmod>2026-09-01T02:19:27.544Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_biomimicry_less1</loc>
<lastmod>2026-09-01T02:19:26.546Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_oddsofcancer_lesson01</loc>
<lastmod>2026-09-01T02:19:25.696Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_robotic_vision_less3</loc>
<lastmod>2026-09-01T02:19:24.485Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/clem_waves_lesson04</loc>
<lastmod>2026-09-01T02:19:23.634Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson05</loc>
<lastmod>2026-09-01T02:19:22.544Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_solar_lesson04</loc>
<lastmod>2026-09-01T02:19:21.230Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/ucd_newton_lesson03</loc>
<lastmod>2026-09-01T02:19:18.880Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson09</loc>
<lastmod>2026-09-01T02:19:17.697Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_electricity_lesson05</loc>
<lastmod>2026-09-01T02:19:16.388Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/clem_waves_lesson02</loc>
<lastmod>2026-09-01T02:19:15.301Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy2_lesson01</loc>
<lastmod>2026-09-01T02:19:14.350Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_bycatchunit_musc_less</loc>
<lastmod>2026-09-01T02:19:13.525Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_intro_lesson03</loc>
<lastmod>2026-09-01T02:19:12.439Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/wpi_lesson_1</loc>
<lastmod>2026-09-01T02:19:11.436Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mars_lesson02</loc>
<lastmod>2026-09-01T02:19:10.236Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cla_lesson6_efficiency</loc>
<lastmod>2026-09-01T02:19:08.900Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cla_lesson3_energy_basics</loc>
<lastmod>2026-09-01T02:19:07.620Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cla_lesson4_forms_states_conversions</loc>
<lastmod>2026-09-01T02:19:06.355Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cla_lesson5_energy_sources_systems</loc>
<lastmod>2026-09-01T02:19:04.941Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cla_lesson1_energyproblem</loc>
<lastmod>2026-09-01T02:19:03.724Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cla_lesson2_problem_solving</loc>
<lastmod>2026-09-01T02:19:02.274Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_solar_lesson03</loc>
<lastmod>2026-09-01T02:19:01.066Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_solar_lesson07</loc>
<lastmod>2026-09-01T02:18:59.499Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_solar_lesson06</loc>
<lastmod>2026-09-01T02:18:58.329Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy_lesson03</loc>
<lastmod>2026-09-01T02:18:57.221Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_dig_mapping_less3</loc>
<lastmod>2026-09-01T02:18:55.879Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_boxes_mary_less</loc>
<lastmod>2026-09-01T02:18:53.597Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_natdis_lesson05</loc>
<lastmod>2026-09-01T02:18:52.408Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_rock_lesson02</loc>
<lastmod>2026-09-01T02:18:51.065Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/wst_environmental_lesson01</loc>
<lastmod>2026-09-01T02:18:49.948Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_hp_lesson_force</loc>
<lastmod>2026-09-01T02:18:48.901Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_antimatter_lesson</loc>
<lastmod>2026-09-01T02:18:48.034Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_nano_lesson01</loc>
<lastmod>2026-09-01T02:18:45.827Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_rocket_lesson01</loc>
<lastmod>2026-09-01T02:18:43.963Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_ourbodies_lesson02</loc>
<lastmod>2026-09-01T02:18:42.704Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_consenergy_rde_less</loc>
<lastmod>2026-09-01T02:18:39.262Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_robotsandhumans_less2</loc>
<lastmod>2026-09-01T02:18:38.037Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/usf_surfactants_les1</loc>
<lastmod>2026-09-01T02:18:37.147Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_housing_lesson01</loc>
<lastmod>2026-09-01T02:18:35.749Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson09</loc>
<lastmod>2026-09-01T02:18:34.352Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson04</loc>
<lastmod>2026-09-01T02:18:33.295Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_earth_lesson5</loc>
<lastmod>2026-09-01T02:18:31.065Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson06</loc>
<lastmod>2026-09-01T02:18:29.851Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_robotsandhumans_less4</loc>
<lastmod>2026-09-01T02:18:28.505Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_weather_lesson05</loc>
<lastmod>2026-09-01T02:18:26.559Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_weather_lesson01</loc>
<lastmod>2026-09-01T02:18:25.418Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_genetics_mary_less</loc>
<lastmod>2026-09-01T02:18:23.521Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_troll_lesson02</loc>
<lastmod>2026-09-01T02:18:22.400Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson02</loc>
<lastmod>2026-09-01T02:18:21.130Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_biomimicry_less4</loc>
<lastmod>2026-09-01T02:18:19.208Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_surfacetensionunit_less4</loc>
<lastmod>2026-09-01T02:18:17.912Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_hp_lesson_square</loc>
<lastmod>2026-09-01T02:18:16.056Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_catapult_lesson01</loc>
<lastmod>2026-09-01T02:18:15.329Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_hybrid_design_less2</loc>
<lastmod>2026-09-01T02:18:14.137Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson01</loc>
<lastmod>2026-09-01T02:18:12.834Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_tower_tech_less</loc>
<lastmod>2026-09-01T02:18:11.504Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_natdis_lesson07</loc>
<lastmod>2026-09-01T02:18:10.225Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_seismicw_lesson01</loc>
<lastmod>2026-09-01T02:18:09.298Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_magic_lesson01</loc>
<lastmod>2026-09-01T02:18:08.410Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_solaroven_tech_less</loc>
<lastmod>2026-09-01T02:18:07.392Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_crystals_lesson01</loc>
<lastmod>2026-09-01T02:18:06.502Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson07</loc>
<lastmod>2026-09-01T02:18:04.601Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_weather_lesson04</loc>
<lastmod>2026-09-01T02:18:03.333Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_enveng_lesson06</loc>
<lastmod>2026-09-01T02:18:02.160Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_brid_lesson01</loc>
<lastmod>2026-09-01T02:18:00.949Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_biomed_lesson07</loc>
<lastmod>2026-09-01T02:17:59.646Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_carbon_lesson01</loc>
<lastmod>2026-09-01T02:17:58.656Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson05</loc>
<lastmod>2026-09-01T02:17:57.257Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson09</loc>
<lastmod>2026-09-01T02:17:56.186Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_genetic_lesson01</loc>
<lastmod>2026-09-01T02:17:55.157Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_heattransfer_smary_less</loc>
<lastmod>2026-09-01T02:17:54.240Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/ucd_electricity_lesson01</loc>
<lastmod>2026-09-01T02:17:53.283Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_housing_lesson05</loc>
<lastmod>2026-09-01T02:17:52.210Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_surfacetensionunit_less3</loc>
<lastmod>2026-09-01T02:17:50.927Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_intro_lesson01</loc>
<lastmod>2026-09-01T02:17:49.567Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy_lesson01</loc>
<lastmod>2026-09-01T02:17:48.200Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_robotic_vision_less1</loc>
<lastmod>2026-09-01T02:17:46.969Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_enveng_lesson05</loc>
<lastmod>2026-09-01T02:17:45.622Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_detdrawings_lesson01</loc>
<lastmod>2026-09-01T02:17:44.542Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson10</loc>
<lastmod>2026-09-01T02:17:43.490Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_lesson1_crashscene_tg</loc>
<lastmod>2026-09-01T02:17:42.229Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/wpi_bones_lesson01</loc>
<lastmod>2026-09-01T02:17:41.303Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_lifescience_lesson03</loc>
<lastmod>2026-09-01T02:17:40.215Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson03</loc>
<lastmod>2026-09-01T02:17:39.179Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson09</loc>
<lastmod>2026-09-01T02:17:38.038Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_human_lesson06</loc>
<lastmod>2026-09-01T02:17:36.702Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_earth_lesson6</loc>
<lastmod>2026-09-01T02:17:35.536Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_brid_lesson03</loc>
<lastmod>2026-09-01T02:17:34.515Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_intro_lesson04</loc>
<lastmod>2026-09-01T02:17:33.494Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/ucd_newton_lesson02</loc>
<lastmod>2026-09-01T02:17:32.548Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson03</loc>
<lastmod>2026-09-01T02:17:31.253Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/ucla_lava_lesson01</loc>
<lastmod>2026-09-01T02:17:28.988Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_natdis_lesson08</loc>
<lastmod>2026-09-01T02:17:27.898Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_art_lesson01</loc>
<lastmod>2026-09-01T02:17:26.961Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_soundandlight_lesson7</loc>
<lastmod>2026-09-01T02:17:25.732Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_lifescience_lesson04</loc>
<lastmod>2026-09-01T02:17:24.488Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_cleanupmess_less4</loc>
<lastmod>2026-09-01T02:17:23.341Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_lifescience_lesson02</loc>
<lastmod>2026-09-01T02:17:22.244Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_solarenergy_lesson01</loc>
<lastmod>2026-09-01T02:17:21.211Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_enveng_lesson02</loc>
<lastmod>2026-09-01T02:17:20.148Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_matlsci_lesson01</loc>
<lastmod>2026-09-01T02:17:19.153Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_convshoes_lesson01</loc>
<lastmod>2026-09-01T02:17:18.268Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/ucd_energy_lesson01</loc>
<lastmod>2026-09-01T02:17:17.139Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_linear_eqn_less4</loc>
<lastmod>2026-09-01T02:17:15.937Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy2_lesson06</loc>
<lastmod>2026-09-01T02:17:14.828Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_bio_lesson06</loc>
<lastmod>2026-09-01T02:17:13.657Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy2_lesson02</loc>
<lastmod>2026-09-01T02:17:12.417Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_space8_lesson01</loc>
<lastmod>2026-09-01T02:17:11.123Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy2_lesson04</loc>
<lastmod>2026-09-01T02:17:08.861Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_friction_smary_less2</loc>
<lastmod>2026-09-01T02:17:07.340Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_china_lesson02</loc>
<lastmod>2026-09-01T02:17:06.186Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_rock_lesson03</loc>
<lastmod>2026-09-01T02:17:05.105Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_robotsandhumans_less1</loc>
<lastmod>2026-09-01T02:17:04.062Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy2_lesson03</loc>
<lastmod>2026-09-01T02:17:03.187Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_bio_lesson04</loc>
<lastmod>2026-09-01T02:17:02.163Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_lunar_muscle_less</loc>
<lastmod>2026-09-01T02:17:01.228Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_natdis_lesson06</loc>
<lastmod>2026-09-01T02:17:00.225Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_navigation_lesson04</loc>
<lastmod>2026-09-01T02:16:59.131Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_nano_lesson02</loc>
<lastmod>2026-09-01T02:16:57.786Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_biomed_lesson02</loc>
<lastmod>2026-09-01T02:16:56.506Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_density_mary_less</loc>
<lastmod>2026-09-01T02:16:55.428Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_electricity_lesson01</loc>
<lastmod>2026-09-01T02:16:54.368Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_biomed_lesson04</loc>
<lastmod>2026-09-01T02:16:53.260Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_sep_mixtures_less1</loc>
<lastmod>2026-09-01T02:16:52.375Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_ourbodies_lesson01</loc>
<lastmod>2026-09-01T02:16:51.150Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_energymusic_mem_less</loc>
<lastmod>2026-09-01T02:16:50.337Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_marine_musc_less2</loc>
<lastmod>2026-09-01T02:16:49.256Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/pur_fluidpower_less1</loc>
<lastmod>2026-09-01T02:16:48.392Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/clem_waves_lesson05</loc>
<lastmod>2026-09-01T02:16:47.388Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_rock_lesson05</loc>
<lastmod>2026-09-01T02:16:46.205Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mars_lesson05</loc>
<lastmod>2026-09-01T02:16:44.898Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_brid_lesson05</loc>
<lastmod>2026-09-01T02:16:43.854Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_challenges_lesson02</loc>
<lastmod>2026-09-01T02:16:42.739Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_surgicaldevices_tech_less</loc>
<lastmod>2026-09-01T02:16:41.594Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_bio_lesson01</loc>
<lastmod>2026-09-01T02:16:40.612Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mars_lesson01</loc>
<lastmod>2026-09-01T02:16:38.713Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson08</loc>
<lastmod>2026-09-01T02:16:37.555Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_solarcar_tech_less</loc>
<lastmod>2026-09-01T02:16:36.576Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mars_lesson03</loc>
<lastmod>2026-09-01T02:16:35.388Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_desal_lesson01</loc>
<lastmod>2026-09-01T02:16:34.279Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_space8_lesson03</loc>
<lastmod>2026-09-01T02:16:33.100Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson03</loc>
<lastmod>2026-09-01T02:16:32.039Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_bernoulli_lesson01</loc>
<lastmod>2026-09-01T02:16:31.078Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/usf_stormwater_lesson02</loc>
<lastmod>2026-09-01T02:16:29.987Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_8</loc>
<lastmod>2026-09-01T02:16:28.500Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_10</loc>
<lastmod>2026-09-01T02:16:27.356Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_9</loc>
<lastmod>2026-09-01T02:16:26.386Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_simp_machines_lesson02</loc>
<lastmod>2026-09-01T02:16:25.528Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mars_lesson04</loc>
<lastmod>2026-09-01T02:16:24.447Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mars_lesson06</loc>
<lastmod>2026-09-01T02:16:23.143Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson07</loc>
<lastmod>2026-09-01T02:16:21.928Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_virus_mary_less</loc>
<lastmod>2026-09-01T02:16:20.999Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_decomposers_mary_less</loc>
<lastmod>2026-09-01T02:16:20.031Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_computerprogram_lesson02</loc>
<lastmod>2026-09-01T02:16:18.810Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_computerprogram_lesson01</loc>
<lastmod>2026-09-01T02:16:17.682Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_computerprogram_lesson03</loc>
<lastmod>2026-09-01T02:16:16.389Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_junit_lesson01</loc>
<lastmod>2026-09-01T02:16:15.515Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_marine_musc_less</loc>
<lastmod>2026-09-01T02:16:14.538Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_heartvalve_tech_less</loc>
<lastmod>2026-09-01T02:16:12.831Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/mis_pharma_lesson01</loc>
<lastmod>2026-09-01T02:16:11.988Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_bubble_mary_less</loc>
<lastmod>2026-09-01T02:16:11.028Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_powergen_tech_less</loc>
<lastmod>2026-09-01T02:16:10.179Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/mis_biosensors_lesson01</loc>
<lastmod>2026-09-01T02:16:09.319Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_feelbetter_lesson01</loc>
<lastmod>2026-09-01T02:16:08.328Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_feelbetter_lesson02</loc>
<lastmod>2026-09-01T02:16:07.365Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_biomimicry_less2</loc>
<lastmod>2026-09-01T02:16:06.146Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_polymer_lesson01</loc>
<lastmod>2026-09-01T02:16:05.266Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_waterqtnew_lesson01</loc>
<lastmod>2026-09-01T02:16:04.298Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_simp_machines_lesson05</loc>
<lastmod>2026-09-01T02:16:03.286Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_pveff_lesson04</loc>
<lastmod>2026-09-01T02:16:02.245Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_enveng_lesson01</loc>
<lastmod>2026-09-01T02:16:01.235Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_housing_lesson03</loc>
<lastmod>2026-09-01T02:16:00.091Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/usf_flocculant_lesson01</loc>
<lastmod>2026-09-01T02:15:59.145Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_enveng_lesson07</loc>
<lastmod>2026-09-01T02:15:57.943Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_heartvalves_lesson02</loc>
<lastmod>2026-09-01T02:15:56.714Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_heartvalves_lesson01</loc>
<lastmod>2026-09-01T02:15:55.872Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_graphtheory_lesson01</loc>
<lastmod>2026-09-01T02:15:54.976Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_soundandlight_lesson8</loc>
<lastmod>2026-09-01T02:15:53.890Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_eenergy_mem_less</loc>
<lastmod>2026-09-01T02:15:53.091Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_biomimicry_less3</loc>
<lastmod>2026-09-01T02:15:52.117Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_dams_lesson07</loc>
<lastmod>2026-09-01T02:15:51.084Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_dams_lesson02</loc>
<lastmod>2026-09-01T02:15:50.041Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_rockets_lesson01</loc>
<lastmod>2026-09-01T02:15:49.032Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_3</loc>
<lastmod>2026-09-01T02:15:47.816Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_piezo_lesson01</loc>
<lastmod>2026-09-01T02:15:46.967Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_plainsight_lesson01</loc>
<lastmod>2026-09-01T02:15:46.109Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_fluidmechanics_lesson02</loc>
<lastmod>2026-09-01T02:15:45.163Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/jhu_cnetworks_lesson02</loc>
<lastmod>2026-09-01T02:15:44.004Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_robotic_vision_less2</loc>
<lastmod>2026-09-01T02:15:42.839Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_circuit_lesson01</loc>
<lastmod>2026-09-01T02:15:41.965Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_6</loc>
<lastmod>2026-09-01T02:15:40.760Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/jhu_cnetworks_lesson01</loc>
<lastmod>2026-09-01T02:15:39.808Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_2</loc>
<lastmod>2026-09-01T02:15:38.629Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_connection_lesson01</loc>
<lastmod>2026-09-01T02:15:37.761Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/torque_sue</loc>
<lastmod>2026-09-01T02:15:36.646Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_dna_lesson01</loc>
<lastmod>2026-09-01T02:15:35.733Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/tension</loc>
<lastmod>2026-09-01T02:15:34.667Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/usf_microbes_lesson01</loc>
<lastmod>2026-09-01T02:15:33.854Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_5</loc>
<lastmod>2026-09-01T02:15:32.645Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_4</loc>
<lastmod>2026-09-01T02:15:31.603Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_rooftop_lesson01</loc>
<lastmod>2026-09-01T02:15:30.844Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_enveng_lesson04</loc>
<lastmod>2026-09-01T02:15:29.600Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_dams_lesson08</loc>
<lastmod>2026-09-01T02:15:28.311Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_dna_lesson02</loc>
<lastmod>2026-09-01T02:15:27.350Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_heartvalves_lesson01</loc>
<lastmod>2026-09-01T02:15:26.336Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_7</loc>
<lastmod>2026-09-01T02:15:25.166Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/gat_visual_art_lesson01</loc>
<lastmod>2026-09-01T02:15:24.268Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_housing_lesson04</loc>
<lastmod>2026-09-01T02:15:22.037Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson05</loc>
<lastmod>2026-09-01T02:15:20.779Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_china_lesson01</loc>
<lastmod>2026-09-01T02:15:19.426Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_oddsofcancer_lesson02</loc>
<lastmod>2026-09-01T02:15:18.217Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_walk_lesson01</loc>
<lastmod>2026-09-01T02:15:17.300Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_linear_eqn_less2</loc>
<lastmod>2026-09-01T02:15:16.110Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_lighting_lesson01</loc>
<lastmod>2026-09-01T02:15:15.251Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_linear_eqn_less3</loc>
<lastmod>2026-09-01T02:15:12.934Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_weather_lesson03</loc>
<lastmod>2026-09-01T02:15:11.864Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_china_lesson03</loc>
<lastmod>2026-09-01T02:15:10.846Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_linear_eqn_less5</loc>
<lastmod>2026-09-01T02:15:09.529Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/mis_eyes_lesson01</loc>
<lastmod>2026-09-01T02:15:08.555Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_dig_mapping_less1</loc>
<lastmod>2026-09-01T02:15:07.646Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_dig_mapping_less2</loc>
<lastmod>2026-09-01T02:15:06.609Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/usf_biorecycling_lesson01</loc>
<lastmod>2026-09-01T02:15:05.664Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_weather_lesson02</loc>
<lastmod>2026-09-01T02:15:04.361Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_cells_lesson02</loc>
<lastmod>2026-09-01T02:15:03.409Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_accelerometer_lesson02</loc>
<lastmod>2026-09-01T02:15:02.260Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_cancer_lesson3</loc>
<lastmod>2026-09-01T02:15:00.902Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_landfill_music_less</loc>
<lastmod>2026-09-01T02:15:00.019Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_appinventor_lesson01</loc>
<lastmod>2026-09-01T02:14:59.001Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_oddsofcancer_lesson04</loc>
<lastmod>2026-09-01T02:14:57.798Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_troll_lesson01</loc>
<lastmod>2026-09-01T02:14:56.829Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_troll_lesson04</loc>
<lastmod>2026-09-01T02:14:55.626Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_python_lesson01</loc>
<lastmod>2026-09-01T02:14:54.621Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_lesson1_flow_rate_experiment</loc>
<lastmod>2026-09-01T02:14:53.801Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_bmd_less1</loc>
<lastmod>2026-09-01T02:14:52.699Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_membrane_lesson1</loc>
<lastmod>2026-09-01T02:14:51.711Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_oddsofcancer_lesson03</loc>
<lastmod>2026-09-01T02:14:49.480Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_perm_usman_less</loc>
<lastmod>2026-09-01T02:14:48.599Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_life_lesson01</loc>
<lastmod>2026-09-01T02:14:47.780Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_swing_lesson01</loc>
<lastmod>2026-09-01T02:14:46.954Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_hybrid_design_less4</loc>
<lastmod>2026-09-01T02:14:45.792Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_skeletal_system_less1</loc>
<lastmod>2026-09-01T02:14:44.812Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson02</loc>
<lastmod>2026-09-01T02:14:43.494Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_simp_machines_lesson04</loc>
<lastmod>2026-09-01T02:14:41.160Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_cancer_lesson2</loc>
<lastmod>2026-09-01T02:14:39.971Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_hybrid_design_less1</loc>
<lastmod>2026-09-01T02:14:39.070Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_handheld_lesson01</loc>
<lastmod>2026-09-01T02:14:38.340Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson03</loc>
<lastmod>2026-09-01T02:14:37.313Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_electricity_lesson04</loc>
<lastmod>2026-09-01T02:14:36.040Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_human_lesson10</loc>
<lastmod>2026-09-01T02:14:34.837Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_sensorswork_lesson05</loc>
<lastmod>2026-09-01T02:14:33.491Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_human_lesson09</loc>
<lastmod>2026-09-01T02:14:32.038Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_human_lesson08</loc>
