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<url>
<loc>https://www.teachengineering.org/lessons/cub_human_lesson04</loc>
<lastmod>2026-07-27T21:56:27.457Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_earth_lesson1</loc>
<lastmod>2026-07-27T21:56:20.715Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_dams_lesson01</loc>
<lastmod>2026-07-27T21:56:18.767Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_human_lesson02</loc>
<lastmod>2026-07-27T21:56:18.076Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mix_lesson3</loc>
<lastmod>2026-07-27T21:56:17.449Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_simp_machines_lesson01</loc>
<lastmod>2026-07-27T21:56:16.836Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_sensorswork_lesson03</loc>
<lastmod>2026-07-27T21:56:09.722Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_biomimicry_less1</loc>
<lastmod>2026-07-27T21:56:09.100Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_oddsofcancer_lesson01</loc>
<lastmod>2026-07-27T21:56:08.594Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_robotic_vision_less3</loc>
<lastmod>2026-07-27T21:56:07.830Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/clem_waves_lesson04</loc>
<lastmod>2026-07-27T21:56:07.284Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson05</loc>
<lastmod>2026-07-27T21:56:06.497Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_solar_lesson04</loc>
<lastmod>2026-07-27T21:56:05.792Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/ucd_newton_lesson03</loc>
<lastmod>2026-07-27T21:56:04.980Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson09</loc>
<lastmod>2026-07-27T21:56:04.293Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_electricity_lesson05</loc>
<lastmod>2026-07-27T21:56:03.625Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/clem_waves_lesson02</loc>
<lastmod>2026-07-27T21:56:03.062Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy2_lesson01</loc>
<lastmod>2026-07-27T21:56:02.452Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_bycatchunit_musc_less</loc>
<lastmod>2026-07-27T21:56:01.837Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_intro_lesson03</loc>
<lastmod>2026-07-27T21:56:01.188Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/wpi_lesson_1</loc>
<lastmod>2026-07-27T21:56:00.565Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mars_lesson02</loc>
<lastmod>2026-07-27T21:55:59.791Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cla_lesson6_efficiency</loc>
<lastmod>2026-07-27T21:55:58.970Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cla_lesson3_energy_basics</loc>
<lastmod>2026-07-27T21:55:58.165Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cla_lesson4_forms_states_conversions</loc>
<lastmod>2026-07-27T21:55:57.384Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cla_lesson5_energy_sources_systems</loc>
<lastmod>2026-07-27T21:55:56.624Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cla_lesson1_energyproblem</loc>
<lastmod>2026-07-27T21:55:55.989Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cla_lesson2_problem_solving</loc>
<lastmod>2026-07-27T21:55:55.265Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_solar_lesson03</loc>
<lastmod>2026-07-27T21:55:54.613Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_solar_lesson07</loc>
<lastmod>2026-07-27T21:55:53.958Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_solar_lesson06</loc>
<lastmod>2026-07-27T21:55:53.225Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy_lesson03</loc>
<lastmod>2026-07-27T21:55:52.585Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_dig_mapping_less3</loc>
<lastmod>2026-07-27T21:55:51.725Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_boxes_mary_less</loc>
<lastmod>2026-07-27T21:55:51.097Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_natdis_lesson05</loc>
<lastmod>2026-07-27T21:55:50.475Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_rock_lesson02</loc>
<lastmod>2026-07-27T21:55:49.687Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/wst_environmental_lesson01</loc>
<lastmod>2026-07-27T21:55:49.049Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_hp_lesson_force</loc>
<lastmod>2026-07-27T21:55:48.435Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_antimatter_lesson</loc>
<lastmod>2026-07-27T21:55:47.899Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_nano_lesson01</loc>
<lastmod>2026-07-27T21:55:46.254Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_rocket_lesson01</loc>
<lastmod>2026-07-27T21:55:45.176Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_ourbodies_lesson02</loc>
<lastmod>2026-07-27T21:55:44.536Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_consenergy_rde_less</loc>
<lastmod>2026-07-27T21:55:42.690Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_robotsandhumans_less2</loc>
<lastmod>2026-07-27T21:55:41.933Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/usf_surfactants_les1</loc>
<lastmod>2026-07-27T21:55:41.380Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_housing_lesson01</loc>
<lastmod>2026-07-27T21:55:40.726Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson09</loc>