<lastmod>2026-09-01T02:14:30.946Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_human_lesson05</loc>
<lastmod>2026-09-01T02:14:29.863Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_human_lesson03</loc>
<lastmod>2026-09-01T02:14:28.713Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/usf_maxwell_lesson01</loc>
<lastmod>2026-09-01T02:14:27.836Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_hp_lesson_acids</loc>
<lastmod>2026-09-01T02:14:26.664Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_soundandlight_lesson1</loc>
<lastmod>2026-09-01T02:14:25.622Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_earth_lesson2</loc>
<lastmod>2026-09-01T02:14:23.782Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_earth_lesson3</loc>
<lastmod>2026-09-01T02:14:22.570Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_navigation_lesson10</loc>
<lastmod>2026-09-01T02:14:21.338Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson04</loc>
<lastmod>2026-09-01T02:14:20.189Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy2_lesson09</loc>
<lastmod>2026-09-01T02:14:18.891Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mag_lesson2</loc>
<lastmod>2026-09-01T02:14:16.823Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_surg_lesson01</loc>
<lastmod>2026-09-01T02:14:15.652Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_faucets_lesson01</loc>
<lastmod>2026-09-01T02:14:14.772Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_sensorswork_lesson04</loc>
<lastmod>2026-09-01T02:14:13.505Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson07</loc>
<lastmod>2026-09-01T02:14:12.140Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_bio_lesson03</loc>
<lastmod>2026-09-01T02:14:10.983Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson08</loc>
<lastmod>2026-09-01T02:14:09.646Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_simp_machines_lesson03</loc>
<lastmod>2026-09-01T02:14:08.620Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_pirates_lesson01</loc>
<lastmod>2026-09-01T02:14:07.739Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson06</loc>
<lastmod>2026-09-01T02:14:06.587Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson01</loc>
<lastmod>2026-09-01T02:14:05.528Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_drink_lesson01</loc>
<lastmod>2026-09-01T02:14:04.521Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_dams_lesson04</loc>
<lastmod>2026-09-01T02:14:03.452Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_surfacetensionunit_less1</loc>
<lastmod>2026-09-01T02:14:02.502Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson04</loc>
<lastmod>2026-09-01T02:14:01.499Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_lesson2_supplies_tg</loc>
<lastmod>2026-09-01T02:14:00.706Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_navigation_lesson07</loc>
<lastmod>2026-09-01T02:13:59.787Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_space8_lesson02</loc>
<lastmod>2026-09-01T02:13:58.717Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_lesson3_shelter_tg</loc>
<lastmod>2026-09-01T02:13:57.758Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson10</loc>
<lastmod>2026-09-01T02:13:56.596Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/ucd_heat_lesson01</loc>
<lastmod>2026-09-01T02:13:55.680Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson08</loc>
<lastmod>2026-09-01T02:13:54.572Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_robots_less</loc>
<lastmod>2026-09-01T02:13:53.227Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_nanoparticles_lesson01</loc>
<lastmod>2026-09-01T02:13:52.102Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_soundandlight_lesson3</loc>
<lastmod>2026-09-01T02:13:50.731Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_soundandlight_lesson2</loc>
<lastmod>2026-09-01T02:13:49.562Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/usf_stormwater_lesson01</loc>
<lastmod>2026-09-01T02:13:48.520Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson02</loc>
<lastmod>2026-09-01T02:13:47.425Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_body_lesson01</loc>
<lastmod>2026-09-01T02:13:46.404Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_sun_lesson01</loc>
<lastmod>2026-09-01T02:13:45.537Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_lesson5_filterwater_tg</loc>
<lastmod>2026-09-01T02:13:44.589Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_earth_lesson04</loc>
<lastmod>2026-09-01T02:13:43.733Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_skeletal_system_less2</loc>
<lastmod>2026-09-01T02:13:42.386Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_sensorswork_lesson06</loc>
<lastmod>2026-09-01T02:13:41.019Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_navigation_lesson05</loc>
<lastmod>2026-09-01T02:13:39.673Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_cells_lesson01</loc>
<lastmod>2026-09-01T02:13:38.515Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson10</loc>
<lastmod>2026-09-01T02:13:37.516Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_latex_lesson01</loc>
<lastmod>2026-09-01T02:13:36.596Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_troll_lesson03</loc>
<lastmod>2026-09-01T02:13:35.562Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_motion_lesson1</loc>
<lastmod>2026-09-01T02:13:33.824Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_music_choi_less</loc>
<lastmod>2026-09-01T02:13:32.918Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_doyousee_lesson01</loc>
<lastmod>2026-09-01T02:13:31.996Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_lesson6_density_tg</loc>
<lastmod>2026-09-01T02:13:30.969Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_doesitwork_lesson01</loc>
<lastmod>2026-09-01T02:13:29.973Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_cleanupmess_less1</loc>
<lastmod>2026-09-01T02:13:28.978Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_nanoparticles_lesson02</loc>
<lastmod>2026-09-01T02:13:27.683Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_soundandlight_lesson5</loc>
<lastmod>2026-09-01T02:13:26.576Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_amradio_tech_less</loc>
<lastmod>2026-09-01T02:13:25.760Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_soundandlight_lesson4</loc>
<lastmod>2026-09-01T02:13:24.466Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_soundandlight_lesson6</loc>
<lastmod>2026-09-01T02:13:23.468Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_navigation_lesson08</loc>
<lastmod>2026-09-01T02:13:22.355Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_foodiron_music_less</loc>
<lastmod>2026-09-01T02:13:21.372Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mag_lesson1</loc>
<lastmod>2026-09-01T02:13:20.460Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/mis_neuron_lesson01</loc>
<lastmod>2026-09-01T02:13:19.618Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_navigation_lesson06</loc>
<lastmod>2026-09-01T02:13:18.391Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_gps_lesson01</loc>
<lastmod>2026-09-01T02:13:17.143Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/wst_environmental_lesson03</loc>
<lastmod>2026-09-01T02:13:16.027Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_bmd_less3</loc>
<lastmod>2026-09-01T02:13:14.776Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_sound_lesson01</loc>
<lastmod>2026-09-01T02:13:13.733Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_bmd_less4</loc>
<lastmod>2026-09-01T02:13:11.651Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_bmd_less2</loc>
<lastmod>2026-09-01T02:13:10.563Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_nanoparticles_lesson03</loc>
<lastmod>2026-09-01T02:13:09.454Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson04</loc>
<lastmod>2026-09-01T02:13:08.251Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_drops_mary_less</loc>
<lastmod>2026-09-01T02:13:07.028Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_sensorswork_lesson01</loc>
<lastmod>2026-09-01T02:13:05.793Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_sensorswork_lesson02</loc>
<lastmod>2026-09-01T02:13:04.519Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_latex_lesson02</loc>
<lastmod>2026-09-01T02:13:03.359Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_bio_lesson05</loc>
<lastmod>2026-09-01T02:13:02.326Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_sound_lesson03</loc>
<lastmod>2026-09-01T02:13:01.346Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_linear_eqn_less1</loc>
<lastmod>2026-09-01T02:13:00.408Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson08</loc>
<lastmod>2026-09-01T02:12:59.414Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson06</loc>
<lastmod>2026-09-01T02:12:58.214Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_floppy_lesson01</loc>
<lastmod>2026-09-01T02:12:57.037Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_hybrid_design_less3</loc>
<lastmod>2026-09-01T02:12:55.838Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/ucd_energy_lesson03</loc>
<lastmod>2026-09-01T02:12:54.609Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_surfacetensionunit_less2</loc>
<lastmod>2026-09-01T02:12:53.335Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy_lesson02</loc>
<lastmod>2026-09-01T02:12:52.173Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_lesson4_food_tg</loc>
<lastmod>2026-09-01T02:12:51.250Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_cleanupmess_less3</loc>
<lastmod>2026-09-01T02:12:50.072Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson07</loc>
<lastmod>2026-09-01T02:12:48.865Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_evolution_mary_less</loc>
<lastmod>2026-09-01T02:12:47.766Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_yeast_mary_less</loc>
<lastmod>2026-09-01T02:12:46.630Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_heat_lesson01</loc>
<lastmod>2026-09-01T02:12:45.690Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_biomed_lesson08</loc>
<lastmod>2026-09-01T02:12:43.636Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_balloons_lesson01</loc>
<lastmod>2026-09-01T02:12:42.732Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_cancer_lesson1</loc>
<lastmod>2026-09-01T02:12:41.703Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_1</loc>
<lastmod>2026-09-01T02:12:40.567Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_floppy_lesson02</loc>
<lastmod>2026-09-01T02:12:38.172Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_aerogel_lesson01</loc>
<lastmod>2026-09-01T02:12:37.176Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_ourbodies_lesson03</loc>
<lastmod>2026-09-01T02:12:36.154Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_rockets_lesson04</loc>
<lastmod>2026-09-01T02:12:34.879Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_navigation_lesson09</loc>
<lastmod>2026-09-01T02:12:33.572Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_cellresp_mary_less</loc>
<lastmod>2026-09-01T02:12:32.319Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_surg_lesson05</loc>
<lastmod>2026-09-01T02:12:30.951Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/usf_dome_lesson01</loc>
<lastmod>2026-09-01T02:12:29.753Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_sound_lesson02</loc>
<lastmod>2026-09-01T02:12:27.942Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_rivers_lesson01</loc>
<lastmod>2026-09-01T02:12:26.081Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_retcoulter_les1</loc>
<lastmod>2026-09-01T02:12:25.200Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uta_dense_lesson01</loc>
<lastmod>2026-09-01T02:12:24.335Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_filtering_lesson01</loc>
<lastmod>2026-09-01T02:12:23.434Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_cells_lesson03</loc>
<lastmod>2026-09-01T02:12:22.334Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_taste_mary_less</loc>
<lastmod>2026-09-01T02:12:21.429Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_dimension_tech_less</loc>
<lastmod>2026-09-01T02:12:20.502Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_flyingtshirt_lesson01</loc>
<lastmod>2026-09-01T02:12:18.664Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_lifescience_lesson01</loc>
<lastmod>2026-09-01T02:12:17.545Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson05</loc>
<lastmod>2026-09-01T02:12:16.236Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/clem_waves_lesson01</loc>
<lastmod>2026-09-01T02:12:14.058Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy_lesson04</loc>
<lastmod>2026-09-01T02:12:13.201Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy_lesson05</loc>
<lastmod>2026-09-01T02:12:11.868Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_biomed_lesson03</loc>
<lastmod>2026-09-01T02:12:10.673Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson10</loc>
<lastmod>2026-09-01T02:12:07.571Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson02</loc>
<lastmod>2026-09-01T02:12:06.433Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_foodpackage_music_less</loc>
<lastmod>2026-09-01T02:12:04.700Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csu_polymer_lesson01</loc>
<lastmod>2026-09-01T02:12:03.778Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_pveff_lesson03</loc>
<lastmod>2026-09-01T02:12:02.641Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_housing_lesson02</loc>
<lastmod>2026-09-01T02:12:01.420Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_biomed_lesson01</loc>
<lastmod>2026-09-01T02:12:00.322Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_friction_smary_less</loc>
<lastmod>2026-09-01T02:11:58.260Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_rockets_lesson02</loc>
<lastmod>2026-09-01T02:11:57.142Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy2_lesson05</loc>
<lastmod>2026-09-01T02:11:56.070Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy2_lesson08</loc>
<lastmod>2026-09-01T02:11:54.616Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_natdis_lesson03</loc>
<lastmod>2026-09-01T02:11:53.425Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_hockey_music_less</loc>
<lastmod>2026-09-01T02:11:52.254Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_photo_mary_less</loc>
<lastmod>2026-09-01T02:11:50.232Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_liftoff_lesson01</loc>
<lastmod>2026-09-01T02:11:49.350Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_earth_lesson07</loc>
<lastmod>2026-09-01T02:11:48.334Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_trusses_lesson01</loc>
<lastmod>2026-09-01T02:11:47.203Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_intro_lesson02</loc>
<lastmod>2026-09-01T02:11:45.977Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_cleanupmess_less2</loc>
<lastmod>2026-09-01T02:11:44.815Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/ucd_energy_lesson02</loc>
<lastmod>2026-09-01T02:11:43.626Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_lesson7_reporting_tg</loc>
<lastmod>2026-09-01T02:11:41.673Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/clem_waves_lesson03</loc>
<lastmod>2026-09-01T02:11:40.876Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_earth_lesson08</loc>
<lastmod>2026-09-01T02:11:39.991Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_solar_lesson02</loc>
<lastmod>2026-09-01T02:11:38.821Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_fracture_lesson01</loc>
<lastmod>2026-09-01T02:11:36.857Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_biomed_lesson10</loc>
<lastmod>2026-09-01T02:11:35.386Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub-3079-electromagnets-electricity-magnetic-field-activity</loc>
<lastmod>2026-08-28T19:46:14.856Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub-3078-magnets-magnetic-fields-activity</loc>
<lastmod>2026-09-01T15:28:16.807Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno-3063-caesar-ciphers-cryptography-cybersecurity-activity</loc>
<lastmod>2026-08-25T04:28:40.835Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-3072-sunscreen-showdown-mineral-UV-filters-activity</loc>
<lastmod>2026-08-17T05:03:46.212Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucb-3064-typical-values-jupyter-notebook-activity</loc>
<lastmod>2026-08-25T04:30:02.420Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-3062-pendulum-art-simple-harmonic-motion-activity</loc>
<lastmod>2026-09-01T02:09:51.283Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-3060-rock-solid-solutions-challenge-activity</loc>
<lastmod>2026-09-01T02:09:48.311Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-3044-robot-controller-line-follower-activity</loc>
<lastmod>2026-09-01T02:09:42.100Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst-3033-synthetic-biology-new-genes-proteins-activity</loc>
<lastmod>2026-09-01T02:09:40.805Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-3050-memristor-materials-engineering-design-activity</loc>
<lastmod>2026-09-01T02:09:27.969Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uok-3027-get-slimy-exploring-matter-activity</loc>
<lastmod>2026-09-01T02:09:25.270Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/eclips-3046-nasa-eclips-shower-clock-activity</loc>
<lastmod>2026-09-01T02:09:26.641Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-3045-unbeweavably-strong-structutes-materials-activity</loc>
<lastmod>2026-09-01T02:09:04.317Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-3040-cell-membranes-osmosis-gummy-bears</loc>
<lastmod>2026-09-01T02:08:56.075Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/jpl-3055-light-detector-space-communications-activity</loc>
<lastmod>2026-09-01T02:08:55.279Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/jpl-3053-mars-thermos-design-heat-transfer</loc>
<lastmod>2026-09-01T02:08:53.463Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/jpl-3049-mars-sample-return-coding-challenge</loc>
<lastmod>2026-09-01T02:08:50.744Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/bgsu-2919-all-charged-up-homemade-capacitor-activity</loc>
<lastmod>2026-09-01T02:08:41.074Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uod-3034-beyond-binary-building-blocks-digital-activity</loc>
<lastmod>2026-09-01T02:08:39.473Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-3043-make-it-clean-cleaning-product-activity</loc>
<lastmod>2026-09-01T02:08:38.233Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/jpl-3042-mars-chemistry-coding-challenge-activity</loc>
<lastmod>2026-09-01T02:08:36.150Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uod-3017-microchips-photolithography-light-activity</loc>
<lastmod>2026-09-01T02:08:35.367Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uok-3030-sweet-surfactants-surface-tension-activity</loc>
<lastmod>2026-09-01T02:08:34.704Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uok-3025-polymers-plastic-bioplastics-activity</loc>
<lastmod>2026-09-01T02:08:34.035Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uok-3026-additives-affect-surface-tension-activity</loc>
<lastmod>2026-09-01T02:08:33.265Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uod-3024-rush-hour-mayhem-logic-gates-activity</loc>
<lastmod>2026-09-01T02:08:32.530Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/tam-3022-ethical-twist-engineering-design-activity</loc>
<lastmod>2026-09-01T02:08:31.059Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uok-3021-smart-prosthetic-hand-grip-arduino-activity</loc>
<lastmod>2026-09-01T02:08:29.158Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/fiu-3023-light-based-diagnostic-device-activity</loc>
<lastmod>2026-09-01T02:08:27.848Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/clem-3014-robotics-pick-place-challenge-activity</loc>
<lastmod>2026-09-01T02:08:24.466Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uok-3020-mission-myelin-model-damage-repair-activity</loc>
<lastmod>2026-09-01T02:08:13.176Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-3008-fluid-forces-bridges-hydraulic-systems-activity</loc>
<lastmod>2026-09-01T02:08:12.559Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usm-3009-biome-robots-polymers-survival-activity</loc>
<lastmod>2026-09-01T02:08:10.418Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/clem-3005-sole-survivors-energy-orthotics-activity</loc>
<lastmod>2026-09-01T02:08:08.917Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uon-2997-ethical-hacking-lab-activity</loc>
<lastmod>2026-09-01T02:08:01.298Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uol-3007-fast-track-factory-mass-production-activity</loc>
<lastmod>2026-09-01T02:08:17.146Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/jpl-3028-robotic-arm-challenge-informal-learning-activity</loc>
<lastmod>2026-09-01T02:11:31.872Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ind-3011-straws-strings-fingers-informal-learning-activity</loc>
<lastmod>2026-09-01T02:11:31.245Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uok-2910-surfactants-protein-aggregation-pharmaceuticals-activity</loc>
<lastmod>2026-09-01T02:07:51.698Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uod-2953-materials-down-hill-activity</loc>
<lastmod>2026-09-01T02:08:25.790Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-3002-mines-mobiles-aqueous-solutions-activity</loc>
<lastmod>2026-09-01T02:07:46.374Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/oks-2995-unlocking-secrets-semiconductors-logic-gates-activity</loc>
<lastmod>2026-09-01T02:07:41.267Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uon-2999-ethical-hacking-lab-podman-activity</loc>
<lastmod>2026-09-01T02:07:40.622Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uol-3003-craft-production-efficiency-profit-purpose-activity</loc>
<lastmod>2026-09-01T02:07:23.714Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uok-2996-statistical-analysis-noise-detection-soundproofing</loc>
<lastmod>2026-09-01T02:08:15.532Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis-2924-microcontroller-instruments-medical-use-activity</loc>
<lastmod>2026-09-01T02:07:25.049Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ind-2993-arduino-geiger-counter-activity</loc>
<lastmod>2026-09-01T02:07:07.455Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/tam-2983-life-cycle-energy-buildings-activity</loc>
<lastmod>2026-09-01T02:08:30.424Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uod-2964-toilet-paper-trouble-time-activity</loc>
<lastmod>2026-09-01T02:06:46.802Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-2982-fairy-tale-engineering-three-little-pigs-activity</loc>
<lastmod>2026-09-01T02:06:43.424Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2989-microplastics-filtration-solutions-activity</loc>
<lastmod>2026-09-01T02:06:16.816Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-2979-diy-microscope-challenge-light-activity</loc>
<lastmod>2026-09-01T02:06:15.527Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2975-sediment-transport-bayou-design-solutions</loc>
<lastmod>2026-09-01T02:06:12.721Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2938-neural-data-graphs-python-activity</loc>
<lastmod>2026-09-01T02:06:11.583Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2937-neural-data-processing-database-python-activity</loc>
<lastmod>2026-09-01T02:06:10.348Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2936-virtual-lab-neuroscience-microcontrollers-activity</loc>
<lastmod>2026-09-01T02:06:27.142Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2935-mapping-neuron-recuitment-muscle-action-activity</loc>
<lastmod>2026-09-01T02:06:08.904Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2977-neuromaze-neural-pathways-robotic-navigation-activity</loc>
<lastmod>2026-09-01T02:05:48.144Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2972-muscle-biopotential-signals-emg-sensors-activity</loc>
<lastmod>2026-09-01T02:06:34.338Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uod-2967-greater-good-designing-public-center-activity</loc>
<lastmod>2026-09-01T02:05:44.904Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uod-2974-lost-explorer-making-cyanotype-print-maps</loc>
<lastmod>2026-09-01T02:05:43.638Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-2980-drop-ball-material-physics-motion-quadratics</loc>
<lastmod>2026-09-01T02:05:42.431Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2985-sweet-machine-learning-data-diabetes-activity</loc>
<lastmod>2026-09-01T02:07:38.408Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/clem-2888-investigations-nitinol-metal-shape-memory</loc>
<lastmod>2026-09-01T02:05:38.773Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2963-dragging-dilemma-overcoming-friction-move-rocks-activity</loc>
<lastmod>2026-09-01T02:08:04.102Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/umo-2900-brain-processing-senses-helmet-design-activity</loc>
<lastmod>2026-09-01T02:05:34.446Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/umo-2954-human-emg-signals-robot-movements-activity</loc>
<lastmod>2026-09-01T02:05:46.164Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/umo-2952-tone-shock-conditioning-activity3</loc>
<lastmod>2026-09-01T02:05:26.663Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/umo-2952-neuron-electrical-impulses-activity1</loc>
<lastmod>2026-09-01T02:05:28.415Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/umo-2952-fear-pavlovs-dog-activity2</loc>
<lastmod>2026-09-01T02:05:27.601Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uok-2949-safe-drinking-water-filtration-system-activity</loc>
<lastmod>2026-09-01T02:08:07.634Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ind-2962-arduino-air-quality-monitor-activity</loc>
<lastmod>2026-09-01T02:05:25.588Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/umo-2947-genome-engineer-crispr-cas9-genetic-disorder-activity</loc>
<lastmod>2026-09-01T02:05:23.093Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/usu-2944-maglev-trains-electric-magnetic-field-activity</loc>
<lastmod>2026-09-01T02:08:52.310Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2925-python-functions-copilot-computer-science-activity</loc>
<lastmod>2026-09-01T02:05:22.300Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2920-elisa-point-of-care-devices-antigen-activity</loc>
<lastmod>2026-09-01T02:05:24.055Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2939-rising-sea-levels-density-mixtures-solutions-activity</loc>
<lastmod>2026-09-01T02:05:21.313Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uok-2903-sustainable-separations-chemical-engineering-activity</loc>
<lastmod>2026-09-01T02:05:20.116Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2926-under-pressure-arduino-sensor-force-activity</loc>
<lastmod>2026-09-01T02:05:18.756Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/nds-2865-forest-fires-cars-co2-emissions-activity</loc>
<lastmod>2026-09-01T02:05:16.426Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2842-machine-free-manufacturing-process-activity</loc>
<lastmod>2026-09-01T02:07:27.480Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2929-heat-capacity-water-oil-materials-activity</loc>
<lastmod>2026-09-01T02:05:15.427Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bgsu-2915-projectile-motion-arduino-launcher-competition-activity</loc>
<lastmod>2026-09-01T02:05:14.174Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2918-optical-telescope-building-activity</loc>
<lastmod>2026-09-01T02:05:12.955Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/umo-2941-bright-ideas-light-reflection-microbits-activity</loc>
<lastmod>2026-09-01T02:05:07.166Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uok-2943-helping-hands-assisted-device-multiple-sclerosis-activity</loc>
<lastmod>2026-09-01T02:05:32.414Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/umo-2942-mindful-messages-communication-solutions-activity</loc>
<lastmod>2026-09-01T02:05:05.714Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2858-biodegradable-leaves-nontoxic-packing-material</loc>
<lastmod>2026-09-01T02:05:04.501Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/nds-2866-environment-solutions-river-dynamics-mosquito-activity</loc>
<lastmod>2026-09-01T02:05:01.251Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2928-tap-testing-acoustic-sleuthing-activity</loc>
<lastmod>2026-09-01T02:04:58.323Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2873-scrub-scum-shine-materials-matter</loc>
<lastmod>2026-09-01T02:04:56.715Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2824-stars-spectrometer-spectroscopy-activity</loc>
<lastmod>2026-09-01T02:04:55.726Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2914-density-solutions-mixture-design-process-activity</loc>
<lastmod>2026-09-01T02:05:03.350Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2817-soft-materials-tactile-sensing-activity</loc>
<lastmod>2026-09-01T02:04:51.056Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2885-power-produce-fruits-veggies-solar-cells-activity</loc>
<lastmod>2026-09-01T02:05:02.066Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2884-save-clothes-avocados-matter-properties-activity</loc>
<lastmod>2026-09-01T02:05:41.207Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/umo-2921-panic-attack-brain-computer-nervous-system-activity</loc>
<lastmod>2026-09-01T02:04:49.806Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2689-exploring-matter-rock-candy-activity</loc>
<lastmod>2026-09-01T02:07:41.904Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoo-2917-gatorade-gravity-machine-structure-design-activity</loc>
<lastmod>2026-09-01T02:04:48.518Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2894-paper-football-physics-activity</loc>
<lastmod>2026-09-01T02:04:47.161Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2754-mechanized-farm-equipment-design-activity</loc>
<lastmod>2026-09-01T02:08:44.074Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2615-simon-decoded-computational-thinking-activity</loc>
<lastmod>2026-09-01T02:04:45.058Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2898-protective-fashion-beach-edition-activity</loc>
<lastmod>2026-09-01T02:04:43.785Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2852-international-market-accessibility-engineering-design</loc>
<lastmod>2026-09-01T02:05:08.527Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2702-asymmetric-membranes-microfiltration-algae</loc>
<lastmod>2026-09-01T02:04:38.327Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2830-prototyping-engineering-solutions-cad</loc>
<lastmod>2026-09-01T02:04:42.475Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/nds-2787-earthquake-effects-structural-integrity-building</loc>
<lastmod>2026-09-01T02:05:40.013Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uol-2853-clustering-exploring-periodic-table-elements-activity</loc>
<lastmod>2026-09-01T02:04:30.581Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2845-aquaponics-water-system-bolivia-activity</loc>
<lastmod>2026-09-01T02:05:09.639Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2820-arduino-warning-system-activity</loc>
<lastmod>2026-09-01T02:06:57.041Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2846-raise-roof-engineering-leakproof-roofs-activity</loc>
<lastmod>2026-09-01T02:05:10.466Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2849-engineering-sapling-guard-recycled-materials</loc>
<lastmod>2026-09-01T02:06:37.755Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2804-electrophoresis-gel-box-engineering-activity</loc>
<lastmod>2026-09-01T02:04:15.689Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2831-touch-sensor-arduino-trigger-led-buzzer</loc>
<lastmod>2026-09-01T02:04:15.088Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2794-materials-matter-composites-properties-activity</loc>
<lastmod>2026-09-01T02:04:02.351Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2848-aluminum-rope-metal-design-activity</loc>
<lastmod>2026-09-01T02:04:01.045Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2836-designing-prototypes-save-coral-reefs-activity</loc>
<lastmod>2026-09-01T02:07:59.915Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2802-distance-displacement-measurement-activity</loc>
<lastmod>2026-09-01T02:03:45.043Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2810-healthy-cancerous-cells-arduino-activity</loc>
<lastmod>2026-09-01T02:03:44.417Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/nds-2779-flood-causes-mitigation-strategies-activity</loc>
<lastmod>2026-09-01T02:06:32.832Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2800-power-drag-lab-work-energy</loc>
<lastmod>2026-09-01T02:04:03.392Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2789-polyvalency-polyresistance-organisms-bacteriophage-activity</loc>
<lastmod>2026-09-01T02:03:41.109Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2822-machine-learning-interactive-journey-activity</loc>
<lastmod>2026-09-01T02:03:40.483Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2840-engineering-friction-grip-activity</loc>
<lastmod>2026-09-01T02:07:29.544Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2847-ping-pong-ball-retriever-engineering-challenge</loc>
<lastmod>2026-09-01T02:07:37.259Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2795-fluid-viscosity-temperature-activity</loc>
<lastmod>2026-09-01T02:03:39.788Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2703-insulator-design-challenge-activity</loc>
<lastmod>2026-09-01T02:06:40.469Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2792-wave-refractions-angle-activity</loc>
<lastmod>2026-09-01T02:03:34.357Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2825-creative-engineering-electric-vehicle-design</loc>
<lastmod>2026-09-01T02:05:31.086Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2797-robomentum-velocity-mass-momentum-activity</loc>
<lastmod>2026-09-01T02:03:33.312Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2763-exploring-light-holographic-chocolate-activity</loc>
<lastmod>2026-09-01T02:06:47.984Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2803-solar-powered-car-design-activity</loc>
<lastmod>2026-09-01T02:03:30.800Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2767-oil-spill-cleanup-polarity-activity</loc>
<lastmod>2026-09-01T02:03:32.025Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2827-tinkercad-circuits-ev-motor-workshop</loc>
<lastmod>2026-09-01T02:09:21.795Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2826-tinkercad-3d-design-ev-concept-car-workshop</loc>
<lastmod>2026-09-01T02:04:54.347Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2812-environmental-justice-storymap-collection-activity</loc>
<lastmod>2026-09-01T02:09:39.855Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2812-environmental-impact-storymap-collection-activity</loc>
<lastmod>2026-09-01T02:05:35.493Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ucb-2791-periodic-table-intro-elements-activity</loc>
<lastmod>2026-09-01T02:03:02.083Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ind-2837-earth-critical-zone-edible-model-cross-sections</loc>
<lastmod>2026-09-01T02:02:58.223Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2785-heat-transfer-solar-dryers-activity</loc>
<lastmod>2026-09-01T02:02:56.770Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2819-python-conditionals-artificial-intelligence-technology</loc>
<lastmod>2026-09-01T02:02:56.163Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ind-2761-chasing-sun-solar-panel-activity</loc>
<lastmod>2026-09-01T02:03:01.417Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2643-amazing-hydrogels-polymers-activity</loc>
<lastmod>2026-09-01T02:09:46.242Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2781-recycle-water-cleaning-device-activity</loc>
<lastmod>2026-09-01T02:02:50.612Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2672-roller-coaster-energy-engineering-design</loc>
<lastmod>2026-09-01T02:05:30.303Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2766-gel-engineering-mixture-solution-activity</loc>
<lastmod>2026-09-01T02:03:08.711Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2765-concrete-composites-lab-activity</loc>
<lastmod>2026-09-01T02:02:46.483Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2760-accessible-toys-visually-impaired-students</loc>
<lastmod>2026-09-01T02:06:49.255Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uow-2692-living-walls-arduino-sensing-toolkit</loc>
<lastmod>2026-09-01T02:02:45.843Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2764-clean-cooking-matters-activity</loc>
<lastmod>2026-09-01T02:05:11.729Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2701-3d-printing-cad-software-activity</loc>
<lastmod>2026-09-01T02:02:28.553Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2743-atmospheric-distortion-light-bubbles-air</loc>
<lastmod>2026-09-01T02:01:29.323Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/umo-2550-brain-waves-applications-analysis-activity</loc>
<lastmod>2026-09-01T02:09:38.058Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2742-operation-airdrop-protect-cargo-design</loc>
<lastmod>2026-09-01T02:02:59.747Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2723-environment-plants-soil-properties-activity</loc>
<lastmod>2026-09-01T02:02:29.212Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2716-designing-magnifiers-magnification-phenomenon</loc>
<lastmod>2026-09-01T02:01:24.840Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2712-prosthetics-power-engineering-design-activity</loc>
<lastmod>2026-09-01T02:08:05.451Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/usm-2669-engineering-efficiency-alcoholic-fermentation</loc>
<lastmod>2026-09-01T02:01:13.732Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2644-crystal-creator-resistance-conductors-insulators</loc>
<lastmod>2026-09-01T02:01:13.087Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2461-soil-mechanics-science-activity</loc>
<lastmod>2026-09-01T02:01:36.106Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2640-pretty-colors-light-absorbence-activity</loc>
<lastmod>2026-09-01T02:06:50.868Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2693-musical-instruments-design-material-properties</loc>
<lastmod>2026-09-01T02:01:02.516Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uow-2675-electromagnetic-waves-radiation-spectrum-activity</loc>
<lastmod>2026-09-01T02:00:52.799Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uconn-2673-minimizing-pressure-optimizing-comfort-capacitance</loc>
<lastmod>2026-09-01T02:00:53.560Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/pur-2655-net-zero-ecological-building-design-activity</loc>
<lastmod>2026-09-01T02:01:03.630Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2745-hands-free-reading-structure-engineering-design</loc>
<lastmod>2026-09-01T02:03:00.762Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2696-animal-adaptation-fashion-show-activity</loc>
<lastmod>2026-09-01T02:04:13.963Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/utep-2663-rc-circuits-electricity-current-activity</loc>
<lastmod>2026-09-01T02:01:00.485Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh-2668-keep-heat-in-insulation-materials-activity</loc>
<lastmod>2026-09-01T02:01:01.079Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2709-seeing-sound-musical-art-waves-activity</loc>
<lastmod>2026-09-01T02:01:01.691Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh-2667-biodegradable-hydrogels-water-conservation</loc>
<lastmod>2026-09-01T02:04:59.633Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/umo-2558-exploration-ecg-emg-technologies-activity</loc>
<lastmod>2026-09-01T02:09:29.271Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2713-save-snails-designing-collapsible-barrier</loc>
<lastmod>2026-09-01T02:00:59.491Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2720-sinkhole-sinkhole-emergency-engineering-design-process</loc>
<lastmod>2026-09-01T02:06:44.746Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2711-fabricating-focus-tool-engineering-design-process</loc>
<lastmod>2026-09-01T02:00:58.197Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2704-oil-spill-clean-up-engineering-design-activity</loc>
<lastmod>2026-09-01T02:00:57.016Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/und-2664-alkane-resources-molecules-activity</loc>
<lastmod>2026-09-01T02:00:56.098Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uconn-2662-contractions-calculations-force-resistance-activity</loc>
<lastmod>2026-09-01T02:00:55.480Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2646-contaminated-water-mystery-activity</loc>
<lastmod>2026-09-01T02:00:54.414Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2719-award-design-structure-materials-activity</loc>
<lastmod>2026-09-01T01:59:05.169Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2631-algae-blooms-takeover-engineering-design-activity</loc>
<lastmod>2026-09-01T02:08:14.114Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2637-seed-trap-engineering-design-activity</loc>
<lastmod>2026-09-01T01:59:53.960Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/upitt-2616-cancer-treatments-engineering-design-process-activity</loc>
<lastmod>2026-09-01T01:58:38.888Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/upitt-2620-engineering-hydroponic-system-activity</loc>
<lastmod>2026-09-01T01:58:27.374Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2657-mission-impossible-voltaic-protocol-activity</loc>
<lastmod>2026-09-01T01:58:26.031Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2641-light-up-machines-building-fluorescent-prototype</loc>
<lastmod>2026-09-01T01:58:14.424Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2658-water-bottle-holder-engineering-design-activity</loc>
<lastmod>2026-09-01T01:58:13.159Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2638-light-dyes-exploring-bioluminescence-activity</loc>
<lastmod>2026-09-01T02:08:54.273Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2485-photocatalytic-delivery-system-maker-challenge</loc>
<lastmod>2026-09-01T02:10:02.801Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ced-2680-engineering-design-process-thinking</loc>
<lastmod>2026-09-01T02:09:00.366Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ced-2706-transportation-fuels-debate-engineering-design</loc>
<lastmod>2026-09-01T02:08:46.197Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ced-2707-carbon-footprints-transportation-greenhouse-gases</loc>
<lastmod>2026-09-01T02:04:53.592Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ced-2705-mouse-trap-cars-engineering-design</loc>
<lastmod>2026-09-01T02:04:52.350Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ced-2679-straw-bridges-design-challenge-activity</loc>
<lastmod>2026-09-01T02:08:58.639Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ced-2678-creative-crash-testing-car-challenge-activity</loc>
<lastmod>2026-09-01T02:09:15.498Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ced-2671-efficient-car-design-challenge-activity</loc>
<lastmod>2026-09-01T02:09:12.275Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ced-2670-newspaper-towers-engineering-design-activity</loc>
<lastmod>2026-09-01T02:09:13.516Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2636-carbon-emissions-3-5-activity</loc>
<lastmod>2026-09-01T01:57:27.034Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2635-carbon-emissions-carl-k-2-activity</loc>
<lastmod>2026-09-01T01:57:28.043Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2633-air-quality-weather-connections-3-5-activity</loc>
<lastmod>2026-09-01T02:04:37.383Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2632-air-quality-particulate-matter-k-2-activity</loc>
<lastmod>2026-09-01T02:04:39.144Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2622-machine-learning-diabetes-prediction</loc>
<lastmod>2026-09-01T01:57:49.260Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/upitt-2621-engineering-better-cast-design-activity</loc>
<lastmod>2026-09-01T01:57:21.788Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/fiu-2614-sensors-hearts-arduino-engineering-design</loc>
<lastmod>2026-09-01T02:05:29.304Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uow-2585-speed-sound-altitude-activity</loc>
<lastmod>2026-09-01T01:57:04.130Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/vpi-2594-watershed-delineation-activity</loc>
<lastmod>2026-09-01T02:06:55.827Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2630-engineering-seawall-storm-erosion-activity</loc>
<lastmod>2026-09-01T01:57:38.496Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2613-nature-solution-biomimicry-engineering</loc>
<lastmod>2026-09-01T02:06:36.934Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/vpi-2603-exploring-flow-rate-activity</loc>
<lastmod>2026-09-01T01:53:14.345Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-2460-fun-leaf-chromotography-activity</loc>
<lastmod>2026-09-01T02:06:14.643Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usu-2586-data-optimize-vending-machine</loc>
<lastmod>2026-09-01T02:01:39.662Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2629-snack-holder-recycled-materials-design-activity</loc>
<lastmod>2026-09-01T01:53:08.909Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2627-pollinate-flower-materials-design</loc>
<lastmod>2026-09-01T01:58:48.496Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2612-measuring-small-things-activity</loc>
<lastmod>2026-09-01T01:52:56.159Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2625-designing-communication-device-sound-activity</loc>
<lastmod>2026-09-01T02:00:18.637Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2624-absorbing-airplane-noise-activity</loc>
<lastmod>2026-09-01T02:02:51.520Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uow-2579-evaporation-transpiration-function-activity</loc>
<lastmod>2026-09-01T01:58:11.442Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/vpi-2595-paper-towers-pool-balls-challenge-pbl</loc>
<lastmod>2026-09-01T01:49:40.454Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/bos-2580-balance-liquid-coin-forces-activity</loc>
<lastmod>2026-09-01T02:04:55.098Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uom-2552-what-is-python-activity</loc>
<lastmod>2026-09-01T01:49:17.175Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2544-cell-structures-fluorescent-dyes-activity</loc>
<lastmod>2026-09-01T01:49:23.621Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2348-judgement-jellybeans-linear-model-activity</loc>
<lastmod>2026-09-01T02:06:18.793Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/umo-2547-jupyter-notebook-explore-waves-activity</loc>
<lastmod>2026-09-01T01:49:37.978Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cmu-2516-leaf-etchings-model-structure-photosynthesis</loc>
<lastmod>2026-09-01T02:00:15.282Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2317-wind-powered-car-engineering-design</loc>
<lastmod>2026-09-01T01:51:26.929Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2319-jack-escape-slide-engineering-design</loc>
<lastmod>2026-09-01T01:57:06.542Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usu-2577-improving-covid-procedures-school-engineering-design</loc>
<lastmod>2026-09-01T02:06:39.675Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uop-2575-modeling-nuclear-damage-cell-movement</loc>
<lastmod>2026-09-01T02:06:50.257Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2316-engineering-minion-rescue-buoyancy-float</loc>
<lastmod>2026-09-01T02:00:02.281Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uow-2546-post-launch-analysis-cosmic-radiation-activity3</loc>
<lastmod>2026-09-01T01:56:45.172Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uow-2546-high-altitude-balloon-launch-cosmic-radiation-activity2</loc>
<lastmod>2026-09-01T01:56:06.791Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uow-2456-building-payload-cosmic-radiation-activity1</loc>
<lastmod>2026-09-01T02:06:38.941Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/pur-2576-lunar-olympics-physics-online-activity</loc>
<lastmod>2026-09-01T01:49:11.597Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uconn-2523-lean-manufacturing-process-activity</loc>
<lastmod>2026-09-01T01:53:22.475Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice2-2524-energy-innovator-generator-activity</loc>
<lastmod>2026-09-01T01:51:02.818Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice2-crystalline-cloth-model-water-treatment-filters</loc>
<lastmod>2026-09-01T02:00:52.180Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice2-2545-car-design-side-impact-crash-safety-feature</loc>
<lastmod>2026-09-01T01:49:52.017Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice2-2510-handcrafted-cement-shape-engineering-activity</loc>
<lastmod>2026-09-01T01:50:57.281Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice2-resin-keyrings-keychains-fabrication</loc>
<lastmod>2026-09-01T01:56:09.082Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ind-2572-modeling-testing-slime-physical-properties</loc>
<lastmod>2026-09-01T01:51:03.442Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2521-engineering-solutions-dry-playground-design</loc>
<lastmod>2026-09-01T01:59:03.629Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cmu-2561-turtle-bridge-engineering-design</loc>
<lastmod>2026-09-01T01:53:07.013Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla-energy-projects</loc>
<lastmod>2026-09-01T01:53:24.843Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uon-2543-tracking-movements-metadata-activity</loc>
<lastmod>2026-09-01T01:54:15.416Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice2-2535-removing-scaling-sources-citric-acid</loc>
<lastmod>2026-09-01T02:00:42.864Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice2-2527-bacteria-antibiotic-resistance-nanotechnology-activity</loc>
<lastmod>2026-09-01T01:50:49.104Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice2-2501-bacteriophage-virus-bacteria-builder-challenge</loc>
<lastmod>2026-09-01T02:09:58.789Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2509-super-slime-material-science-engineering</loc>
<lastmod>2026-09-01T01:49:03.000Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2498-engineering-solutions-sticky-situation-design</loc>
<lastmod>2026-09-01T01:49:48.768Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cmu-2539-paper-spiral-elevator-design</loc>
<lastmod>2026-09-01T01:56:22.857Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2499-clean-green-washing-machine-challenge-activity</loc>
<lastmod>2026-09-01T01:52:54.700Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice2-2526-water-natural-source-freshwater-saltwater-activity</loc>
<lastmod>2026-09-01T01:59:45.859Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice2-2502-nanotube-breast-cancer-design-challenge</loc>
<lastmod>2026-09-01T02:10:03.318Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoa-2458-plastic-properties-environment-effects</loc>
<lastmod>2026-09-01T02:01:08.427Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/unm-2490-conductive-circuit-card-company-activity</loc>
<lastmod>2026-09-01T02:03:24.060Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rut-2497-food-electrical-circuit-device-design</loc>
<lastmod>2026-09-01T02:08:06.757Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis-2476-boat-afloat-corrosion-engineering-design-activity</loc>
<lastmod>2026-09-01T01:50:52.854Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uakron-2451-aerogel-cookies-engineering-design-process</loc>
<lastmod>2026-09-01T02:08:20.999Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2505-bio-husk-bags-design-challenge</loc>
<lastmod>2026-09-01T02:09:59.520Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2308-flight-fruit-weight-gravity-imagination</loc>
<lastmod>2026-09-01T01:50:41.572Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ind-2472-trust-truss-design-wooden-bridge-activity</loc>
<lastmod>2026-09-01T02:01:42.713Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rut-2487-nanotechnology-action-organic-electronics</loc>
<lastmod>2026-09-01T01:50:36.741Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub-2538-exploring-variables-mint-mobiles-high-school</loc>
<lastmod>2026-09-01T02:07:10.655Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub-2537-exploring-variables-mint-mobiles-middle-school</loc>
<lastmod>2026-09-01T02:07:09.579Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis-2484-computer-simulation-artificial-neural-network-activity</loc>
<lastmod>2026-09-01T01:55:11.822Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis-2480-constructing-testing-3d-printed-glove-activity</loc>
<lastmod>2026-09-01T02:01:26.422Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm-2353-acting-algorithm-google-pagerank-activity</loc>
<lastmod>2026-09-01T01:52:22.957Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-2420-liquid-crystal-thermometers-design</loc>
<lastmod>2026-09-01T01:52:02.261Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2368-gene-therapy-design-activity</loc>
<lastmod>2026-09-01T01:54:49.528Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ind-2350-radiation-pressure-photons-intensity-flux</loc>
<lastmod>2026-09-01T02:08:18.281Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uconn-2400-cracking-bone-force-design-activity</loc>
<lastmod>2026-09-01T02:06:57.754Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2496-bandage-water-absorbing-crystals-design-challenge</loc>
<lastmod>2026-09-01T02:10:15.222Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2495-inundation-inspiration-design-challenge</loc>
<lastmod>2026-09-01T02:10:19.945Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2493-freewheeling-friction-design-challenge</loc>
<lastmod>2026-09-01T02:10:21.117Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2492-silkworm-strength-bridge-design-challenge</loc>
<lastmod>2026-09-01T02:10:18.729Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2491-damp-drought-plant-design-challenge</loc>
<lastmod>2026-09-01T02:10:39.353Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice3-2467-milky-way-stars-design-challenge</loc>
<lastmod>2026-09-01T02:10:04.508Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van-2465-ar-mirror-physiology-programming-challenge</loc>