<lastmod>2026-07-27T21:55:39.910Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson04</loc>
<lastmod>2026-07-27T21:55:39.304Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_earth_lesson5</loc>
<lastmod>2026-07-27T21:55:38.052Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson06</loc>
<lastmod>2026-07-27T21:55:37.414Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_robotsandhumans_less4</loc>
<lastmod>2026-07-27T21:55:36.622Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_weather_lesson05</loc>
<lastmod>2026-07-27T21:55:35.556Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_weather_lesson01</loc>
<lastmod>2026-07-27T21:55:34.969Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_genetics_mary_less</loc>
<lastmod>2026-07-27T21:55:34.413Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_troll_lesson02</loc>
<lastmod>2026-07-27T21:55:33.798Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson02</loc>
<lastmod>2026-07-27T21:55:33.006Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_biomimicry_less4</loc>
<lastmod>2026-07-27T21:55:31.774Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_surfacetensionunit_less4</loc>
<lastmod>2026-07-27T21:55:30.930Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_hp_lesson_square</loc>
<lastmod>2026-07-27T21:55:29.857Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_catapult_lesson01</loc>
<lastmod>2026-07-27T21:55:29.449Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_hybrid_design_less2</loc>
<lastmod>2026-07-27T21:55:28.679Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson01</loc>
<lastmod>2026-07-27T21:55:28.004Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_tower_tech_less</loc>
<lastmod>2026-07-27T21:55:27.412Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_natdis_lesson07</loc>
<lastmod>2026-07-27T21:55:26.704Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_seismicw_lesson01</loc>
<lastmod>2026-07-27T21:55:26.140Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_magic_lesson01</loc>
<lastmod>2026-07-27T21:55:25.574Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_solaroven_tech_less</loc>
<lastmod>2026-07-27T21:55:24.991Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_crystals_lesson01</loc>
<lastmod>2026-07-27T21:55:24.456Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson07</loc>
<lastmod>2026-07-27T21:55:23.227Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_weather_lesson04</loc>
<lastmod>2026-07-27T21:55:22.576Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_enveng_lesson06</loc>
<lastmod>2026-07-27T21:55:21.957Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_brid_lesson01</loc>
<lastmod>2026-07-27T21:55:21.310Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_biomed_lesson07</loc>
<lastmod>2026-07-27T21:55:20.628Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_carbon_lesson01</loc>
<lastmod>2026-07-27T21:55:20.069Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson05</loc>
<lastmod>2026-07-27T21:55:19.181Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson09</loc>
<lastmod>2026-07-27T21:55:18.509Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_genetic_lesson01</loc>
<lastmod>2026-07-27T21:55:17.968Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_heattransfer_smary_less</loc>
<lastmod>2026-07-27T21:55:17.458Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/ucd_electricity_lesson01</loc>
<lastmod>2026-07-27T21:55:16.920Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_housing_lesson05</loc>
<lastmod>2026-07-27T21:55:16.295Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_surfacetensionunit_less3</loc>
<lastmod>2026-07-27T21:55:15.484Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_intro_lesson01</loc>
<lastmod>2026-07-27T21:55:14.832Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy_lesson01</loc>
<lastmod>2026-07-27T21:55:14.201Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_robotic_vision_less1</loc>
<lastmod>2026-07-27T21:55:13.589Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_enveng_lesson05</loc>
<lastmod>2026-07-27T21:55:12.937Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_detdrawings_lesson01</loc>
<lastmod>2026-07-27T21:55:12.407Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson10</loc>
<lastmod>2026-07-27T21:55:11.707Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_lesson1_crashscene_tg</loc>
<lastmod>2026-07-27T21:55:11.087Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/wpi_bones_lesson01</loc>
<lastmod>2026-07-27T21:55:10.514Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_lifescience_lesson03</loc>
<lastmod>2026-07-27T21:55:09.890Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson03</loc>
<lastmod>2026-07-27T21:55:09.276Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson09</loc>
<lastmod>2026-07-27T21:55:08.594Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_human_lesson06</loc>
<lastmod>2026-07-27T21:55:07.923Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_earth_lesson6</loc>
<lastmod>2026-07-27T21:55:07.281Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_brid_lesson03</loc>
<lastmod>2026-07-27T21:55:06.636Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_intro_lesson04</loc>
<lastmod>2026-07-27T21:55:05.989Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/ucd_newton_lesson02</loc>
<lastmod>2026-07-27T21:55:05.383Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson03</loc>
<lastmod>2026-07-27T21:55:04.585Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/ucla_lava_lesson01</loc>
<lastmod>2026-07-27T21:55:03.994Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_natdis_lesson08</loc>
<lastmod>2026-07-27T21:55:03.323Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_art_lesson01</loc>
<lastmod>2026-07-27T21:55:02.742Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_soundandlight_lesson7</loc>
<lastmod>2026-07-27T21:55:02.015Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_lifescience_lesson04</loc>
<lastmod>2026-07-27T21:55:01.400Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_cleanupmess_less4</loc>
<lastmod>2026-07-27T21:55:00.614Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_lifescience_lesson02</loc>
<lastmod>2026-07-27T21:55:00.025Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_solarenergy_lesson01</loc>
<lastmod>2026-07-27T21:54:59.485Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_enveng_lesson02</loc>
<lastmod>2026-07-27T21:54:58.824Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_matlsci_lesson01</loc>
<lastmod>2026-07-27T21:54:58.287Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_convshoes_lesson01</loc>
<lastmod>2026-07-27T21:54:57.742Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/ucd_energy_lesson01</loc>
<lastmod>2026-07-27T21:54:57.100Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_linear_eqn_less4</loc>
<lastmod>2026-07-27T21:54:56.325Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy2_lesson06</loc>
<lastmod>2026-07-27T21:54:55.686Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_bio_lesson06</loc>
<lastmod>2026-07-27T21:54:55.029Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy2_lesson02</loc>
<lastmod>2026-07-27T21:54:54.395Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_space8_lesson01</loc>
<lastmod>2026-07-27T21:54:53.768Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_pveff_lesson02</loc>
<lastmod>2026-07-27T21:54:53.136Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy2_lesson04</loc>
<lastmod>2026-07-27T21:54:52.499Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_friction_smary_less2</loc>
<lastmod>2026-07-27T21:54:51.718Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_china_lesson02</loc>
<lastmod>2026-07-27T21:54:51.086Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_rock_lesson03</loc>
<lastmod>2026-07-27T21:54:50.463Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_robotsandhumans_less1</loc>
<lastmod>2026-07-27T21:54:49.837Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy2_lesson03</loc>
<lastmod>2026-07-27T21:54:49.205Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_bio_lesson04</loc>
<lastmod>2026-07-27T21:54:48.558Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_lunar_muscle_less</loc>
<lastmod>2026-07-27T21:54:48.009Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_natdis_lesson06</loc>
<lastmod>2026-07-27T21:54:47.357Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_navigation_lesson04</loc>
<lastmod>2026-07-27T21:54:46.693Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_nano_lesson02</loc>
<lastmod>2026-07-27T21:54:46.027Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_biomed_lesson02</loc>
<lastmod>2026-07-27T21:54:45.323Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_density_mary_less</loc>
<lastmod>2026-07-27T21:54:44.705Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_electricity_lesson01</loc>
<lastmod>2026-07-27T21:54:44.075Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_biomed_lesson04</loc>
<lastmod>2026-07-27T21:54:43.372Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_sep_mixtures_less1</loc>
<lastmod>2026-07-27T21:54:42.827Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_ourbodies_lesson01</loc>
<lastmod>2026-07-27T21:54:42.197Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_energymusic_mem_less</loc>
<lastmod>2026-07-27T21:54:41.637Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_marine_musc_less2</loc>
<lastmod>2026-07-27T21:54:40.912Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/pur_fluidpower_less1</loc>
<lastmod>2026-07-27T21:54:40.353Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/clem_waves_lesson05</loc>
<lastmod>2026-07-27T21:54:39.670Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_rock_lesson05</loc>
<lastmod>2026-07-27T21:54:39.042Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mars_lesson05</loc>
<lastmod>2026-07-27T21:54:38.195Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_brid_lesson05</loc>
<lastmod>2026-07-27T21:54:37.547Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_challenges_lesson02</loc>
<lastmod>2026-07-27T21:54:36.882Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_surgicaldevices_tech_less</loc>
<lastmod>2026-07-27T21:54:36.262Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_bio_lesson01</loc>