<lastmod>2026-09-01T02:10:05.619Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice3-2481-pedometer-wearable-technology-design-challenge</loc>
<lastmod>2026-09-01T02:10:26.293Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-2407-bacterial-adaptations-application-genetic-engineering</loc>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2242-animal-survival-engineering-habitat-design</loc>
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<loc>https://www.teachengineering.org/activities/usm-2398-slime-graphing-speed-tensile-strength</loc>
<lastmod>2026-09-01T01:49:31.660Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2378-engineering-compost-habitat-red-wigglers-worms</loc>
<lastmod>2026-09-01T01:56:09.795Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cmu-2452-boat-design-constraints-engineering-challenge</loc>
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<url>
<loc>https://www.teachengineering.org/activities/cmu-2450-toxic-island-design-engineering-challenge</loc>
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<url>
<loc>https://www.teachengineering.org/activities/rice2-2408-drinking-water-drinkable-design-challenge</loc>
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<url>
<loc>https://www.teachengineering.org/activities/rice2-2422-ball-chemistry-engineering-design-maker-challenge</loc>
<lastmod>2026-09-01T02:09:57.883Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice4-2386-trigonometric-functions-heart-modeling-ppg-pulses</loc>
<lastmod>2026-09-01T02:06:55.201Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice2-2370-engineering-silver-nanoparticles</loc>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2362-bacteria-everywhere-engineering-design</loc>
<lastmod>2026-09-01T01:58:40.752Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cmu2-2343-paint-dry-design</loc>
<lastmod>2026-09-01T01:55:26.431Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2389-hydrophobic-surfaces-engineering-challenge</loc>
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<url>
<loc>https://www.teachengineering.org/activities/rice2-2347-polymers-clean-water-design-activity</loc>
<lastmod>2026-09-01T01:49:22.920Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uconn-2462-shin-guards-design-engineering-challenge</loc>
<lastmod>2026-09-01T02:09:56.777Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/drex-2357-water-use-conservation-data-analysis-central-tendency</loc>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2405-cooler-design-engineering-challenge</loc>
<lastmod>2026-09-01T02:10:29.083Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2406-bouncy-ball-factory-engineering-challenge</loc>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2361-sea-turtle-eggs-engineering-design-process</loc>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2397-prodigious-printing-possibilities-activity</loc>
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<loc>https://www.teachengineering.org/activities/uof-2359-naturally-organized-insect-design</loc>
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<loc>https://www.teachengineering.org/activities/uof-2367-popsicle-engineering-design-process</loc>
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<loc>https://www.teachengineering.org/activities/uot-1536-trebuchet-design-build-engineering-challenge</loc>
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<loc>https://www.teachengineering.org/activities/rice-2371-engineering-gummy-candy-hydrogels</loc>
<lastmod>2026-09-01T02:05:47.272Z</lastmod>
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<loc>https://www.teachengineering.org/activities/uof-2355-engineering-habitat-humidity-design-process</loc>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2354-engineering-world-oobleck-design-process</loc>
<lastmod>2026-09-01T02:06:53.201Z</lastmod>
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<loc>https://www.teachengineering.org/activities/mis-2342-3d-printng-computer-aided-design-g-code-basics</loc>
<lastmod>2026-09-01T01:55:40.199Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/nds-2337-air-racer-cars-design-tinkercad</loc>
<lastmod>2026-09-01T02:01:36.952Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ind-2390-sweet-volume-polynomials-design-optimization</loc>
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<url>
<loc>https://www.teachengineering.org/activities/nds-2336-ping-pong-paddle-engineering-design-process-challenge</loc>
<lastmod>2026-09-01T01:53:20.957Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/nds-2335-cooler-challenge-engineering-design-process</loc>
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<url>
<loc>https://www.teachengineering.org/activities/rice2-2374-glow-show-slime-engineering-design-maker-challenge</loc>
<lastmod>2026-09-01T02:10:00.641Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2136-design-nano-polymer-smartphone-case-maker-challenge</loc>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2270-design-soundproof-room-activity</loc>
<lastmod>2026-09-01T02:07:30.862Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2270-soundproofing-material-activity</loc>
<lastmod>2026-09-01T01:59:24.288Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/usm-2292-exploring-integumentary-systems-animals-research</loc>
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<url>
<loc>https://www.teachengineering.org/activities/usm-2287-engineering-polymers-potatoes</loc>
<lastmod>2026-09-01T01:49:28.365Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice2-2264-silver-nanoparticles-nitrate-chemical-reaction</loc>
<lastmod>2026-09-01T01:53:48.616Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2271-color-change-paint-ph-engineering-design-challenge</loc>
<lastmod>2026-09-01T01:50:57.940Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2267-sled-hockey-design-challenge-materials-engineering</loc>
<lastmod>2026-09-01T02:01:54.904Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cud-2274-quicksand-stress-pressure-liquefaction-design</loc>
<lastmod>2026-09-01T01:50:19.699Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice3-2349-heartbeat-microcontroller-led-senor-design-challenge</loc>
<lastmod>2026-09-01T02:10:33.107Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2227-distance-sensing-product-ultrasonic-arduino-microcontroller</loc>
<lastmod>2026-09-01T02:01:10.018Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2266-properties-matter-design-cellphone-case</loc>
<lastmod>2026-09-01T01:58:51.918Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/nyu2-2298-sensors-visualization-data-arduino-circuit-challenge</loc>
<lastmod>2026-09-01T02:10:06.847Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2272-sled-design-challenge-earthquakes-emergency</loc>
<lastmod>2026-09-01T02:06:30.803Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/lau-2321-simple-machines-mechanisms-rube-goldberg-challenge</loc>
<lastmod>2026-09-01T02:10:01.778Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2265-dyeing-design-dilution-concentration-solution</loc>
<lastmod>2026-09-01T01:51:16.964Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice2-2121-nanotechnology-qr-code-scavenger-hunt</loc>
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<url>
<loc>https://www.teachengineering.org/activities/uow-2262-studying-denali-topographic-maps-ratios-gis</loc>
<lastmod>2026-09-01T01:56:46.031Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uow-2262-geometry-geocaching-gis-gps-technology</loc>
<lastmod>2026-09-01T01:49:53.459Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2243-biochar-measurements-water-soil-contamination</loc>
<lastmod>2026-09-01T01:55:00.588Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2253-human-bloodhounds-nanomaterials-body-buckeyballs</loc>
<lastmod>2026-09-01T01:50:00.125Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-1921-shantytown-construction-redesign-composite-material-science</loc>
<lastmod>2026-09-01T02:06:26.314Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/van2-2268-visualizing-body-motion-vectors-augmented-reality-kinematics</loc>
<lastmod>2026-09-01T01:52:53.027Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2230-counting-atoms-law-conservation-matter</loc>
<lastmod>2026-09-01T01:58:56.778Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice2-2254-nanoparticles-photocatalytic-speed-filtration-system</loc>
<lastmod>2026-09-01T02:01:48.441Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/nds-2224-bio-engineering-proteins-dna-modeling-testing</loc>
<lastmod>2026-09-01T02:02:32.243Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2245-zooming-scale-systems-thinking-nature-outdoor-learning</loc>
<lastmod>2026-09-01T02:00:11.979Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uok-2216-microplastic-extraction-cleanser-beads-filter-design</loc>
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<url>
<loc>https://www.teachengineering.org/activities/uok-2216-wastewater-treatment-plant-model-water-quality</loc>
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<url>
<loc>https://www.teachengineering.org/activities/uok-2216-tracing-fluorescent-plastics-aquatic-environment</loc>
<lastmod>2026-09-01T02:02:53.782Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/spfun-2176-glowing-pokemon-go-patches-el-panels-circuit</loc>
<lastmod>2026-09-01T02:06:59.188Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2231-designing-sunglasses-light-polarization-sensor</loc>
<lastmod>2026-09-01T01:50:42.364Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/spfun-2141-led-cloud-connected-arduino-coding-light-fixture</loc>
<lastmod>2026-09-01T02:07:00.051Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2219-xbee-lights-motors-arduino-wireless-communication</loc>
<lastmod>2026-09-01T02:10:31.687Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2217-servo-bluetooth-phone-arduino-wireless</loc>
<lastmod>2026-09-01T02:10:43.237Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2216-servo-arm-arduino-serial-communication-protocol</loc>
<lastmod>2026-09-01T02:10:35.681Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-1901-natural-disasters-gis-gps-data-analysis</loc>
<lastmod>2026-09-01T02:07:26.545Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2229-perfect-vehicle-criteria-solar-speed-volume</loc>
<lastmod>2026-09-01T01:50:25.882Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/spfun-2146-sound-reactive-clothing-arduino-e-textile</loc>
<lastmod>2026-09-01T02:07:02.534Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/spfun-1856-binary-trumpet-digital-music-breadboard-circuitry</loc>
<lastmod>2026-09-01T01:51:53.380Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/unm-2006-et-phone-home-photovoltaics-solar-energy</loc>
<lastmod>2026-09-01T01:57:29.879Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2257-clean-it-up-oil-spill-product-challenge</loc>
<lastmod>2026-09-01T02:10:40.446Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ncs-2016-weather-measure-humidity-build-psychrometer</loc>
<lastmod>2026-09-01T01:58:51.310Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/spfun-1851-shoebox-arcade-game-controller-makey-circuit</loc>
<lastmod>2026-09-01T02:05:06.331Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-1971-monitoring-noise-levels-smart-device-physics</loc>
<lastmod>2026-09-01T02:01:47.783Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-1616-electronic-circuit-applications-systems-of-equations</loc>
<lastmod>2026-09-01T02:01:22.412Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2206-sticky-note-fan-arduino-motor-control</loc>
<lastmod>2026-09-01T02:10:24.832Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2201-popsicle-robot-arduino-servo-flex-sensor</loc>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2136-build-night-light-arduino-photocell</loc>
<lastmod>2026-09-01T02:10:09.253Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2131-building-light-sculptures-arduino-output-leds</loc>
<lastmod>2026-09-01T02:10:27.770Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2126-introduction-arduino-connected-blinking-leds</loc>
<lastmod>2026-09-01T02:10:16.335Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/usm-2091-lab-research-design-phosphorescent-materials</loc>
<lastmod>2026-09-01T01:49:25.305Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/usu-1961-everyday-problems-introduction-engineering-design</loc>
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<url>
<loc>https://www.teachengineering.org/activities/ind-1996-frictional-roller-coaster-design-project-calculus</loc>
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<url>
<loc>https://www.teachengineering.org/activities/uod-1926-linear-regression-design-challenge</loc>
<lastmod>2026-09-01T01:57:25.474Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uconn-2111-build-solar-usb-charger-circuit-design</loc>
<lastmod>2026-09-01T02:11:28.750Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2101-out-of-box-cardboard-furniture-design-challenge</loc>
<lastmod>2026-09-01T02:10:03.839Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/nds-1731-semipermeable-membrane-prototypes-kidney-dialysis</loc>
<lastmod>2026-09-01T01:58:46.177Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/nds-1741-statistical-analysis-temperature-sensors-accuracy</loc>
<lastmod>2026-09-01T02:03:29.195Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/nds-1726-bone-transplants-biomedical-mimic-3d</loc>
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<url>
<loc>https://www.teachengineering.org/activities/uva-1951-help-bill-bioprinting-skin-muscle-bone</loc>
<lastmod>2026-09-01T01:52:34.000Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/nds-1746-creative-crash-test-cars-mass-momentum</loc>
<lastmod>2026-09-01T02:10:30.322Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/nds-1736-rocky-beach-weathering-model-rock-cycle</loc>
<lastmod>2026-09-01T01:53:57.855Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ucd-1371-cupcakes-product-life-cycle-assessment-impact</loc>
<lastmod>2026-09-01T01:49:27.646Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-1906-cool-puppy-doghouse-design-heat</loc>
<lastmod>2026-09-01T02:10:10.551Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ucd-1811-algae-edible-model-cell-biofuel</loc>
<lastmod>2026-09-01T02:00:25.070Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/spfun-1881-light-up-plush-pals-circuits-e-textiles</loc>
<lastmod>2026-09-01T02:07:01.757Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/und-1721-big-data-collection-manipulation-analysis</loc>
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<url>
<loc>https://www.teachengineering.org/activities/spfun-1876-night-light-pennant-lilymini-protosnap</loc>
<lastmod>2026-09-01T02:02:00.991Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ncs-2026-chernobyl-empathy-nuclear-energy</loc>
<lastmod>2026-09-01T02:00:00.305Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ncs-2021-wind-patterns-desert-hydropower</loc>
<lastmod>2026-09-01T01:50:13.328Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ncs-2011-solar-farm-cost-benefit-analysis</loc>
<lastmod>2026-09-01T01:49:20.164Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ncs-2031-cookie-mining-cost-benefit-analysis-analysis-profit</loc>
<lastmod>2026-09-01T01:51:23.085Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/spfun_paper_circuits_activity1</loc>
<lastmod>2026-09-01T02:03:17.210Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/spfun_dance_maker1</loc>
<lastmod>2026-09-01T02:10:08.020Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/fiu_models_activity1</loc>
<lastmod>2026-09-01T01:49:54.270Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_elliptical_table_activity1</loc>
<lastmod>2026-09-01T02:02:17.704Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/spfun_tinymonster_activity1</loc>
<lastmod>2026-09-01T02:06:33.426Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/gat_lighting_activity1</loc>
<lastmod>2026-09-01T01:49:17.789Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_geotools_lesson01_activity1</loc>
<lastmod>2026-09-01T01:50:40.870Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/tcnj_classroom_activity1</loc>
<lastmod>2026-09-01T01:54:41.790Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/spfun_artpins_activity1</loc>
<lastmod>2026-09-01T02:09:01.663Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/spfun_masks_activity1</loc>
<lastmod>2026-09-01T02:06:58.411Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/spfun_keyboard_activity1</loc>
<lastmod>2026-09-01T01:55:51.401Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_tslauncher_maker1</loc>
<lastmod>2026-09-01T02:10:17.433Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_carrierdevices_maker1</loc>
<lastmod>2026-09-01T02:10:22.264Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_sneaker_maker1</loc>
<lastmod>2026-09-01T02:10:13.984Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/spfun_rgbcolor_maker1</loc>
<lastmod>2026-09-01T02:10:23.566Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_bottlerockets_activity1</loc>
<lastmod>2026-09-01T02:02:24.584Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_scaling_lesson01_activity1</loc>
<lastmod>2026-09-01T01:59:30.010Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_polygons_angles_trusses_lesson01_activity2</loc>
<lastmod>2026-09-01T01:59:47.941Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_polygons_angles_trusses_lesson01_activity1</loc>
<lastmod>2026-09-01T01:57:00.680Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_aqueducts_lesson01_activity1</loc>
<lastmod>2026-09-01T02:01:47.056Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_scale_model_lesson01_activity2</loc>
<lastmod>2026-09-01T01:57:33.894Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_scale_model_lesson01_activity1</loc>
<lastmod>2026-09-01T01:59:21.683Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_linear_programming_lesson01_activity1</loc>
<lastmod>2026-09-01T01:53:43.442Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_potholes_lesson01_activity1</loc>
<lastmod>2026-09-01T01:49:18.612Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spatviz_lesson01_activity4</loc>
<lastmod>2026-09-01T02:06:54.260Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spatviz_lesson01_activity3</loc>
<lastmod>2026-09-01T01:51:04.391Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spatviz_lesson01_activity2</loc>
<lastmod>2026-09-01T01:59:18.830Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spatviz_lesson01_activity1</loc>
<lastmod>2026-09-01T01:57:04.938Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_assistive_device_activity1</loc>
<lastmod>2026-09-01T01:59:27.343Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/spfun_lightsculpt_activity2</loc>
<lastmod>2026-09-01T01:50:09.434Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/spfun_lightsculpt_activity1</loc>
<lastmod>2026-09-01T01:50:04.407Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ind_complex_solids_activity1</loc>
<lastmod>2026-09-01T02:08:20.281Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_capillary_action_activity1</loc>
<lastmod>2026-09-01T01:53:53.109Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_homeostasis_activity1</loc>
<lastmod>2026-09-01T01:55:21.733Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_windturbine_activity1</loc>
<lastmod>2026-09-01T02:06:13.909Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice_magnetic_activity1</loc>
<lastmod>2026-09-01T01:55:15.554Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_mutations_lesson01_activity1</loc>
<lastmod>2026-09-01T01:49:21.512Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice_surfactants_activity1</loc>
<lastmod>2026-09-01T01:53:32.549Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usu_safety_activity1</loc>
<lastmod>2026-09-01T02:08:22.872Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_space8_lesson01_activity2</loc>
<lastmod>2026-09-01T02:09:18.464Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_soil_solarization_lesson01_activity1</loc>
<lastmod>2026-09-01T01:50:18.157Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/gat_robots_lesson01_activity2</loc>
<lastmod>2026-09-01T02:08:21.895Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/gat_robots_lesson01_activity1</loc>
<lastmod>2026-09-01T02:01:52.283Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/gat_esr_test_activity1</loc>
<lastmod>2026-09-01T02:09:33.709Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airquality_lesson01_activity5</loc>
<lastmod>2026-09-01T01:55:31.503Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airquality_lesson01_activity4</loc>
<lastmod>2026-09-01T01:55:30.272Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airquality_lesson01_activity3</loc>
<lastmod>2026-09-01T02:09:37.025Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airquality_lesson01_activity2</loc>
<lastmod>2026-09-01T01:56:20.864Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airquality_lesson01_activity1</loc>
<lastmod>2026-09-01T01:55:32.664Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usm_surfactant_activity1</loc>
<lastmod>2026-09-01T01:51:19.289Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_derbytool_activity1</loc>
<lastmod>2026-09-01T01:54:39.158Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_carbonfiber_lesson01_activity1</loc>
<lastmod>2026-09-01T02:01:38.865Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson05_activity4</loc>
<lastmod>2026-09-01T02:09:32.278Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice_erruption_activity1</loc>
<lastmod>2026-09-01T02:02:33.074Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/gat_mirrors_activity1</loc>
<lastmod>2026-09-01T02:08:43.285Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_windpower_spanish_sprinkle</loc>
<lastmod>2026-09-01T02:10:47.654Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_strawbridges_spanish_sprinkle</loc>
<lastmod>2026-09-01T02:11:15.771Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_superspinners_spanish_sprinkle</loc>
<lastmod>2026-09-01T02:10:46.955Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice_biochar_activity1</loc>
<lastmod>2026-09-01T01:54:24.578Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_alloy_lesson01_activity1</loc>
<lastmod>2026-09-01T02:02:04.464Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_windpower_sprinkle</loc>
<lastmod>2026-09-01T02:11:03.424Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_superspinners_sprinkle</loc>
<lastmod>2026-09-01T02:11:04.101Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_strawbridges_sprinkle</loc>
<lastmod>2026-09-01T02:11:28.094Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usm_membranes_activity1</loc>
<lastmod>2026-09-01T01:49:20.790Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spaghettibridge_spanish_sprinkle</loc>
<lastmod>2026-09-01T02:11:10.983Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_towerinvestigation_spanish_sprinkle</loc>
<lastmod>2026-09-01T02:11:16.424Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_makealarm_spanish_sprinkle</loc>
<lastmod>2026-09-01T02:10:54.628Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_engrdrawings_spanish_sprinkle</loc>
<lastmod>2026-09-01T02:10:56.006Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spoolracers_spanish_sprinkle</loc>
<lastmod>2026-09-01T02:11:12.286Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_cleandrink_activity1</loc>
<lastmod>2026-09-01T02:02:19.016Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_hotchocolate_activity1</loc>
<lastmod>2026-09-01T01:59:36.714Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_sensor_lesson01_activity1</loc>
<lastmod>2026-09-01T02:07:01.017Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ewh_pump_activity1</loc>
<lastmod>2026-09-01T02:06:29.951Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/engineer_a_sneaker</loc>
<lastmod>2026-09-01T02:09:44.742Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson06_activity1</loc>
<lastmod>2026-09-01T02:09:30.679Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_pend_lesson01_activity1</loc>
<lastmod>2026-09-01T02:09:19.513Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_service_activity02</loc>
<lastmod>2026-09-01T02:09:09.585Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_engineering_in_reverse</loc>
<lastmod>2026-09-01T02:08:45.631Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_japan_activity1</loc>
<lastmod>2026-09-01T02:06:51.699Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_consenergy_rde_act</loc>
<lastmod>2026-09-01T02:04:40.122Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_platetectonics_activity1</loc>
<lastmod>2026-09-01T02:03:23.101Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_strongholds_activity1</loc>
<lastmod>2026-09-01T02:03:06.371Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_designingfordisaster_activity1</loc>
<lastmod>2026-09-01T02:02:34.018Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson07_activity2</loc>
<lastmod>2026-09-01T02:02:22.394Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson03_activity1</loc>
<lastmod>2026-09-01T02:02:19.818Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_convshoes_lesson01_activity1</loc>
<lastmod>2026-09-01T02:02:09.240Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_kite_activity1</loc>
<lastmod>2026-09-01T02:02:06.030Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_catapult_lesson01_activity1</loc>
<lastmod>2026-09-01T02:02:02.760Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/sneakers</loc>
<lastmod>2026-09-01T02:01:57.277Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_heartvalves_lesson01_activity1</loc>
<lastmod>2026-09-01T02:01:56.338Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_amusement_park_ride</loc>
<lastmod>2026-09-01T02:01:55.584Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_curiosity_lesson01_activity1</loc>
<lastmod>2026-09-01T02:01:45.431Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_heavy_activity1</loc>
<lastmod>2026-09-01T02:01:05.845Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_floppy_lesson02_activity1</loc>
<lastmod>2026-09-01T02:01:04.644Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_weather_lesson05_activity1</loc>
<lastmod>2026-09-01T02:00:49.450Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson06_activity1</loc>
<lastmod>2026-09-01T02:00:47.975Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_spag_act_joy</loc>
<lastmod>2026-09-01T02:00:17.248Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_kapablocks_activity1</loc>
<lastmod>2026-09-01T02:00:10.117Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/jhu_cnetworks_lesson02_activity1</loc>
<lastmod>2026-09-01T01:59:41.032Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_eggdrop_activity1</loc>
<lastmod>2026-09-01T01:59:20.731Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_heartbloodflow_act</loc>
<lastmod>2026-09-01T01:59:12.967Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_staticcrane_activity1</loc>