<lastmod>2026-07-27T21:54:35.631Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mars_lesson01</loc>
<lastmod>2026-07-27T21:54:34.426Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson08</loc>
<lastmod>2026-07-27T21:54:33.798Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_solarcar_tech_less</loc>
<lastmod>2026-07-27T21:54:33.193Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mars_lesson03</loc>
<lastmod>2026-07-27T21:54:32.364Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_desal_lesson01</loc>
<lastmod>2026-07-27T21:54:31.743Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_space8_lesson03</loc>
<lastmod>2026-07-27T21:54:31.128Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson03</loc>
<lastmod>2026-07-27T21:54:30.453Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_bernoulli_lesson01</loc>
<lastmod>2026-07-27T21:54:29.917Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/usf_stormwater_lesson02</loc>
<lastmod>2026-07-27T21:54:29.240Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_8</loc>
<lastmod>2026-07-27T21:54:28.427Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_10</loc>
<lastmod>2026-07-27T21:54:27.704Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_9</loc>
<lastmod>2026-07-27T21:54:26.991Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_simp_machines_lesson02</loc>
<lastmod>2026-07-27T21:54:26.382Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mars_lesson04</loc>
<lastmod>2026-07-27T21:54:25.707Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mars_lesson06</loc>
<lastmod>2026-07-27T21:54:24.787Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson07</loc>
<lastmod>2026-07-27T21:54:23.989Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_virus_mary_less</loc>
<lastmod>2026-07-27T21:54:23.451Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_decomposers_mary_less</loc>
<lastmod>2026-07-27T21:54:22.910Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_computerprogram_lesson02</loc>
<lastmod>2026-07-27T21:54:22.125Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_computerprogram_lesson01</loc>
<lastmod>2026-07-27T21:54:21.495Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_computerprogram_lesson03</loc>
<lastmod>2026-07-27T21:54:20.681Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_junit_lesson01</loc>
<lastmod>2026-07-27T21:54:20.135Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_marine_musc_less</loc>
<lastmod>2026-07-27T21:54:19.541Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_heartvalve_tech_less</loc>
<lastmod>2026-07-27T21:54:18.378Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/mis_pharma_lesson01</loc>
<lastmod>2026-07-27T21:54:17.810Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_bubble_mary_less</loc>
<lastmod>2026-07-27T21:54:17.150Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_powergen_tech_less</loc>
<lastmod>2026-07-27T21:54:16.591Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/mis_biosensors_lesson01</loc>
<lastmod>2026-07-27T21:54:16.044Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_feelbetter_lesson01</loc>
<lastmod>2026-07-27T21:54:15.389Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_feelbetter_lesson02</loc>
<lastmod>2026-07-27T21:54:14.740Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_biomimicry_less2</loc>
<lastmod>2026-07-27T21:54:13.992Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_polymer_lesson01</loc>
<lastmod>2026-07-27T21:54:13.416Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_waterqtnew_lesson01</loc>
<lastmod>2026-07-27T21:54:12.831Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_simp_machines_lesson05</loc>
<lastmod>2026-07-27T21:54:12.197Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_pveff_lesson04</loc>
<lastmod>2026-07-27T21:54:11.579Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_enveng_lesson01</loc>
<lastmod>2026-07-27T21:54:10.929Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_housing_lesson03</loc>
<lastmod>2026-07-27T21:54:10.279Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/usf_flocculant_lesson01</loc>
<lastmod>2026-07-27T21:54:09.744Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_enveng_lesson07</loc>
<lastmod>2026-07-27T21:54:09.092Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_heartvalves_lesson02</loc>
<lastmod>2026-07-27T21:54:08.499Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_heartvalves_lesson01</loc>
<lastmod>2026-07-27T21:54:08.088Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_graphtheory_lesson01</loc>
<lastmod>2026-07-27T21:54:07.523Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_soundandlight_lesson8</loc>
<lastmod>2026-07-27T21:54:06.897Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_eenergy_mem_less</loc>
<lastmod>2026-07-27T21:54:06.342Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_biomimicry_less3</loc>
<lastmod>2026-07-27T21:54:05.707Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_dams_lesson07</loc>
<lastmod>2026-07-27T21:54:05.074Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_dams_lesson02</loc>