<lastmod>2026-09-01T01:58:50.673Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_coinsorter_activity1</loc>
<lastmod>2026-09-01T01:58:47.049Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/chair_design</loc>
<lastmod>2026-09-01T01:58:07.433Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/build_a_scale_model</loc>
<lastmod>2026-09-01T01:57:56.340Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_sailcars_activity1</loc>
<lastmod>2026-09-01T01:57:35.562Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_derby_activity1</loc>
<lastmod>2026-09-01T01:57:18.433Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_heattransfer_smary_act</loc>
<lastmod>2026-09-01T01:57:16.856Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/playground_sue</loc>
<lastmod>2026-09-01T01:56:55.308Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_straw_tower_activity1</loc>
<lastmod>2026-09-01T01:56:50.791Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/tower_investigation</loc>
<lastmod>2026-09-01T01:56:50.092Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/afterlife_sue</loc>
<lastmod>2026-09-01T01:56:39.807Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/able_sue</loc>
<lastmod>2026-09-01T01:56:29.886Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_lifescience_lesson03_activity1</loc>
<lastmod>2026-09-01T01:56:08.316Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_findingepicenters_activity1</loc>
<lastmod>2026-09-01T01:55:06.801Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_hybrid_design_activity4</loc>
<lastmod>2026-09-01T01:54:39.992Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson10_activity1</loc>
<lastmod>2026-09-01T01:53:13.102Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson10_activity1</loc>
<lastmod>2026-09-01T01:53:10.090Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_challenges_lesson02_activity2</loc>
<lastmod>2026-09-01T01:53:04.072Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simple_lesson06_activity1</loc>
<lastmod>2026-09-01T01:52:06.812Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_foodiron_music_act</loc>
<lastmod>2026-09-01T01:51:30.285Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_challenges_lesson02_activity3</loc>
<lastmod>2026-09-01T01:51:11.961Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_flyingtshirt_lesson01_activity1</loc>
<lastmod>2026-09-01T01:50:44.227Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_weather_lesson01_activity1</loc>
<lastmod>2026-09-01T01:49:00.075Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spoolracers_sprinkle</loc>
<lastmod>2026-09-01T02:11:30.592Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_towerinvestigation_sprinkle</loc>
<lastmod>2026-09-01T02:11:29.966Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_wheeling</loc>
<lastmod>2026-09-01T02:11:29.294Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_motor</loc>
<lastmod>2026-09-01T02:11:27.373Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spaghettibridge_sprinkle</loc>
<lastmod>2026-09-01T02:11:26.686Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_chromatography</loc>
<lastmod>2026-09-01T02:11:26.002Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_anemometer_sprinkle1</loc>
<lastmod>2026-09-01T02:11:25.339Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_sugarspill</loc>
<lastmod>2026-09-01T02:11:24.666Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_yogurtspeakers</loc>
<lastmod>2026-09-01T02:11:23.971Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_justbreathe</loc>
<lastmod>2026-09-01T02:11:23.287Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_catapult</loc>
<lastmod>2026-09-01T02:11:22.591Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_squeeze</loc>
<lastmod>2026-09-01T02:11:21.904Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_prosthetic</loc>
<lastmod>2026-09-01T02:11:21.186Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_lightyourway</loc>
<lastmod>2026-09-01T02:11:20.479Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_hovercraft</loc>
<lastmod>2026-09-01T02:11:19.780Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electromagnet_sprinkle1</loc>
<lastmod>2026-09-01T02:11:19.077Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/sugarspill_spanish</loc>
<lastmod>2026-09-01T02:11:18.369Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/lightyourway_spanish</loc>
<lastmod>2026-09-01T02:11:17.686Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/justbreathe_spanish</loc>
<lastmod>2026-09-01T02:11:17.033Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/electromagnet_spanish</loc>
<lastmod>2026-09-01T02:11:15.089Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/motor_spanish</loc>
<lastmod>2026-09-01T02:11:14.368Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/anemometer_spanish</loc>
<lastmod>2026-09-01T02:11:13.670Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/chromatography_spanish</loc>
<lastmod>2026-09-01T02:11:13.009Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/yogurtspeakers_spanish</loc>
<lastmod>2026-09-01T02:11:11.637Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/prosthetic_spanish</loc>
<lastmod>2026-09-01T02:11:10.342Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/catapult_spanish</loc>
<lastmod>2026-09-01T02:11:09.647Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/squeeze_spanish</loc>
<lastmod>2026-09-01T02:11:08.932Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rocket_sprinkle1</loc>
<lastmod>2026-09-01T02:11:08.285Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_clayboats</loc>
<lastmod>2026-09-01T02:11:07.586Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_creepysillyputty</loc>
<lastmod>2026-09-01T02:11:06.835Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_fancyfeet</loc>
<lastmod>2026-09-01T02:11:06.173Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_hangingaround</loc>
<lastmod>2026-09-01T02:11:05.518Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_conduct</loc>
<lastmod>2026-09-01T02:11:04.830Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_engrdrawings_sprinkle</loc>
<lastmod>2026-09-01T02:11:02.760Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_makealarm_sprinkle</loc>
<lastmod>2026-09-01T02:11:02.111Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_ptarmigan</loc>
<lastmod>2026-09-01T02:11:01.489Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_waterwheel</loc>
<lastmod>2026-09-01T02:11:00.834Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_pressure</loc>
<lastmod>2026-09-01T02:11:00.138Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_aquathrust</loc>
<lastmod>2026-09-01T02:10:59.441Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_catchwater</loc>
<lastmod>2026-09-01T02:10:58.730Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/hangingaround_spanish</loc>
<lastmod>2026-09-01T02:10:58.056Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/fancyfeet_spanish</loc>
<lastmod>2026-09-01T02:10:57.438Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/creepysillyputty_spanish</loc>
<lastmod>2026-09-01T02:10:56.656Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ptarmigan_spanish</loc>
<lastmod>2026-09-01T02:10:55.293Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/willitconduct_spanish</loc>
<lastmod>2026-09-01T02:10:53.884Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wheeling_spanish</loc>
<lastmod>2026-09-01T02:10:53.193Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rocket_spanish</loc>
<lastmod>2026-09-01T02:10:52.533Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/waterwheel_spanish</loc>
<lastmod>2026-09-01T02:10:51.844Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/pressure_spanish</loc>
<lastmod>2026-09-01T02:10:51.102Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/hovercraft_spanish</loc>
<lastmod>2026-09-01T02:10:50.463Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/clayboats_spanish</loc>
<lastmod>2026-09-01T02:10:49.754Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/catchthewater_spanish</loc>
<lastmod>2026-09-01T02:10:49.043Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/aquathrust_spanish</loc>
<lastmod>2026-09-01T02:10:48.370Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson04_activity2</loc>
<lastmod>2026-09-01T02:09:50.133Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_cellresp_mary_act</loc>
<lastmod>2026-09-01T02:09:49.355Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson09_activity3</loc>
<lastmod>2026-09-01T02:09:47.103Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson02_activity1</loc>
<lastmod>2026-09-01T02:09:45.508Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson02_activity2</loc>
<lastmod>2026-09-01T02:09:43.979Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson03_activity2</loc>
<lastmod>2026-09-01T02:09:43.203Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_brightidea_activity1</loc>
<lastmod>2026-09-01T02:09:39.086Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spect_activity7</loc>
<lastmod>2026-09-01T02:09:35.824Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst_feelstress_activity1</loc>
<lastmod>2026-09-01T02:09:34.716Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_circuits_and_ohm_activity1</loc>
<lastmod>2026-09-01T02:09:31.483Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_design_lesson01_activity1</loc>
<lastmod>2026-09-01T02:09:24.312Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_bug_lesson01_activity1</loc>
<lastmod>2026-09-01T02:09:23.315Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cmu_rube_activity1</loc>
<lastmod>2026-09-01T02:09:20.672Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_space8_lesson01_activity1</loc>
<lastmod>2026-09-01T02:09:17.419Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_crutches_activity</loc>
<lastmod>2026-09-01T02:09:16.657Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_rollercoaster_music_act</loc>
<lastmod>2026-09-01T02:09:11.292Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson04_activity1</loc>
<lastmod>2026-09-01T02:09:08.398Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_service_activity03</loc>
<lastmod>2026-09-01T02:09:06.185Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_service_activity01</loc>
<lastmod>2026-09-01T02:09:05.195Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson05_activity1</loc>
<lastmod>2026-09-01T02:09:02.456Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson05_activity1</loc>
<lastmod>2026-09-01T02:08:57.330Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_protect_activity1</loc>
<lastmod>2026-09-01T02:08:47.145Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/invent_a_backscratcher</loc>
<lastmod>2026-09-01T02:08:45.041Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_seismicw_lesson01_activity1</loc>
<lastmod>2026-09-01T02:08:23.477Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson08_activity3</loc>
<lastmod>2026-09-01T02:08:19.204Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rooftop_lesson01_activity1</loc>
<lastmod>2026-09-01T02:08:11.768Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson02_activity3</loc>
<lastmod>2026-09-01T02:08:02.924Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson05_activity1</loc>
<lastmod>2026-09-01T02:07:58.768Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_air_pollution_activity</loc>
<lastmod>2026-09-01T02:07:58.161Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_sun_lesson01_activity1</loc>
<lastmod>2026-09-01T02:07:47.825Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson04_activity1</loc>
<lastmod>2026-09-01T02:07:47.006Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simple_lesson04_activity1</loc>
<lastmod>2026-09-01T02:07:45.584Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson07_activity1</loc>
<lastmod>2026-09-01T02:07:44.066Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_sunflower_mary_act</loc>
<lastmod>2026-09-01T02:07:36.301Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_desal_lesson01_activity1</loc>
<lastmod>2026-09-01T02:07:35.379Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_biomimicry_activity5</loc>
<lastmod>2026-09-01T02:07:28.595Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_solar_lesson01_activity2</loc>
<lastmod>2026-09-01T02:07:13.606Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_brid_lesson01_activity1</loc>
<lastmod>2026-09-01T02:07:08.515Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson03_activity1</loc>
<lastmod>2026-09-01T02:07:06.357Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_gaitway_lesson01_activity1</loc>
<lastmod>2026-09-01T02:07:05.439Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_walk_lesson01_activity1</loc>
<lastmod>2026-09-01T02:07:04.646Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_magnetic_launcher_activity1</loc>
<lastmod>2026-09-01T02:07:03.940Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_ehd_thrusters_activity1</loc>
<lastmod>2026-09-01T02:07:03.309Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/utpa_perfectwaves_activity1</loc>
<lastmod>2026-09-01T02:06:56.425Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_dams_lesson05_activity1</loc>
<lastmod>2026-09-01T02:06:45.788Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_surg_lesson02_activity1</loc>
<lastmod>2026-09-01T02:06:42.368Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_dams_lesson07_activity1</loc>
<lastmod>2026-09-01T02:06:41.525Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson02_activity3</loc>
<lastmod>2026-09-01T02:06:36.180Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_balloons_lesson01_activity1</loc>
<lastmod>2026-09-01T02:06:35.466Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson04_activity3</loc>
<lastmod>2026-09-01T02:06:31.933Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/gat_visual_art_lesson01_activity1</loc>
<lastmod>2026-09-01T02:06:29.190Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_piezo_lesson01_activity1</loc>
<lastmod>2026-09-01T02:06:28.329Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_soundandlight_lesson8_activity1</loc>
<lastmod>2026-09-01T02:06:20.465Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_asteroid_lesson5_activity1_tg</loc>
<lastmod>2026-09-01T02:06:19.626Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity2_energy_conversion</loc>
<lastmod>2026-09-01T02:06:17.870Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst_environmental_lesson02_activity2</loc>
<lastmod>2026-09-01T02:05:37.754Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucla_metal_activity1</loc>
<lastmod>2026-09-01T02:05:36.241Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_surg_lesson03_activity1</loc>
<lastmod>2026-09-01T02:05:33.417Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_measurement_lesson01_activity1</loc>
<lastmod>2026-09-01T02:05:24.664Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson02_activity2</loc>
<lastmod>2026-09-01T02:05:17.774Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_microbes_lesson01_activity2</loc>
<lastmod>2026-09-01T02:05:17.122Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spect_activity1</loc>
<lastmod>2026-09-01T02:05:00.343Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson07_activity2</loc>
<lastmod>2026-09-01T02:04:46.129Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson09_activity2</loc>
<lastmod>2026-09-01T02:04:41.413Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_housing_lesson02_activity1</loc>
<lastmod>2026-09-01T02:04:03.990Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst_environmental_lesson03_activity2</loc>
<lastmod>2026-09-01T02:03:43.430Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_cells_lesson02_activity1</loc>
<lastmod>2026-09-01T02:03:42.471Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_surfactants_act4</loc>
<lastmod>2026-09-01T02:03:41.743Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson09_activity1</loc>
<lastmod>2026-09-01T02:03:38.953Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/jhu_cnetworks_lesson01_activity1</loc>
<lastmod>2026-09-01T02:03:38.103Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_dams_lesson03_activity1</loc>
<lastmod>2026-09-01T02:03:37.220Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_virus_mary_act</loc>
<lastmod>2026-09-01T02:03:36.495Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_lifescience_lesson01_activity1</loc>
<lastmod>2026-09-01T02:03:35.602Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/utpa_breezy_activity1</loc>
<lastmod>2026-09-01T02:03:34.989Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson10_activity5</loc>
<lastmod>2026-09-01T02:03:29.806Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson04_activity1</loc>
<lastmod>2026-09-01T02:03:27.341Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_liftoff_lesson01_activity1</loc>
<lastmod>2026-09-01T02:03:25.795Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson01_activity2</loc>
<lastmod>2026-09-01T02:03:24.890Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_heat_activity</loc>
<lastmod>2026-09-01T02:03:22.424Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_crystals_lesson01_activity1</loc>
<lastmod>2026-09-01T02:03:21.583Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson05_activity1</loc>
<lastmod>2026-09-01T02:03:20.658Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_newton_lesson03_activity1</loc>
<lastmod>2026-09-01T02:03:19.668Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson03_activity1</loc>
<lastmod>2026-09-01T02:03:18.724Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_housing_lesson01_activity1</loc>
<lastmod>2026-09-01T02:03:17.895Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson04_activity1</loc>
<lastmod>2026-09-01T02:03:16.378Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_space8_lesson02_activity1</loc>
<lastmod>2026-09-01T02:03:15.623Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_mri_act_less_1</loc>
<lastmod>2026-09-01T02:03:14.695Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst_environmental_lesson03_activity1</loc>
<lastmod>2026-09-01T02:03:13.598Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_accelerometer_lesson02_activity1</loc>
<lastmod>2026-09-01T02:03:12.477Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_pveff_lesson02_activity1</loc>
<lastmod>2026-09-01T02:03:11.584Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/design_a_parachute</loc>
<lastmod>2026-09-01T02:03:10.835Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst_environmental_lesson02_activity3</loc>
<lastmod>2026-09-01T02:03:09.871Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_pveff_lesson01_activity1</loc>
<lastmod>2026-09-01T02:03:05.169Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ball_bounce_experiment</loc>
<lastmod>2026-09-01T02:03:04.416Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simp_machines_lesson03_activity1</loc>
<lastmod>2026-09-01T02:03:03.557Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson08_activity2</loc>
<lastmod>2026-09-01T02:03:02.730Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucla_superball_activity1</loc>
<lastmod>2026-09-01T02:02:58.907Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity3_energy_choices_game</loc>
<lastmod>2026-09-01T02:02:57.453Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_angularvelocity_activity1</loc>
<lastmod>2026-09-01T02:02:55.542Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mix_lesson2_activity1</loc>
<lastmod>2026-09-01T02:02:54.720Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity1_energy_intelligence</loc>
<lastmod>2026-09-01T02:02:52.850Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson04_activity2</loc>
<lastmod>2026-09-01T02:02:49.781Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson03_activity1</loc>
<lastmod>2026-09-01T02:02:48.895Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simp_machines_lesson02_activity1</loc>
<lastmod>2026-09-01T02:02:48.010Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_friction_smary_act</loc>
<lastmod>2026-09-01T02:02:47.162Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_egg_drop_activity1</loc>
<lastmod>2026-09-01T02:02:45.009Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity1_forms_states</loc>
<lastmod>2026-09-01T02:02:44.143Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity3_household_light_bulbs</loc>
<lastmod>2026-09-01T02:02:43.170Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_human_power_activity</loc>
<lastmod>2026-09-01T02:02:42.285Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_problem_solving_activity2</loc>
<lastmod>2026-09-01T02:02:41.505Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity2_energy_sources_research</loc>
<lastmod>2026-09-01T02:02:40.643Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity1_renewable</loc>
<lastmod>2026-09-01T02:02:39.841Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity1_efficiency_electromech</loc>
<lastmod>2026-09-01T02:02:38.838Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity3_energy_systems</loc>
<lastmod>2026-09-01T02:02:37.961Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity2_energy_carousel</loc>
<lastmod>2026-09-01T02:02:37.270Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity4_energy_perspectives</loc>
<lastmod>2026-09-01T02:02:36.497Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity2_efficiency_heating</loc>
<lastmod>2026-09-01T02:02:35.629Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity1_household_watt_meter</loc>
<lastmod>2026-09-01T02:02:34.805Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson06_activity3</loc>
<lastmod>2026-09-01T02:02:31.451Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_hospital_activity1</loc>
<lastmod>2026-09-01T02:02:30.852Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_sound_lesson02_activity1</loc>
<lastmod>2026-09-01T02:02:27.785Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson07_activity1</loc>
<lastmod>2026-09-01T02:02:26.965Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_soundandlight_lesson1_activity1</loc>
<lastmod>2026-09-01T02:02:26.105Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson01_activity1</loc>
<lastmod>2026-09-01T02:02:25.258Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson09_activity3</loc>
<lastmod>2026-09-01T02:02:23.551Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csu_polymer_lesson01_activity1</loc>
<lastmod>2026-09-01T02:02:21.605Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_empathy_activity4</loc>
<lastmod>2026-09-01T02:02:20.685Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_boom_activity1</loc>
<lastmod>2026-09-01T02:02:18.332Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucsb_robotics_activity1</loc>
<lastmod>2026-09-01T02:02:16.999Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_polymer_lesson01_activity1</loc>
<lastmod>2026-09-01T02:02:16.146Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_gravityfed_activity1</loc>
<lastmod>2026-09-01T02:02:15.311Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/insect_trap_activity</loc>
<lastmod>2026-09-01T02:02:14.668Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_sanfran_activity1</loc>
<lastmod>2026-09-01T02:02:14.060Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/earthquake_city</loc>
<lastmod>2026-09-01T02:02:13.361Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_density_mary_act</loc>
<lastmod>2026-09-01T02:02:12.570Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_yeast_mary_act</loc>
<lastmod>2026-09-01T02:02:11.482Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_hockey_music_act</loc>
<lastmod>2026-09-01T02:02:10.733Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_bycatchunit_musc_act2</loc>
<lastmod>2026-09-01T02:02:10.027Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/tetrahedral_kites</loc>
<lastmod>2026-09-01T02:02:08.580Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson05_activity2</loc>
<lastmod>2026-09-01T02:02:07.848Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_bycatchunit_musc_act</loc>
<lastmod>2026-09-01T02:02:07.129Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ewh_suitup_activity1</loc>
<lastmod>2026-09-01T02:02:05.235Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson01_activity1</loc>
<lastmod>2026-09-01T02:02:03.626Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_fluidmechanics_lesson02_activity1</loc>
<lastmod>2026-09-01T02:02:01.858Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/bicycle_helmet_activity</loc>
<lastmod>2026-09-01T02:02:00.380Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mars_lesson05_activity1</loc>
<lastmod>2026-09-01T02:01:59.526Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson05_activity1</loc>
<lastmod>2026-09-01T02:01:58.579Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_solarcity_activity1</loc>
<lastmod>2026-09-01T02:01:54.007Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simple_lesson01_activity1</loc>
<lastmod>2026-09-01T02:01:53.151Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/the_best_insulator</loc>
<lastmod>2026-09-01T02:01:51.461Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_intro_lesson01_activity1</loc>
<lastmod>2026-09-01T02:01:50.618Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_big_chill_activity1</loc>
<lastmod>2026-09-01T02:01:50.009Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_encoders_activity1</loc>
<lastmod>2026-09-01T02:01:49.211Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_power_activity1</loc>
<lastmod>2026-09-01T02:01:44.526Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_empathy_activity1</loc>
<lastmod>2026-09-01T02:01:43.639Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/gat_mixture_activity1</loc>
<lastmod>2026-09-01T02:01:41.805Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_obi_activity1</loc>
<lastmod>2026-09-01T02:01:41.084Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_zero_energy</loc>
<lastmod>2026-09-01T02:01:40.247Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_housing_lesson03_activity1</loc>
<lastmod>2026-09-01T02:01:37.874Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson05_activity3</loc>
<lastmod>2026-09-01T02:01:35.163Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson09_activity4</loc>
<lastmod>2026-09-01T02:01:34.067Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_probe_activity1</loc>
<lastmod>2026-09-01T02:01:33.354Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson07_activity3</loc>
<lastmod>2026-09-01T02:01:32.380Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_molecules_activity1</loc>
<lastmod>2026-09-01T02:01:31.628Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_photo_mary_act</loc>
<lastmod>2026-09-01T02:01:30.942Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simp_machines_lesson04_activity1</loc>
<lastmod>2026-09-01T02:01:29.992Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_beam_activity1</loc>
<lastmod>2026-09-01T02:01:28.542Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_graphing_activity1</loc>
<lastmod>2026-09-01T02:01:27.887Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/safety_sue</loc>