<lastmod>2026-07-27T21:54:04.425Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_rockets_lesson01</loc>
<lastmod>2026-07-27T21:54:03.796Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_3</loc>
<lastmod>2026-07-27T21:54:02.922Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_piezo_lesson01</loc>
<lastmod>2026-07-27T21:54:02.384Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_plainsight_lesson01</loc>
<lastmod>2026-07-27T21:54:01.830Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_fluidmechanics_lesson02</loc>
<lastmod>2026-07-27T21:54:01.213Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/jhu_cnetworks_lesson02</loc>
<lastmod>2026-07-27T21:54:00.528Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_robotic_vision_less2</loc>
<lastmod>2026-07-27T21:53:59.736Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_circuit_lesson01</loc>
<lastmod>2026-07-27T21:53:59.164Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_6</loc>
<lastmod>2026-07-27T21:53:58.333Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/jhu_cnetworks_lesson01</loc>
<lastmod>2026-07-27T21:53:57.713Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_2</loc>
<lastmod>2026-07-27T21:53:56.895Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_connection_lesson01</loc>
<lastmod>2026-07-27T21:53:56.319Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/torque_sue</loc>
<lastmod>2026-07-27T21:53:55.583Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_dna_lesson01</loc>
<lastmod>2026-07-27T21:53:55.009Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/tension</loc>
<lastmod>2026-07-27T21:53:54.304Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/usf_microbes_lesson01</loc>
<lastmod>2026-07-27T21:53:53.776Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_5</loc>
<lastmod>2026-07-27T21:53:53.046Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_4</loc>
<lastmod>2026-07-27T21:53:52.309Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_rooftop_lesson01</loc>
<lastmod>2026-07-27T21:53:51.762Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_enveng_lesson04</loc>
<lastmod>2026-07-27T21:53:50.968Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_dams_lesson08</loc>
<lastmod>2026-07-27T21:53:50.322Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_dna_lesson02</loc>
<lastmod>2026-07-27T21:53:49.681Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_heartvalves_lesson01</loc>
<lastmod>2026-07-27T21:53:49.061Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_7</loc>
<lastmod>2026-07-27T21:53:48.343Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/gat_visual_art_lesson01</loc>
<lastmod>2026-07-27T21:53:47.803Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_housing_lesson04</loc>
<lastmod>2026-07-27T21:53:46.522Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson05</loc>
<lastmod>2026-07-27T21:53:45.862Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_china_lesson01</loc>
<lastmod>2026-07-27T21:53:45.212Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_oddsofcancer_lesson02</loc>
<lastmod>2026-07-27T21:53:44.466Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_walk_lesson01</loc>
<lastmod>2026-07-27T21:53:43.937Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_linear_eqn_less2</loc>
<lastmod>2026-07-27T21:53:43.213Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_lighting_lesson01</loc>
<lastmod>2026-07-27T21:53:42.688Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_linear_eqn_less3</loc>
<lastmod>2026-07-27T21:53:41.986Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_weather_lesson03</loc>
<lastmod>2026-07-27T21:53:41.337Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_china_lesson03</loc>
<lastmod>2026-07-27T21:53:40.711Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_linear_eqn_less5</loc>
<lastmod>2026-07-27T21:53:39.734Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/mis_eyes_lesson01</loc>
<lastmod>2026-07-27T21:53:39.191Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_dig_mapping_less1</loc>
<lastmod>2026-07-27T21:53:38.643Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_dig_mapping_less2</loc>
<lastmod>2026-07-27T21:53:37.938Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/usf_biorecycling_lesson01</loc>
<lastmod>2026-07-27T21:53:37.362Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_weather_lesson02</loc>
<lastmod>2026-07-27T21:53:36.677Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_cells_lesson02</loc>
<lastmod>2026-07-27T21:53:36.036Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_accelerometer_lesson02</loc>
<lastmod>2026-07-27T21:53:35.442Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_cancer_lesson3</loc>
<lastmod>2026-07-27T21:53:34.654Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_landfill_music_less</loc>
<lastmod>2026-07-27T21:53:34.118Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_appinventor_lesson01</loc>
<lastmod>2026-07-27T21:53:33.585Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_oddsofcancer_lesson04</loc>
<lastmod>2026-07-27T21:53:32.809Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_troll_lesson01</loc>