<lastmod>2026-09-01T02:01:27.228Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_trusses_lesson01_activity1</loc>
<lastmod>2026-09-01T02:01:24.010Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson06_activity1</loc>
<lastmod>2026-09-01T02:01:23.172Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_soundandlight_lesson5_activity1</loc>
<lastmod>2026-09-01T02:01:14.435Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/focus_on_fabrics</loc>
<lastmod>2026-09-01T02:01:12.476Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_computerprogram_lesson01_activity1</loc>
<lastmod>2026-09-01T02:01:11.643Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mag_lesson1_activity1</loc>
<lastmod>2026-09-01T02:01:10.792Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_organic_activity1</loc>
<lastmod>2026-09-01T02:01:09.243Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_dams_lesson08_activity1</loc>
<lastmod>2026-09-01T02:01:07.413Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_windturbine_activity1</loc>
<lastmod>2026-09-01T02:01:06.584Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_erosion_activity1</loc>
<lastmod>2026-09-01T02:00:51.173Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_asteroid_lesson1_activity1_tg</loc>
<lastmod>2026-09-01T02:00:46.673Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson02_activity2</loc>
<lastmod>2026-09-01T02:00:45.682Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/make_an_alarm</loc>
<lastmod>2026-09-01T02:00:44.607Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson09_activity1</loc>
<lastmod>2026-09-01T02:00:43.550Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_genetics_mary_act</loc>
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</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson05_activity1</loc>
<lastmod>2026-09-01T02:00:41.085Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson06_activity2</loc>
<lastmod>2026-09-01T02:00:40.128Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/make_recycled_paper</loc>
<lastmod>2026-09-01T02:00:39.509Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/utpa_sensors_activity1</loc>
<lastmod>2026-09-01T02:00:38.859Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_stormwater_lesson02_activity4</loc>
<lastmod>2026-09-01T02:00:37.806Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_stormwater_lesson01_activity1</loc>
<lastmod>2026-09-01T02:00:36.722Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_flocculant_activity01</loc>
<lastmod>2026-09-01T02:00:35.974Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usc_forcesgraphing</loc>
<lastmod>2026-09-01T02:00:35.269Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_sensorswork_lesson06_activity1</loc>
<lastmod>2026-09-01T02:00:34.213Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_sensorswork_lesson05_activity1</loc>
<lastmod>2026-09-01T02:00:32.938Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_sensorswork_lesson04_activity1</loc>
<lastmod>2026-09-01T02:00:31.690Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_sensorswork_lesson03_activity1</loc>
<lastmod>2026-09-01T02:00:30.474Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_ourbodies_lesson03_activity5</loc>
<lastmod>2026-09-01T02:00:29.290Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_ourbodies_lesson02_activity3</loc>
<lastmod>2026-09-01T02:00:28.259Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_ourbodies_lesson02_activity2</loc>
<lastmod>2026-09-01T02:00:27.179Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_ourbodies_lesson01_activity1</loc>
<lastmod>2026-09-01T02:00:25.970Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_dig_mapping_activity1</loc>
<lastmod>2026-09-01T02:00:24.006Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_genetic_lesson01_activity1</loc>
<lastmod>2026-09-01T02:00:23.237Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_decomposers_mary_act</loc>
<lastmod>2026-09-01T02:00:22.520Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_sound_lesson01_activity1</loc>
<lastmod>2026-09-01T02:00:21.533Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_hybrid_design_activity2</loc>
<lastmod>2026-09-01T02:00:20.568Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_cleanupmess_act4</loc>
<lastmod>2026-09-01T02:00:19.782Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mining_activity1</loc>
<lastmod>2026-09-01T02:00:17.801Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson01_activity2</loc>
<lastmod>2026-09-01T02:00:16.462Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/njit_paper_activity1</loc>
<lastmod>2026-09-01T02:00:15.886Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spect_activity2</loc>
<lastmod>2026-09-01T02:00:14.421Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_biorecycling_lesson01_activity1</loc>
<lastmod>2026-09-01T02:00:13.637Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson06_activity2</loc>
<lastmod>2026-09-01T02:00:12.847Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usc_speakers_activity1</loc>
<lastmod>2026-09-01T02:00:11.142Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mars_lesson04_activity1</loc>
<lastmod>2026-09-01T02:00:09.277Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson02_activity3</loc>
<lastmod>2026-09-01T02:00:08.425Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson08_activity2</loc>
<lastmod>2026-09-01T02:00:07.618Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_surg_lesson01_activity2</loc>
<lastmod>2026-09-01T02:00:06.337Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_creative_activity1</loc>
<lastmod>2026-09-01T02:00:05.065Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_sailcars_activity1</loc>
<lastmod>2026-09-01T02:00:04.098Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/design_a_recycling_game</loc>
<lastmod>2026-09-01T02:00:03.358Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson05_activity2</loc>
<lastmod>2026-09-01T02:00:01.145Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_challenges_lesson02_activity4</loc>
<lastmod>2026-09-01T01:59:59.263Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_code_sue</loc>
<lastmod>2026-09-01T01:59:58.647Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_solarcar_tech_act</loc>
<lastmod>2026-09-01T01:59:57.952Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity2_household_audit</loc>
<lastmod>2026-09-01T01:59:57.070Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson2_activity1</loc>
<lastmod>2026-09-01T01:59:56.268Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson06_activity1</loc>
<lastmod>2026-09-01T01:59:55.479Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson04_activity3</loc>
<lastmod>2026-09-01T01:59:54.561Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson01_activity2</loc>
<lastmod>2026-09-01T01:59:53.156Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson04_activity1</loc>
<lastmod>2026-09-01T01:59:52.417Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson5_activity1</loc>
<lastmod>2026-09-01T01:59:51.506Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson01_activity2</loc>
<lastmod>2026-09-01T01:59:50.471Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson08_activity4</loc>
<lastmod>2026-09-01T01:59:49.665Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson02_activity1</loc>
<lastmod>2026-09-01T01:59:48.907Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_weather_lesson02_activity1</loc>
<lastmod>2026-09-01T01:59:47.034Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usu_ethics_activity1</loc>
<lastmod>2026-09-01T01:59:44.978Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_filtering_lesson01_activity1</loc>
<lastmod>2026-09-01T01:59:44.258Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/which_roof_is_tops</loc>
<lastmod>2026-09-01T01:59:43.489Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson06_activity1</loc>
<lastmod>2026-09-01T01:59:42.737Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mars_lesson03_activity1</loc>
<lastmod>2026-09-01T01:59:41.878Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_design_lesson01_activity2</loc>
<lastmod>2026-09-01T01:59:40.149Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson08_activity1</loc>
<lastmod>2026-09-01T01:59:39.301Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_heat_lesson01_activity1</loc>
<lastmod>2026-09-01T01:59:38.513Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_accelerometer_lesson01_activity1</loc>
<lastmod>2026-09-01T01:59:37.581Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_bio_lesson03_activity1</loc>
<lastmod>2026-09-01T01:59:35.853Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_trebuchet_activity1</loc>
<lastmod>2026-09-01T01:59:35.271Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson02_activity2</loc>
<lastmod>2026-09-01T01:59:34.479Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_bones_lesson01_activity2</loc>
<lastmod>2026-09-01T01:59:33.576Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_bones_lesson01_activity1</loc>
<lastmod>2026-09-01T01:59:32.555Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson09_activity1</loc>
<lastmod>2026-09-01T01:59:31.664Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_dams_lesson02_activity1</loc>
<lastmod>2026-09-01T01:59:30.862Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_getingear_activity1</loc>
<lastmod>2026-09-01T01:59:29.352Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_light_activity1</loc>
<lastmod>2026-09-01T01:59:28.707Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umn_pneumatics_activity01</loc>
<lastmod>2026-09-01T01:59:28.021Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uva_eardevice_act</loc>
<lastmod>2026-09-01T01:59:26.527Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst_environmental_lesson02_activity1</loc>
<lastmod>2026-09-01T01:59:25.750Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson01_activity2</loc>
<lastmod>2026-09-01T01:59:25.000Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson05_activity2</loc>
<lastmod>2026-09-01T01:59:23.323Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson02_activity2</loc>
<lastmod>2026-09-01T01:59:22.475Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson5_activity2</loc>
<lastmod>2026-09-01T01:59:19.746Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_detdrawings_lesson01_activity1</loc>
<lastmod>2026-09-01T01:59:17.686Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_solarenergy_lesson01_activity1</loc>
<lastmod>2026-09-01T01:59:16.709Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_dimension_tech_act</loc>
<lastmod>2026-09-01T01:59:15.731Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_valvedesign_tech_act</loc>
<lastmod>2026-09-01T01:59:14.838Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_feelbetter_lesson02_activity_02</loc>
<lastmod>2026-09-01T01:59:14.086Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucla_lava_activity01</loc>
<lastmod>2026-09-01T01:59:12.064Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_feelbetter_lesson01_activity01</loc>
<lastmod>2026-09-01T01:59:11.108Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_friction_smary_act2</loc>
<lastmod>2026-09-01T01:59:10.134Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson04_activity1</loc>
<lastmod>2026-09-01T01:59:08.966Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson06_activity1</loc>
<lastmod>2026-09-01T01:59:08.030Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson02_activity1</loc>
<lastmod>2026-09-01T01:59:07.220Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_creative_activity5</loc>
<lastmod>2026-09-01T01:59:06.289Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson05_activity1</loc>
<lastmod>2026-09-01T01:59:04.218Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_housing_lesson01_activity2</loc>
<lastmod>2026-09-01T01:59:02.805Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson06_activity2</loc>
<lastmod>2026-09-01T01:59:01.983Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_troll_lesson02_activity1</loc>
<lastmod>2026-09-01T01:59:01.257Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_solaroven_tech_act</loc>
<lastmod>2026-09-01T01:59:00.338Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson05_activity3</loc>
<lastmod>2026-09-01T01:58:59.251Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson09_activity1</loc>
<lastmod>2026-09-01T01:58:58.250Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_hydraulic_arm_challenge</loc>
<lastmod>2026-09-01T01:58:57.635Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_intro_lesson03_activity1</loc>
<lastmod>2026-09-01T01:58:55.798Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson10_activity1</loc>
<lastmod>2026-09-01T01:58:55.006Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson04_activity1</loc>
<lastmod>2026-09-01T01:58:54.209Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_brid_lesson01_activity2</loc>
<lastmod>2026-09-01T01:58:53.369Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson01_activity1</loc>
<lastmod>2026-09-01T01:58:52.537Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_creative_activity2</loc>
<lastmod>2026-09-01T01:58:49.745Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_surfactants_act2</loc>
<lastmod>2026-09-01T01:58:45.415Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_matlsci_lesson01_activity1</loc>
<lastmod>2026-09-01T01:58:44.704Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson06_activity2</loc>
<lastmod>2026-09-01T01:58:43.737Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson06_activity1</loc>
<lastmod>2026-09-01T01:58:42.880Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson06_activity1</loc>
<lastmod>2026-09-01T01:58:42.070Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_sep_mixtures_activity1</loc>
<lastmod>2026-09-01T01:58:41.351Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_tower_tech_act</loc>
<lastmod>2026-09-01T01:58:39.977Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson04_activity3</loc>
<lastmod>2026-09-01T01:58:37.815Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uconn_gliders_activity1</loc>
<lastmod>2026-09-01T01:58:37.228Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson07_activity1</loc>
<lastmod>2026-09-01T01:58:36.474Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/bones_sue</loc>
<lastmod>2026-09-01T01:58:35.773Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_insulation_activity1</loc>
<lastmod>2026-09-01T01:58:35.162Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson03_activity2</loc>
<lastmod>2026-09-01T01:58:34.382Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_boat_mary_act</loc>
<lastmod>2026-09-01T01:58:33.312Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_art_lesson01_activity2</loc>
<lastmod>2026-09-01T01:58:32.625Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson02_activity1</loc>
<lastmod>2026-09-01T01:58:31.809Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_lifescience_lesson04_activity1</loc>
<lastmod>2026-09-01T01:58:31.112Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson03_activity1</loc>
<lastmod>2026-09-01T01:58:30.366Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_membrane_activity3</loc>
<lastmod>2026-09-01T01:58:29.565Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mars_lesson01_activity1</loc>
<lastmod>2026-09-01T01:58:28.786Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mag_lesson2_activity1</loc>
<lastmod>2026-09-01T01:58:27.997Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/colors_absorb_heat_better</loc>
<lastmod>2026-09-01T01:58:26.721Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_statesofmatter_activity1</loc>
<lastmod>2026-09-01T01:58:25.398Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/roofs_for_different_climates</loc>
<lastmod>2026-09-01T01:58:24.584Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_solar_lesson02_activity1</loc>
<lastmod>2026-09-01T01:58:23.724Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_housing_lesson05_activity1</loc>
<lastmod>2026-09-01T01:58:22.884Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rock_lesson03_activity1</loc>
<lastmod>2026-09-01T01:58:22.062Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rock_lesson02_activity1</loc>
<lastmod>2026-09-01T01:58:21.288Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson04_activity2</loc>
<lastmod>2026-09-01T01:58:20.344Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson04_activity2</loc>
<lastmod>2026-09-01T01:58:19.522Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simp_machines_lesson05_activity1</loc>
<lastmod>2026-09-01T01:58:18.764Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson06_activity2</loc>
<lastmod>2026-09-01T01:58:17.848Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson03_activity2</loc>
<lastmod>2026-09-01T01:58:17.042Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_fracture_lesson01_activity1</loc>
<lastmod>2026-09-01T01:58:15.794Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson02_activity1</loc>
<lastmod>2026-09-01T01:58:12.042Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_lorax_activity1</loc>
<lastmod>2026-09-01T01:58:10.825Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/water_filtration</loc>
<lastmod>2026-09-01T01:58:10.223Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/disassemble_a_click_pen</loc>
<lastmod>2026-09-01T01:58:09.648Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson01_activity1</loc>
<lastmod>2026-09-01T01:58:08.893Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson06_activity2</loc>
<lastmod>2026-09-01T01:58:08.038Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson10_activity1</loc>
<lastmod>2026-09-01T01:58:06.649Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_cells_lesson01_activity1</loc>
<lastmod>2026-09-01T01:58:05.883Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mix_lesson3_activity1</loc>
<lastmod>2026-09-01T01:58:05.124Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_permeability_activity1</loc>
<lastmod>2026-09-01T01:58:04.517Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_brid_lesson02_activity1</loc>
<lastmod>2026-09-01T01:58:03.694Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson04_activity1</loc>
<lastmod>2026-09-01T01:58:02.830Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/space_shelter</loc>
<lastmod>2026-09-01T01:58:02.183Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson01_activity1</loc>
<lastmod>2026-09-01T01:58:01.328Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_engrdrawings_activity01</loc>
<lastmod>2026-09-01T01:58:00.679Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_linear_activity1</loc>
<lastmod>2026-09-01T01:58:00.055Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson04_activity3</loc>
<lastmod>2026-09-01T01:57:59.107Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson01_activity1</loc>
<lastmod>2026-09-01T01:57:58.342Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_asteroid_lesson3_activity1_tg</loc>
<lastmod>2026-09-01T01:57:57.602Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_solar_lesson03_activity1</loc>
<lastmod>2026-09-01T01:57:55.458Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_bernoulli_lesson01_activity1</loc>
<lastmod>2026-09-01T01:57:54.505Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mix_lesson1_activity1</loc>
<lastmod>2026-09-01T01:57:53.736Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csu_reverse_activity1</loc>
<lastmod>2026-09-01T01:57:53.039Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_desal_lesson01_activity2</loc>
<lastmod>2026-09-01T01:57:52.125Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_latex_lesson02_activity1</loc>
<lastmod>2026-09-01T01:57:51.081Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_body_lesson01_activity1</loc>
<lastmod>2026-09-01T01:57:50.116Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice_density_activity1</loc>
<lastmod>2026-09-01T01:57:48.592Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_housing_lesson04_activity1</loc>
<lastmod>2026-09-01T01:57:47.782Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson2_activity4</loc>
<lastmod>2026-09-01T01:57:46.903Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_creative_activity4</loc>
<lastmod>2026-09-01T01:57:45.977Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_eureka_activity</loc>
<lastmod>2026-09-01T01:57:45.233Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson05_activity1</loc>
<lastmod>2026-09-01T01:57:44.458Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson02_activity1</loc>
<lastmod>2026-09-01T01:57:43.723Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_lightbalance_activity1</loc>
<lastmod>2026-09-01T01:57:43.101Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_challenges_lesson01_activity1</loc>
<lastmod>2026-09-01T01:57:41.855Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_noise_activity1</loc>
<lastmod>2026-09-01T01:57:41.070Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_mmm_activity1</loc>
<lastmod>2026-09-01T01:57:40.371Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mars_lesson02_activity1</loc>
<lastmod>2026-09-01T01:57:39.539Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson09_activity2</loc>
<lastmod>2026-09-01T01:57:36.523Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson02_activity1</loc>
<lastmod>2026-09-01T01:57:34.755Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/test_load</loc>
<lastmod>2026-09-01T01:57:32.958Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson04_activity2</loc>
<lastmod>2026-09-01T01:57:32.075Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_frictionforce_activity1</loc>
<lastmod>2026-09-01T01:57:31.468Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson03_activity4</loc>
<lastmod>2026-09-01T01:57:30.660Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_rocket_lesson01_activity1</loc>
<lastmod>2026-09-01T01:57:29.053Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_bio_lesson05_activity1</loc>
<lastmod>2026-09-01T01:57:26.122Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson03_activity2</loc>
<lastmod>2026-09-01T01:57:24.623Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson04_activity1</loc>
<lastmod>2026-09-01T01:57:23.891Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_nanoparticles_lesson03_activity1</loc>
<lastmod>2026-09-01T01:57:22.796Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson08_activity1</loc>
<lastmod>2026-09-01T01:57:20.694Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_fluidmechanics_lesson01_activity1</loc>
<lastmod>2026-09-01T01:57:19.238Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_bio_lesson02_activity1</loc>
<lastmod>2026-09-01T01:57:17.567Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson01_activity1</loc>
<lastmod>2026-09-01T01:57:15.874Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_oxygen_hydrogen_activity1</loc>
<lastmod>2026-09-01T01:57:15.193Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_intro_lesson04_activity1</loc>
<lastmod>2026-09-01T01:57:14.446Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson05_activity3</loc>
<lastmod>2026-09-01T01:57:13.564Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson06_activity3</loc>
<lastmod>2026-09-01T01:57:12.772Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson01_activity4</loc>
<lastmod>2026-09-01T01:57:11.550Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_weather_lesson04_activity1</loc>
<lastmod>2026-09-01T01:57:10.609Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/picframe_joy_act</loc>
<lastmod>2026-09-01T01:57:09.947Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson03_activity1</loc>
<lastmod>2026-09-01T01:57:09.150Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson03_activity3</loc>
<lastmod>2026-09-01T01:57:08.245Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_bridge_activity1</loc>
<lastmod>2026-09-01T01:57:07.609Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_ptarmigan_activity1</loc>
<lastmod>2026-09-01T01:57:05.712Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson02_activity2</loc>
<lastmod>2026-09-01T01:57:03.378Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson05_activity2</loc>
<lastmod>2026-09-01T01:57:02.612Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_surg_lesson04_activity2</loc>
<lastmod>2026-09-01T01:57:01.725Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_cutting_through_soil</loc>
<lastmod>2026-09-01T01:56:59.944Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_energy_experts_activity1</loc>
<lastmod>2026-09-01T01:56:59.332Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_opslime_activity1</loc>
<lastmod>2026-09-01T01:56:58.736Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_bridge_activity1</loc>
<lastmod>2026-09-01T01:56:57.936Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rube_goldberg_machine</loc>
<lastmod>2026-09-01T01:56:56.624Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/windchimes_sue</loc>
<lastmod>2026-09-01T01:56:54.486Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_birdhouse_act_joy</loc>
<lastmod>2026-09-01T01:56:53.906Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_lifescience_lesson03_activity2</loc>
<lastmod>2026-09-01T01:56:53.121Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_regionallocal_activity1</loc>
<lastmod>2026-09-01T01:56:52.383Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_smart_solar_activity1</loc>
<lastmod>2026-09-01T01:56:51.613Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_stresses_activity1</loc>
<lastmod>2026-09-01T01:56:49.254Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_curingcancer_activity1</loc>
<lastmod>2026-09-01T01:56:48.251Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_computerprogram_lesson04_activity1</loc>
<lastmod>2026-09-01T01:56:47.467Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/assistive_tech_sue</loc>
<lastmod>2026-09-01T01:56:46.909Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_computerprogram_lesson02_activity1</loc>
<lastmod>2026-09-01T01:56:44.072Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_creative_activity6</loc>
<lastmod>2026-09-01T01:56:43.052Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_hurricane_activity1</loc>
<lastmod>2026-09-01T01:56:42.085Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_rolling_blackouts</loc>
<lastmod>2026-09-01T01:56:41.386Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wimpy_radar_antenna</loc>
<lastmod>2026-09-01T01:56:40.577Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/utpa_gentle_activity1</loc>
<lastmod>2026-09-01T01:56:39.086Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_junit_lesson01_activity1</loc>
<lastmod>2026-09-01T01:56:38.338Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/stop_the_stretching</loc>
<lastmod>2026-09-01T01:56:37.449Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_asteroid_lesson7_activity1_tg</loc>
<lastmod>2026-09-01T01:56:36.539Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/squeeze_is_on</loc>
<lastmod>2026-09-01T01:56:35.667Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/time_challenge</loc>
<lastmod>2026-09-01T01:56:35.056Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/utpa_invisible_activity1</loc>
<lastmod>2026-09-01T01:56:34.429Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_mobile_mary_act</loc>
<lastmod>2026-09-01T01:56:33.453Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_balsa_tech_act</loc>
<lastmod>2026-09-01T01:56:32.500Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/a_house_for_me</loc>
<lastmod>2026-09-01T01:56:31.680Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/construct_an_aqueduct</loc>
<lastmod>2026-09-01T01:56:31.012Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/charlottes_web</loc>
<lastmod>2026-09-01T01:56:29.006Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_foodpackage_music_act</loc>
<lastmod>2026-09-01T01:56:28.293Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_carbon_lesson01_activity1</loc>
<lastmod>2026-09-01T01:56:27.434Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_drink_activity01</loc>
<lastmod>2026-09-01T01:56:26.835Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_computerprogram_lesson03_activity1</loc>
<lastmod>2026-09-01T01:56:26.063Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_deformation_activity1</loc>
<lastmod>2026-09-01T01:56:25.281Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_bridge_joy_act</loc>
<lastmod>2026-09-01T01:56:24.665Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_pveff_lesson04_activity1</loc>
<lastmod>2026-09-01T01:56:23.658Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_plainsight_lesson01_activity1</loc>
<lastmod>2026-09-01T01:56:22.106Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_sensory_toys_activity1</loc>
<lastmod>2026-09-01T01:56:19.196Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_ambulance_activity1</loc>
<lastmod>2026-09-01T01:56:18.484Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_drinkthat_activity1</loc>
<lastmod>2026-09-01T01:56:17.793Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_asteroid_lesson2_activity1_tg</loc>
<lastmod>2026-09-01T01:56:17.066Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_eyes_lesson01_activity1</loc>
<lastmod>2026-09-01T01:56:16.153Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_dig_mapping_activity3</loc>
<lastmod>2026-09-01T01:56:15.095Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_wristwatch_activity1</loc>
<lastmod>2026-09-01T01:56:14.390Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usu_fastfood_activity1</loc>
<lastmod>2026-09-01T01:56:13.789Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_waterqtnew_lesson01_activity1</loc>
<lastmod>2026-09-01T01:56:12.851Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/hydraulic_joy</loc>
<lastmod>2026-09-01T01:56:11.803Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_energypriorities_activity1</loc>
<lastmod>2026-09-01T01:56:11.163Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_powershool_activity1</loc>
<lastmod>2026-09-01T01:56:10.551Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_dna_lesson01_activity1</loc>
<lastmod>2026-09-01T01:56:07.535Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson03_activity2</loc>
<lastmod>2026-09-01T01:56:05.730Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rock_lesson01_activity1</loc>
<lastmod>2026-09-01T01:56:04.923Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_robotic_vision_activity2</loc>
<lastmod>2026-09-01T01:56:04.014Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_bungee_activity1</loc>
<lastmod>2026-09-01T01:56:03.311Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_locatingeq_activity01</loc>
<lastmod>2026-09-01T01:56:02.589Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_mouse_trap_activity1</loc>
<lastmod>2026-09-01T01:56:01.854Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_heartvalves_lesson01_activity2</loc>
<lastmod>2026-09-01T01:56:00.997Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_stormwater_lesson02_activity1</loc>
<lastmod>2026-09-01T01:56:00.080Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ksu_zooniverse_activity1</loc>
<lastmod>2026-09-01T01:55:59.301Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_pharma_lesson01_activity1</loc>
<lastmod>2026-09-01T01:55:58.517Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_energymusic_mem_act</loc>
<lastmod>2026-09-01T01:55:57.628Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson08_activity2</loc>
<lastmod>2026-09-01T01:55:56.655Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/portable_sundial</loc>
<lastmod>2026-09-01T01:55:55.918Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson09_activity2</loc>
<lastmod>2026-09-01T01:55:55.160Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_graphtheory_lesson01_activity2</loc>
<lastmod>2026-09-01T01:55:54.321Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_wizardry_activity1</loc>
<lastmod>2026-09-01T01:55:53.479Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_engineering_our_water_lesson1_activity1_tg</loc>
<lastmod>2026-09-01T01:55:52.752Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_biomimicry_activity6</loc>
<lastmod>2026-09-01T01:55:51.982Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_asteroid_lesson6_activity1_tg</loc>
<lastmod>2026-09-01T01:55:50.593Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_stormwater_lesson02_activity2</loc>
<lastmod>2026-09-01T01:55:49.813Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_stormwater_lesson02_activity3</loc>
<lastmod>2026-09-01T01:55:48.589Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_marine_musc_act2</loc>
<lastmod>2026-09-01T01:55:47.636Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_eenergy_mem_act</loc>
<lastmod>2026-09-01T01:55:46.829Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_surfacetensionunit_act3</loc>
<lastmod>2026-09-01T01:55:45.964Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/human_natural_sue</loc>
<lastmod>2026-09-01T01:55:45.137Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_graphtheory_lesson01_activity1</loc>
<lastmod>2026-09-01T01:55:44.101Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_soundandlight_lesson3_activity1</loc>
<lastmod>2026-09-01T01:55:43.088Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_heartvalves_lesson02_activity1</loc>
<lastmod>2026-09-01T01:55:42.080Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson08_activity1</loc>
<lastmod>2026-09-01T01:55:40.849Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_surfacetensionunit_act2a</loc>
<lastmod>2026-09-01T01:55:39.367Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_mri_act_less_2</loc>
<lastmod>2026-09-01T01:55:38.349Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_invisible_activity1</loc>
<lastmod>2026-09-01T01:55:37.543Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson04_activity2</loc>
<lastmod>2026-09-01T01:55:36.662Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_biomimicry_activity2</loc>
<lastmod>2026-09-01T01:55:35.784Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_redox_activity1</loc>
<lastmod>2026-09-01T01:55:35.185Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson02_activity2</loc>
<lastmod>2026-09-01T01:55:34.400Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_magic_lesson01_activity1</loc>
<lastmod>2026-09-01T01:55:33.586Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson03_activity2</loc>
<lastmod>2026-09-01T01:55:29.260Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_connection_lesson01_activity1</loc>
<lastmod>2026-09-01T01:55:28.531Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_tower_activity1</loc>
<lastmod>2026-09-01T01:55:27.787Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_powergen_tech_act</loc>
<lastmod>2026-09-01T01:55:27.075Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_circuit_lesson01_activity1</loc>
<lastmod>2026-09-01T01:55:25.538Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson02_activity1</loc>
<lastmod>2026-09-01T01:55:24.500Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_biomimicry_activity1</loc>
<lastmod>2026-09-01T01:55:23.763Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_dna_lesson02_activity1</loc>
<lastmod>2026-09-01T01:55:23.023Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_microbes_lesson01_activity1</loc>
<lastmod>2026-09-01T01:55:22.351Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_mri_act_less_8</loc>
<lastmod>2026-09-01T01:55:20.714Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson03_activity1</loc>
<lastmod>2026-09-01T01:55:19.635Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_traffic_lesson01_activity1</loc>
<lastmod>2026-09-01T01:55:18.726Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/hummol_joy_act</loc>
<lastmod>2026-09-01T01:55:18.013Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_heartvalves_lesson01_activity1</loc>
<lastmod>2026-09-01T01:55:17.285Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_robotic_vision_activity1</loc>
<lastmod>2026-09-01T01:55:16.304Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_surg_lesson01_activity1</loc>
<lastmod>2026-09-01T01:55:14.755Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_soundwaves_activity1</loc>
<lastmod>2026-09-01T01:55:14.128Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_dams_lesson01_activity1</loc>
<lastmod>2026-09-01T01:55:13.353Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson04_activity1</loc>
<lastmod>2026-09-01T01:55:12.542Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst_environmental_lesson01_activity1</loc>
<lastmod>2026-09-01T01:55:10.801Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simp_machines_lesson01_activity1</loc>
<lastmod>2026-09-01T01:55:09.894Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_bio_lesson01_activity1</loc>
<lastmod>2026-09-01T01:55:09.074Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_triangles_activity1</loc>
<lastmod>2026-09-01T01:55:08.252Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_watershed_lesson01_activity1</loc>
<lastmod>2026-09-01T01:55:07.504Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson04_activity4</loc>
<lastmod>2026-09-01T01:55:05.792Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_surfacetensionunit_act4</loc>
<lastmod>2026-09-01T01:55:04.850Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson05_activity2</loc>
<lastmod>2026-09-01T01:55:03.800Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson01_activity1</loc>
<lastmod>2026-09-01T01:55:03.059Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simple_lesson05_activity1</loc>
<lastmod>2026-09-01T01:55:02.254Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_phi_activity1</loc>
<lastmod>2026-09-01T01:55:01.465Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/design_weather_instruments</loc>
<lastmod>2026-09-01T01:54:59.946Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_biorecycling_lesson01_activity3</loc>
<lastmod>2026-09-01T01:54:59.139Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spect_activity8</loc>
<lastmod>2026-09-01T01:54:58.083Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_biomimicry_activity4</loc>
<lastmod>2026-09-01T01:54:56.922Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_sensing_activity1</loc>
<lastmod>2026-09-01T01:54:56.271Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_humanwatercycle_lesson01_activity1</loc>
<lastmod>2026-09-01T01:54:55.505Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_soundandlight_lesson4_activity1</loc>
<lastmod>2026-09-01T01:54:54.502Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_lighting_lesson01_activity1</loc>
<lastmod>2026-09-01T01:54:53.770Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/design_packing</loc>
<lastmod>2026-09-01T01:54:53.005Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_biorecycling_lesson01_activity2</loc>
<lastmod>2026-09-01T01:54:52.119Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_cleaning_robot_activity1</loc>
<lastmod>2026-09-01T01:54:51.182Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_retcoulter_act1</loc>
<lastmod>2026-09-01T01:54:50.260Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_fibonacci_activity1</loc>
<lastmod>2026-09-01T01:54:48.815Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_haptics_activity1</loc>
<lastmod>2026-09-01T01:54:47.999Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_biomimicry_activity1</loc>
<lastmod>2026-09-01T01:54:47.207Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_sensorswork_lesson02_activity1</loc>
<lastmod>2026-09-01T01:54:45.958Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_decimals_activity1</loc>
<lastmod>2026-09-01T01:54:44.973Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_activity1_battlebots</loc>
<lastmod>2026-09-01T01:54:44.366Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_matls_activity1</loc>
<lastmod>2026-09-01T01:54:43.730Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_robotic_perimeter_activity1</loc>
<lastmod>2026-09-01T01:54:43.110Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_pumpit_activity1</loc>
<lastmod>2026-09-01T01:54:42.478Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_weather_lesson03_activity1</loc>
<lastmod>2026-09-01T01:54:40.927Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cmu_fruit_activity1</loc>
<lastmod>2026-09-01T01:54:38.526Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_china_lesson03_activity1</loc>
<lastmod>2026-09-01T01:54:36.747Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_linear_eqn_act2_less5</loc>
<lastmod>2026-09-01T01:54:35.740Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_doesitwork_lesson01_activity1</loc>
<lastmod>2026-09-01T01:54:34.956Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_walk_lesson01_activity2</loc>
<lastmod>2026-09-01T01:54:34.150Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_troll_lesson04_activity1</loc>
<lastmod>2026-09-01T01:54:33.116Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_surgicaldevices_tech_act</loc>
<lastmod>2026-09-01T01:54:32.089Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/compare_fabric_materials</loc>
<lastmod>2026-09-01T01:54:31.309Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_soundandlight_lesson7_activity1</loc>
<lastmod>2026-09-01T01:54:30.583Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/touch_and_discover</loc>
<lastmod>2026-09-01T01:54:29.969Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_linear_eqn_act_less4</loc>
<lastmod>2026-09-01T01:54:29.066Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_engineering_our_water_lesson1_activity2_tg</loc>
<lastmod>2026-09-01T01:54:28.368Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_motion_activity1</loc>
<lastmod>2026-09-01T01:54:27.612Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ksu_pingus_activity1</loc>
<lastmod>2026-09-01T01:54:26.920Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_amazon_lesson2_activity1_tg</loc>
<lastmod>2026-09-01T01:54:26.203Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_energy_lesson03_activity1</loc>
<lastmod>2026-09-01T01:54:25.201Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/design_packing_that_works</loc>
<lastmod>2026-09-01T01:54:23.911Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_angular_activity1</loc>
<lastmod>2026-09-01T01:54:23.039Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_robotsandhumans_act1</loc>
<lastmod>2026-09-01T01:54:22.074Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_gears2_activity1</loc>
<lastmod>2026-09-01T01:54:21.315Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_measuring_activity1</loc>
<lastmod>2026-09-01T01:54:20.652Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_robotsandhumans_act2</loc>
<lastmod>2026-09-01T01:54:19.797Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_bioniceye_activity1</loc>
<lastmod>2026-09-01T01:54:18.973Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_empathy_activity3</loc>
<lastmod>2026-09-01T01:54:17.992Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_dig_mapping_activity5</loc>
<lastmod>2026-09-01T01:54:17.061Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_dig_mapping_activity6</loc>
<lastmod>2026-09-01T01:54:16.155Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_handheld_lesson01_activity1</loc>
<lastmod>2026-09-01T01:54:14.711Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_dig_mapping_activity2</loc>
<lastmod>2026-09-01T01:54:13.812Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson05_activity1</loc>
<lastmod>2026-09-01T01:54:12.825Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_oddsofcancer_lesson02_activity1</loc>
<lastmod>2026-09-01T01:54:11.901Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_qandq_activity1</loc>
<lastmod>2026-09-01T01:54:11.057Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_nano_lesson02_activity4</loc>
<lastmod>2026-09-01T01:54:10.120Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_nano_lesson02_activity2</loc>
<lastmod>2026-09-01T01:54:09.205Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_mri_act_less_6</loc>
<lastmod>2026-09-01T01:54:08.162Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson10_activity4</loc>
<lastmod>2026-09-01T01:54:07.366Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson10_activity2</loc>
<lastmod>2026-09-01T01:54:06.500Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simple_lesson02_activity1</loc>
<lastmod>2026-09-01T01:54:05.699Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spect_activity3</loc>
<lastmod>2026-09-01T01:54:04.662Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson06_activity1</loc>
<lastmod>2026-09-01T01:54:03.702Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_avida_lesson01_activity1</loc>
<lastmod>2026-09-01T01:54:02.889Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson03_activity1</loc>
<lastmod>2026-09-01T01:54:02.063Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_lending_hand_activity1</loc>
<lastmod>2026-09-01T01:54:01.236Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_music_choi_act</loc>
<lastmod>2026-09-01T01:54:00.296Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_cancer_activity3</loc>
<lastmod>2026-09-01T01:53:59.324Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson07_activity1</loc>
<lastmod>2026-09-01T01:53:58.458Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_penny_activity1</loc>
<lastmod>2026-09-01T01:53:57.174Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_neworleans_activity1</loc>
<lastmod>2026-09-01T01:53:56.551Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_landfill_music_act</loc>
<lastmod>2026-09-01T01:53:55.831Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_skeletal_system_activity2</loc>
<lastmod>2026-09-01T01:53:55.061Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_packaging_materials</loc>
<lastmod>2026-09-01T01:53:54.500Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_bmd_activity1</loc>
<lastmod>2026-09-01T01:53:53.739Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_claw_activity1</loc>
<lastmod>2026-09-01T01:53:52.427Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_robotic_vision_activity3</loc>
<lastmod>2026-09-01T01:53:51.668Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_oddsofcancer_lesson04_activity1</loc>
<lastmod>2026-09-01T01:53:50.836Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_traffic_activity1</loc>
<lastmod>2026-09-01T01:53:50.178Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_membrane_activity1</loc>
<lastmod>2026-09-01T01:53:49.345Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spect_activity6</loc>
<lastmod>2026-09-01T01:53:46.896Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_biosensors_lesson01_activity1</loc>
<lastmod>2026-09-01T01:53:45.814Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_membrane_activity4</loc>
<lastmod>2026-09-01T01:53:44.983Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_dig_mapping_activity4</loc>
<lastmod>2026-09-01T01:53:44.146Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_oddsofcancer_lesson03_activity1</loc>
<lastmod>2026-09-01T01:53:42.615Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_skeletal_system_activity3</loc>
<lastmod>2026-09-01T01:53:41.703Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_python_lesson01_activity1</loc>
<lastmod>2026-09-01T01:53:40.970Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_sandpwaves_activity1</loc>
<lastmod>2026-09-01T01:53:40.299Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_population_activity1</loc>
<lastmod>2026-09-01T01:53:39.641Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_hybrid_design_activity3</loc>
<lastmod>2026-09-01T01:53:38.894Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson02_activity1</loc>
<lastmod>2026-09-01T01:53:37.894Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_life_lesson01_activity1</loc>
<lastmod>2026-09-01T01:53:36.847Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_nano_lesson02_activity3</loc>
<lastmod>2026-09-01T01:53:35.976Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rock_lesson04_activity1</loc>
<lastmod>2026-09-01T01:53:35.210Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson05_activity2</loc>
<lastmod>2026-09-01T01:53:34.363Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_cancer_activity2</loc>
<lastmod>2026-09-01T01:53:33.394Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_energy_lesson01_activity1</loc>
<lastmod>2026-09-01T01:53:31.759Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_float_mary_act</loc>
<lastmod>2026-09-01T01:53:30.665Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_solar_lesson07_activity1</loc>
<lastmod>2026-09-01T01:53:29.612Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_magnets_activity1</loc>
<lastmod>2026-09-01T01:53:29.018Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_swing_lesson01_activity1</loc>
<lastmod>2026-09-01T01:53:28.265Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_asteroid_lesson4_activity1_tg</loc>
<lastmod>2026-09-01T01:53:27.352Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_appinventor_lesson01_activity1</loc>
<lastmod>2026-09-01T01:53:26.449Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_neuron_lesson01_activity1</loc>
<lastmod>2026-09-01T01:53:25.660Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_empathy_activity2</loc>
<lastmod>2026-09-01T01:53:23.929Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson1_activity1</loc>
<lastmod>2026-09-01T01:53:23.127Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson09_activity1</loc>
<lastmod>2026-09-01T01:53:21.630Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_sep_mixtures_activity2</loc>
<lastmod>2026-09-01T01:53:20.229Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson04_activity2</loc>
<lastmod>2026-09-01T01:53:19.472Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_weather_lesson06_activity1</loc>
<lastmod>2026-09-01T01:53:18.684Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_space8_lesson03_activity1</loc>
<lastmod>2026-09-01T01:53:17.783Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_creative_activity3</loc>
<lastmod>2026-09-01T01:53:16.835Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_surfactants_act3</loc>
<lastmod>2026-09-01T01:53:16.145Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_surfactants_act1</loc>
<lastmod>2026-09-01T01:53:15.578Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_projectile_activity1</loc>
<lastmod>2026-09-01T01:53:14.949Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_howcold_activity1</loc>
<lastmod>2026-09-01T01:53:12.235Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson08_activity1</loc>
<lastmod>2026-09-01T01:53:11.466Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson05_activity3</loc>
<lastmod>2026-09-01T01:53:07.974Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_lifescience_lesson02_activity1</loc>
<lastmod>2026-09-01T01:53:06.070Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_maxwell_lesson01_activity1</loc>
<lastmod>2026-09-01T01:53:05.218Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson02_activity1</loc>
<lastmod>2026-09-01T01:53:02.909Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson01_activity2</loc>
<lastmod>2026-09-01T01:53:02.056Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_heaveho_music_act</loc>
<lastmod>2026-09-01T01:53:01.327Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson05_activity1</loc>
<lastmod>2026-09-01T01:53:00.506Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_viking_ship_lesson01</loc>
<lastmod>2026-09-01T01:52:59.875Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson03_activity1</loc>
<lastmod>2026-09-01T01:52:59.086Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_amazon_lesson5_activity1_tg</loc>
<lastmod>2026-09-01T01:52:58.257Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_soundandlight_lesson2_activity1</loc>
<lastmod>2026-09-01T01:52:57.510Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson07_activity1</loc>
<lastmod>2026-09-01T01:52:56.760Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_soundandlight_lesson6_activity1</loc>
<lastmod>2026-09-01T01:52:55.400Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_bacteria_activity1</loc>
<lastmod>2026-09-01T01:52:52.242Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_concentration_activity1</loc>
<lastmod>2026-09-01T01:52:51.636Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson01_activity1</loc>
<lastmod>2026-09-01T01:52:50.752Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mag_lesson2_activity2</loc>
<lastmod>2026-09-01T01:52:49.939Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson03_activity1</loc>
<lastmod>2026-09-01T01:52:49.052Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson07_activity1</loc>
<lastmod>2026-09-01T01:52:48.161Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson10_activity1</loc>
<lastmod>2026-09-01T01:52:47.367Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_puttingrobots_activity1</loc>
<lastmod>2026-09-01T01:52:46.711Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson06_activity1</loc>
<lastmod>2026-09-01T01:52:45.933Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mars_lesson06_activity1</loc>
<lastmod>2026-09-01T01:52:45.097Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson01_activity3</loc>
<lastmod>2026-09-01T01:52:44.226Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_art_lesson01_activity1</loc>
<lastmod>2026-09-01T01:52:43.341Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_drops_mary_act</loc>
<lastmod>2026-09-01T01:52:42.532Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_nanoparticles_lesson02_activity2</loc>
<lastmod>2026-09-01T01:52:41.348Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_lesson8_activity1_tg</loc>
<lastmod>2026-09-01T01:52:40.580Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_amradio_tech_act</loc>
<lastmod>2026-09-01T01:52:39.835Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_flow_activity1</loc>
<lastmod>2026-09-01T01:52:39.070Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_linear_eqn_act_less2</loc>
<lastmod>2026-09-01T01:52:37.879Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson05_activity3</loc>