<lastmod>2026-07-27T21:53:32.199Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_troll_lesson04</loc>
<lastmod>2026-07-27T21:53:31.567Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_python_lesson01</loc>
<lastmod>2026-07-27T21:53:31.040Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_lesson1_flow_rate_experiment</loc>
<lastmod>2026-07-27T21:53:30.507Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_bmd_less1</loc>
<lastmod>2026-07-27T21:53:29.902Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_membrane_lesson1</loc>
<lastmod>2026-07-27T21:53:29.290Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_oddsofcancer_lesson03</loc>
<lastmod>2026-07-27T21:53:27.952Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_perm_usman_less</loc>
<lastmod>2026-07-27T21:53:27.425Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_life_lesson01</loc>
<lastmod>2026-07-27T21:53:26.902Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_swing_lesson01</loc>
<lastmod>2026-07-27T21:53:26.364Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_hybrid_design_less4</loc>
<lastmod>2026-07-27T21:53:25.681Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_skeletal_system_less1</loc>
<lastmod>2026-07-27T21:53:25.066Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson02</loc>
<lastmod>2026-07-27T21:53:24.454Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_simp_machines_lesson04</loc>
<lastmod>2026-07-27T21:53:23.248Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_cancer_lesson2</loc>
<lastmod>2026-07-27T21:53:22.506Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_hybrid_design_less1</loc>
<lastmod>2026-07-27T21:53:21.968Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_handheld_lesson01</loc>
<lastmod>2026-07-27T21:53:21.436Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson03</loc>
<lastmod>2026-07-27T21:53:20.799Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_electricity_lesson04</loc>
<lastmod>2026-07-27T21:53:20.170Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_human_lesson10</loc>
<lastmod>2026-07-27T21:53:19.499Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_sensorswork_lesson05</loc>
<lastmod>2026-07-27T21:53:18.851Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_human_lesson09</loc>
<lastmod>2026-07-27T21:53:18.066Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_human_lesson08</loc>
<lastmod>2026-07-27T21:53:17.395Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_human_lesson05</loc>
<lastmod>2026-07-27T21:53:16.726Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_human_lesson03</loc>
<lastmod>2026-07-27T21:53:16.033Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/usf_maxwell_lesson01</loc>
<lastmod>2026-07-27T21:53:15.480Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_hp_lesson_acids</loc>
<lastmod>2026-07-27T21:53:14.857Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_soundandlight_lesson1</loc>
<lastmod>2026-07-27T21:53:14.228Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_earth_lesson2</loc>
<lastmod>2026-07-27T21:53:13.037Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_earth_lesson3</loc>
<lastmod>2026-07-27T21:53:12.480Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_navigation_lesson10</loc>
<lastmod>2026-07-27T21:53:11.804Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson04</loc>
<lastmod>2026-07-27T21:53:10.978Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy2_lesson09</loc>
<lastmod>2026-07-27T21:53:10.281Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mag_lesson2</loc>
<lastmod>2026-07-27T21:53:09.118Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_surg_lesson01</loc>
<lastmod>2026-07-27T21:53:08.480Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_faucets_lesson01</loc>
<lastmod>2026-07-27T21:53:07.911Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_sensorswork_lesson04</loc>
<lastmod>2026-07-27T21:53:07.107Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson07</loc>
<lastmod>2026-07-27T21:53:06.334Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_bio_lesson03</loc>
<lastmod>2026-07-27T21:53:05.689Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson08</loc>
<lastmod>2026-07-27T21:53:04.834Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_simp_machines_lesson03</loc>
<lastmod>2026-07-27T21:53:04.164Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_pirates_lesson01</loc>
<lastmod>2026-07-27T21:53:03.594Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson06</loc>
<lastmod>2026-07-27T21:53:02.861Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson01</loc>
<lastmod>2026-07-27T21:53:02.226Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_drink_lesson01</loc>
<lastmod>2026-07-27T21:53:01.667Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_dams_lesson04</loc>
<lastmod>2026-07-27T21:53:00.983Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_surfacetensionunit_less1</loc>
<lastmod>2026-07-27T21:53:00.355Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson04</loc>
<lastmod>2026-07-27T21:52:59.731Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_lesson2_supplies_tg</loc>