<lastmod>2026-09-01T01:52:37.132Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_pirates_lesson01_activity1</loc>
<lastmod>2026-09-01T01:52:36.412Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson09_activity2</loc>
<lastmod>2026-09-01T01:52:35.629Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson01_activity2</loc>
<lastmod>2026-09-01T01:52:34.798Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_maze_joy_act</loc>
<lastmod>2026-09-01T01:52:33.144Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_surfacetensionunit_act1</loc>
<lastmod>2026-09-01T01:52:32.377Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_gears_activity1</loc>
<lastmod>2026-09-01T01:52:31.628Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_unitconv_activity1</loc>
<lastmod>2026-09-01T01:52:30.991Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_elevators_activity1</loc>
<lastmod>2026-09-01T01:52:30.234Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_pi_activity1</loc>
<lastmod>2026-09-01T01:52:29.486Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_farmland_activity1</loc>
<lastmod>2026-09-01T01:52:28.883Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_robots_act</loc>
<lastmod>2026-09-01T01:52:28.110Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_measuringp_activity1</loc>
<lastmod>2026-09-01T01:52:27.334Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_sensorswork_lesson01_activity1</loc>
<lastmod>2026-09-01T01:52:26.251Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_rockps_activity1</loc>
<lastmod>2026-09-01T01:52:25.521Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_robotsandhumans_act4</loc>
<lastmod>2026-09-01T01:52:24.574Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_fat_activity1</loc>
<lastmod>2026-09-01T01:52:23.798Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_boxes_mary_act</loc>
<lastmod>2026-09-01T01:52:21.978Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson06_activity1</loc>
<lastmod>2026-09-01T01:52:21.145Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_diffraction_activity1</loc>
<lastmod>2026-09-01T01:52:20.434Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_milk_activity1</loc>
<lastmod>2026-09-01T01:52:19.763Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson04_activity5</loc>
<lastmod>2026-09-01T01:52:18.947Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson04_activity2</loc>
<lastmod>2026-09-01T01:52:17.890Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson04_activity1</loc>
<lastmod>2026-09-01T01:52:16.965Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson06_activity2</loc>
<lastmod>2026-09-01T01:52:16.104Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson01_activity2</loc>
<lastmod>2026-09-01T01:52:15.280Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simple_lesson03_activity1</loc>
<lastmod>2026-09-01T01:52:14.470Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson07_activity3</loc>
<lastmod>2026-09-01T01:52:13.566Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_tall_mary_act</loc>
<lastmod>2026-09-01T01:52:12.870Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simple_lesson01_activity2</loc>
<lastmod>2026-09-01T01:52:12.056Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson09_activity3</loc>
<lastmod>2026-09-01T01:52:11.037Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson08_activity2</loc>
<lastmod>2026-09-01T01:52:10.074Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson07_activity2</loc>
<lastmod>2026-09-01T01:52:09.324Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson05_activity3</loc>
<lastmod>2026-09-01T01:52:08.591Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson01_activity3</loc>
<lastmod>2026-09-01T01:52:07.839Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_train_activity1</loc>
<lastmod>2026-09-01T01:52:06.132Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson02_activity2</loc>
<lastmod>2026-09-01T01:52:05.326Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson01_activity1</loc>
<lastmod>2026-09-01T01:52:04.484Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson02_activity2</loc>
<lastmod>2026-09-01T01:52:03.678Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_faucets_lesson1_activity1</loc>
<lastmod>2026-09-01T01:52:02.888Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_feet_activity1</loc>
<lastmod>2026-09-01T01:52:01.646Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_gps_lesson01_activity1</loc>
<lastmod>2026-09-01T01:52:00.923Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_gatorade_activity1</loc>
<lastmod>2026-09-01T01:52:00.149Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_surg_lesson04_activity1</loc>
<lastmod>2026-09-01T01:51:59.161Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_cooling_activity1</loc>
<lastmod>2026-09-01T01:51:58.153Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_avida2_activity</loc>
<lastmod>2026-09-01T01:51:57.357Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_doyousee_lesson01_activity1</loc>
<lastmod>2026-09-01T01:51:56.382Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umn_shock_activity1</loc>
<lastmod>2026-09-01T01:51:55.713Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson08_activity3</loc>
<lastmod>2026-09-01T01:51:54.880Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_drink_lesson01_activity1</loc>
<lastmod>2026-09-01T01:51:54.171Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_marine_musc_act</loc>
<lastmod>2026-09-01T01:51:52.466Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_soil_activity1</loc>
<lastmod>2026-09-01T01:51:51.698Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_intro_lesson06_activity1</loc>
<lastmod>2026-09-01T01:51:50.550Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_cleanupmess_act1</loc>
<lastmod>2026-09-01T01:51:49.786Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_troll_lesson03_activity1</loc>
<lastmod>2026-09-01T01:51:49.017Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_intro_lesson05_activity1</loc>
<lastmod>2026-09-01T01:51:48.116Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/gat_surface_tension_activity1</loc>
<lastmod>2026-09-01T01:51:47.502Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson03_activity1</loc>
<lastmod>2026-09-01T01:51:46.614Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spect_activity4</loc>
<lastmod>2026-09-01T01:51:45.436Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_bmd_activity3</loc>
<lastmod>2026-09-01T01:51:44.231Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_hello_activity</loc>
<lastmod>2026-09-01T01:51:43.581Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson05_activity1</loc>
<lastmod>2026-09-01T01:51:42.769Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson06_activity3</loc>
<lastmod>2026-09-01T01:51:41.938Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_friction_smary_act3</loc>
<lastmod>2026-09-01T01:51:40.960Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mobile_sue</loc>
<lastmod>2026-09-01T01:51:40.318Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_bmd_activity2</loc>
<lastmod>2026-09-01T01:51:39.322Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_perm_usman_act</loc>
<lastmod>2026-09-01T01:51:38.602Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson01_activity1</loc>
<lastmod>2026-09-01T01:51:37.752Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uva_pump_bme0607_act</loc>
<lastmod>2026-09-01T01:51:36.999Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson05_activity2</loc>
<lastmod>2026-09-01T01:51:36.128Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spect_activity5</loc>
<lastmod>2026-09-01T01:51:35.165Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson04_activity3</loc>
<lastmod>2026-09-01T01:51:34.128Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_avida_lesson01_activity2</loc>
<lastmod>2026-09-01T01:51:33.192Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson2_activity2</loc>
<lastmod>2026-09-01T01:51:32.158Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson08_activity2</loc>
<lastmod>2026-09-01T01:51:31.422Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson10_activity2</loc>
<lastmod>2026-09-01T01:51:29.254Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson03_activity2</loc>
<lastmod>2026-09-01T01:51:28.512Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_flow_activity2</loc>
<lastmod>2026-09-01T01:51:27.732Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson3_activity1</loc>
<lastmod>2026-09-01T01:51:26.114Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_aerogel_lesson01_activity1</loc>
<lastmod>2026-09-01T01:51:25.352Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_lunar_muscle_act</loc>
<lastmod>2026-09-01T01:51:24.439Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_parallel_activity1</loc>
<lastmod>2026-09-01T01:51:23.725Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_pushpull_activity1</loc>
<lastmod>2026-09-01T01:51:22.480Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_working_activity1</loc>
<lastmod>2026-09-01T01:51:21.836Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson03_activity2</loc>
<lastmod>2026-09-01T01:51:20.815Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson06_activity3</loc>
<lastmod>2026-09-01T01:51:20.046Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson05_activity1</loc>
<lastmod>2026-09-01T01:51:18.401Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_taste_mary_act</loc>
<lastmod>2026-09-01T01:51:17.619Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_pulleys_activity1</loc>
<lastmod>2026-09-01T01:51:16.310Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_foucault_activity1</loc>
<lastmod>2026-09-01T01:51:15.662Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_accuracy_activity1</loc>
<lastmod>2026-09-01T01:51:15.050Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_robotwheels_activity1</loc>
<lastmod>2026-09-01T01:51:14.402Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_montecarlo_activity1</loc>
<lastmod>2026-09-01T01:51:13.794Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_speedbot_activity1</loc>
<lastmod>2026-09-01T01:51:13.091Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_challenges_lesson02_activity1</loc>
<lastmod>2026-09-01T01:51:10.675Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_springforce_activity1</loc>
<lastmod>2026-09-01T01:51:09.837Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_roboclock_activity1</loc>
<lastmod>2026-09-01T01:51:09.212Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_ultrasound</loc>
<lastmod>2026-09-01T01:51:08.513Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_carpotential_activity1</loc>
<lastmod>2026-09-01T01:51:07.876Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_robotgo_activity1</loc>
<lastmod>2026-09-01T01:51:07.226Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_accelerometer_activity1</loc>
<lastmod>2026-09-01T01:51:06.547Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_seesaw_activity1</loc>
<lastmod>2026-09-01T01:51:05.890Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_arctic_activity1</loc>
<lastmod>2026-09-01T01:51:05.253Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_linear_eqn_act1_less5</loc>
<lastmod>2026-09-01T01:51:02.013Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_nanoparticles_lesson01_activity1</loc>
<lastmod>2026-09-01T01:51:01.286Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_surfacetensionunit_act2b</loc>
<lastmod>2026-09-01T01:51:00.330Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson02_activity3</loc>
<lastmod>2026-09-01T01:50:59.548Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucla_clots_lesson01_activity1</loc>
<lastmod>2026-09-01T01:50:58.707Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_hybrid_design_activity1</loc>
<lastmod>2026-09-01T01:50:56.465Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson03_activity2</loc>
<lastmod>2026-09-01T01:50:55.652Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/pur_fluidpower_act</loc>
<lastmod>2026-09-01T01:50:54.921Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson03_activity1</loc>
<lastmod>2026-09-01T01:50:53.925Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_amazon_lesson4_activity1_tg</loc>
<lastmod>2026-09-01T01:50:52.087Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson2_activity3</loc>
<lastmod>2026-09-01T01:50:51.347Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson04_activity1</loc>
<lastmod>2026-09-01T01:50:50.550Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson10_activity1</loc>
<lastmod>2026-09-01T01:50:49.827Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_lesson6_activity2_tg</loc>
<lastmod>2026-09-01T01:50:48.185Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson07_activity1</loc>
<lastmod>2026-09-01T01:50:47.436Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson6_activity1</loc>
<lastmod>2026-09-01T01:50:46.695Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson08_activity1</loc>
<lastmod>2026-09-01T01:50:45.952Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson07_activity2</loc>
<lastmod>2026-09-01T01:50:44.983Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rivers_lesson01_activity1</loc>
<lastmod>2026-09-01T01:50:43.303Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson04_activity1</loc>
<lastmod>2026-09-01T01:50:39.890Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_cleanupmess_act2</loc>
<lastmod>2026-09-01T01:50:39.086Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson10_activity3</loc>
<lastmod>2026-09-01T01:50:38.323Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_hp_activity_acidic_ink</loc>
<lastmod>2026-09-01T01:50:37.526Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_healthcare_lesson01_activity1</loc>
<lastmod>2026-09-01T01:50:35.882Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson09_activity1</loc>
<lastmod>2026-09-01T01:50:35.068Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_fluidmechanics_lesson01_activity2</loc>
<lastmod>2026-09-01T01:50:34.277Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson04_activity5</loc>
<lastmod>2026-09-01T01:50:33.325Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson02_activity2</loc>
<lastmod>2026-09-01T01:50:32.606Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson02_activity1</loc>
<lastmod>2026-09-01T01:50:31.885Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_temp_activity1</loc>
<lastmod>2026-09-01T01:50:31.263Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson03_activity3</loc>
<lastmod>2026-09-01T01:50:30.482Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_housing_lesson03_activity2</loc>
<lastmod>2026-09-01T01:50:29.641Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_plastic_activity1</loc>
<lastmod>2026-09-01T01:50:29.024Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_brid_lesson04_activity1</loc>
<lastmod>2026-09-01T01:50:28.152Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson03_activity2</loc>
<lastmod>2026-09-01T01:50:27.275Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_bycatchunit_musc_act3</loc>
<lastmod>2026-09-01T01:50:26.507Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_cancer_activity1</loc>
<lastmod>2026-09-01T01:50:25.111Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uta_dense_lesson01_activity1</loc>
<lastmod>2026-09-01T01:50:24.395Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_troll_lesson01_activity1</loc>
<lastmod>2026-09-01T01:50:23.652Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_amazon_lesson6_activity1_tg</loc>
<lastmod>2026-09-01T01:50:22.819Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_intro_lesson02_activity1</loc>
<lastmod>2026-09-01T01:50:21.976Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_amazon_lesson3_activity1_tg</loc>
<lastmod>2026-09-01T01:50:21.262Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/clem_waves_activity</loc>
<lastmod>2026-09-01T01:50:20.400Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_dome_lesson01_activity1</loc>
<lastmod>2026-09-01T01:50:18.977Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_sound_lesson03_activity1</loc>
<lastmod>2026-09-01T01:50:17.295Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_liver_activity1</loc>
<lastmod>2026-09-01T01:50:16.395Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson03_activity1</loc>
<lastmod>2026-09-01T01:50:15.599Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_brid_lesson05_activity1</loc>
<lastmod>2026-09-01T01:50:14.828Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_bubble_mary_act</loc>
<lastmod>2026-09-01T01:50:13.935Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_electricity_lesson01_activity1</loc>
<lastmod>2026-09-01T01:50:12.568Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_heat_lesson1_activity1</loc>
<lastmod>2026-09-01T01:50:11.800Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson04_activity2</loc>
<lastmod>2026-09-01T01:50:10.984Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson02_activity1</loc>
<lastmod>2026-09-01T01:50:10.206Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/semisolid_sue</loc>
<lastmod>2026-09-01T01:50:08.733Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_cleanupmess_act3</loc>
<lastmod>2026-09-01T01:50:07.841Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rock_lesson05_activity1</loc>
<lastmod>2026-09-01T01:50:06.798Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_maxwell_lesson01_activity2</loc>
<lastmod>2026-09-01T01:50:05.746Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_massba_activity1</loc>
<lastmod>2026-09-01T01:50:05.122Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_wavelength_activity1</loc>
<lastmod>2026-09-01T01:50:03.673Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson09_activity3</loc>
<lastmod>2026-09-01T01:50:02.755Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson08_activity1</loc>
<lastmod>2026-09-01T01:50:02.009Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_ourbodies_lesson02_activity4</loc>
<lastmod>2026-09-01T01:50:00.982Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_ohm2_act_joy</loc>
<lastmod>2026-09-01T01:49:59.359Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_heat_lesson1_activity2</loc>
<lastmod>2026-09-01T01:49:58.425Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_skeletal_system_activity1</loc>
<lastmod>2026-09-01T01:49:57.542Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_pveff_lesson03_activity1</loc>
<lastmod>2026-09-01T01:49:56.560Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson09_activity1</loc>
<lastmod>2026-09-01T01:49:55.649Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_hp_activity_motion</loc>
<lastmod>2026-09-01T01:49:54.929Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_housing_lesson04_activity2</loc>
<lastmod>2026-09-01T01:49:51.196Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson08_activity1</loc>
<lastmod>2026-09-01T01:49:50.333Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_energy_lesson02_activity1</loc>
<lastmod>2026-09-01T01:49:49.561Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_lesson3_activity2_tg</loc>
<lastmod>2026-09-01T01:49:48.049Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_membrane_activity2</loc>
<lastmod>2026-09-01T01:49:47.330Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson04_activity1</loc>
<lastmod>2026-09-01T01:49:46.570Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_crystals_lesson01_activity2</loc>
<lastmod>2026-09-01T01:49:45.851Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson01_activity3</loc>
<lastmod>2026-09-01T01:49:44.883Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson05_activity1</loc>
<lastmod>2026-09-01T01:49:43.964Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson07_activity1</loc>
<lastmod>2026-09-01T01:49:43.179Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_concentrate_activity1</loc>
<lastmod>2026-09-01T01:49:42.576Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson05_activity2</loc>
<lastmod>2026-09-01T01:49:41.605Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_convshoes_lesson01_activity2</loc>
<lastmod>2026-09-01T01:49:39.562Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ohm1_act_joy</loc>
<lastmod>2026-09-01T01:49:38.733Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson05_activity2</loc>
<lastmod>2026-09-01T01:49:37.187Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson03_activity3</loc>
<lastmod>2026-09-01T01:49:36.237Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson04_activity2</loc>
<lastmod>2026-09-01T01:49:35.388Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson03_activity3</loc>
<lastmod>2026-09-01T01:49:34.564Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst_natfreq_activity1</loc>
<lastmod>2026-09-01T01:49:33.904Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson09_activity2</loc>
<lastmod>2026-09-01T01:49:33.139Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson08_activity1</loc>
<lastmod>2026-09-01T01:49:32.316Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson07_activity2</loc>
<lastmod>2026-09-01T01:49:30.879Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_dams_lesson06_activity1</loc>
<lastmod>2026-09-01T01:49:29.987Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson02_activity1</loc>
<lastmod>2026-09-01T01:49:29.049Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_brid_lesson03_activity1</loc>
<lastmod>2026-09-01T01:49:26.805Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson07_activity1</loc>
<lastmod>2026-09-01T01:49:26.007Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_cells_lesson03_activity1</loc>
<lastmod>2026-09-01T01:49:24.393Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_physical_computing_activity1</loc>
<lastmod>2026-09-01T01:49:22.230Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_amazon_lesson1_activity1_tg</loc>
<lastmod>2026-09-01T01:49:19.348Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson09_activity2</loc>
<lastmod>2026-09-01T01:49:16.297Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson04_activity4</loc>
<lastmod>2026-09-01T01:49:15.465Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson06_activity1</loc>
<lastmod>2026-09-01T01:49:14.608Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_amazon_lesson7_activity1_tg</loc>
<lastmod>2026-09-01T01:49:13.758Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_evolution_mary_act</loc>
<lastmod>2026-09-01T01:49:13.091Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson09_activity1</loc>
<lastmod>2026-09-01T01:49:12.291Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson07_activity1</loc>
<lastmod>2026-09-01T01:49:10.551Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson08_activity1</loc>
<lastmod>2026-09-01T01:49:09.551Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson01_activity1</loc>
<lastmod>2026-09-01T01:49:08.726Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/glue_joy_act</loc>
<lastmod>2026-09-01T01:49:07.957Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson08_activity1</loc>
<lastmod>2026-09-01T01:49:07.157Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_bio_lesson04_activity1</loc>
<lastmod>2026-09-01T01:49:06.345Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson10_activity1</loc>
<lastmod>2026-09-01T01:49:05.542Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_nano_lesson01_activity1</loc>
<lastmod>2026-09-01T01:49:04.601Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mars_lesson03_activity2</loc>
<lastmod>2026-09-01T01:49:03.668Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_membrane_activity5</loc>
<lastmod>2026-09-01T01:49:01.440Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_electrons_activity1</loc>
<lastmod>2026-09-01T01:48:59.110Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/ced-creative-engineering-design-unit</loc>
<lastmod>2026-09-01T02:25:48.816Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/umo-2938-neural-engineering-unit</loc>
<lastmod>2026-09-01T02:25:48.017Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/umo-2952-brain-learning-process-unit</loc>
<lastmod>2026-09-01T02:22:47.624Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-forces-friction-unit</loc>
<lastmod>2026-09-01T02:24:09.421Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-forces-stress-strain-unit</loc>
<lastmod>2026-09-01T02:23:40.832Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-forces-mass-momentum-unit</loc>
<lastmod>2026-09-01T02:24:10.737Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-forces-weight-gravity-unit</loc>
<lastmod>2026-09-01T02:24:12.200Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-motion-kinetic-potential-energy-unit</loc>
<lastmod>2026-09-01T02:23:27.696Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-motion-newton-laws-unit</loc>
<lastmod>2026-09-01T02:24:13.643Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-work-force-energy-power-unit</loc>
<lastmod>2026-09-01T02:23:18.009Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-conservation-efficiency-unit</loc>
<lastmod>2026-09-01T02:23:15.423Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-use-systems-unit</loc>
<lastmod>2026-09-01T02:23:12.417Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-nonrenewable-oil-unit</loc>
<lastmod>2026-09-01T02:23:28.893Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-renewable-solar-unit</loc>
<lastmod>2026-09-01T02:22:48.978Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-renewable-water-unit</loc>
<lastmod>2026-09-01T02:23:13.611Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-renewable-wind-unit</loc>
<lastmod>2026-09-01T02:23:10.915Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-electrical-unit</loc>
<lastmod>2026-09-01T02:22:50.415Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-sound-unit</loc>
<lastmod>2026-09-01T02:23:31.527Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-thermal-unit</loc>
<lastmod>2026-09-01T02:23:21.615Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-conservation-unit</loc>
<lastmod>2026-09-01T02:24:08.056Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_environ_weather_climate_unit</loc>
<lastmod>2026-09-01T02:23:04.523Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_environ_issues_unit</loc>
<lastmod>2026-09-01T02:23:06.155Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_environ_waste_recycling_unit</loc>
<lastmod>2026-09-01T02:23:24.127Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_environ_resources_unit</loc>
<lastmod>2026-09-01T02:23:25.196Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_environ_water_pollution_unit</loc>
<lastmod>2026-09-01T02:23:22.899Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-air-greenhouse-effect-unit</loc>
<lastmod>2026-09-01T02:23:26.324Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_air_pollution_solutions_unit</loc>
<lastmod>2026-09-01T02:23:32.916Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_air_acid_rain_unit</loc>
<lastmod>2026-09-01T02:23:09.407Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_air_pollution_unit</loc>
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