<lastmod>2026-07-27T21:52:59.116Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_navigation_lesson07</loc>
<lastmod>2026-07-27T21:52:58.453Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_space8_lesson02</loc>
<lastmod>2026-07-27T21:52:57.825Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_lesson3_shelter_tg</loc>
<lastmod>2026-07-27T21:52:57.234Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson10</loc>
<lastmod>2026-07-27T21:52:56.678Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/ucd_heat_lesson01</loc>
<lastmod>2026-07-27T21:52:56.139Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson08</loc>
<lastmod>2026-07-27T21:52:55.459Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_robots_less</loc>
<lastmod>2026-07-27T21:52:54.689Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_nanoparticles_lesson01</loc>
<lastmod>2026-07-27T21:52:54.058Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_soundandlight_lesson3</loc>
<lastmod>2026-07-27T21:52:53.240Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_soundandlight_lesson2</loc>
<lastmod>2026-07-27T21:52:52.457Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/usf_stormwater_lesson01</loc>
<lastmod>2026-07-27T21:52:51.843Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson02</loc>
<lastmod>2026-07-27T21:52:51.173Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_body_lesson01</loc>
<lastmod>2026-07-27T21:52:50.621Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_sun_lesson01</loc>
<lastmod>2026-07-27T21:52:50.038Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_lesson5_filterwater_tg</loc>
<lastmod>2026-07-27T21:52:49.422Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_earth_lesson04</loc>
<lastmod>2026-07-27T21:52:48.803Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_skeletal_system_less2</loc>
<lastmod>2026-07-27T21:52:48.060Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_sensorswork_lesson06</loc>
<lastmod>2026-07-27T21:52:47.304Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_navigation_lesson05</loc>
<lastmod>2026-07-27T21:52:46.624Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_cells_lesson01</loc>
<lastmod>2026-07-27T21:52:45.982Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson10</loc>
<lastmod>2026-07-27T21:52:45.260Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_latex_lesson01</loc>
<lastmod>2026-07-27T21:52:44.755Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_troll_lesson03</loc>
<lastmod>2026-07-27T21:52:43.977Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_motion_lesson1</loc>
<lastmod>2026-07-27T21:52:43.385Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_music_choi_less</loc>
<lastmod>2026-07-27T21:52:42.843Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_doyousee_lesson01</loc>
<lastmod>2026-07-27T21:52:42.308Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_lesson6_density_tg</loc>
<lastmod>2026-07-27T21:52:41.686Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_doesitwork_lesson01</loc>
<lastmod>2026-07-27T21:52:41.160Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_cleanupmess_less1</loc>
<lastmod>2026-07-27T21:52:40.579Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_nanoparticles_lesson02</loc>
<lastmod>2026-07-27T21:52:39.794Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_soundandlight_lesson5</loc>
<lastmod>2026-07-27T21:52:39.155Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_amradio_tech_less</loc>
<lastmod>2026-07-27T21:52:38.598Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_soundandlight_lesson4</loc>
<lastmod>2026-07-27T21:52:37.809Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_soundandlight_lesson6</loc>
<lastmod>2026-07-27T21:52:37.132Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_navigation_lesson08</loc>
<lastmod>2026-07-27T21:52:36.437Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_foodiron_music_less</loc>
<lastmod>2026-07-27T21:52:36.014Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mag_lesson1</loc>
<lastmod>2026-07-27T21:52:35.454Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/mis_neuron_lesson01</loc>
<lastmod>2026-07-27T21:52:34.890Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_navigation_lesson06</loc>
<lastmod>2026-07-27T21:52:34.155Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_gps_lesson01</loc>
<lastmod>2026-07-27T21:52:33.596Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/wst_environmental_lesson03</loc>
<lastmod>2026-07-27T21:52:32.903Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_bmd_less3</loc>
<lastmod>2026-07-27T21:52:32.129Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_sound_lesson01</loc>
<lastmod>2026-07-27T21:52:31.519Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_bmd_less4</loc>
<lastmod>2026-07-27T21:52:30.189Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_bmd_less2</loc>
<lastmod>2026-07-27T21:52:29.580Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_nanoparticles_lesson03</loc>
<lastmod>2026-07-27T21:52:28.812Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson04</loc>
<lastmod>2026-07-27T21:52:28.187Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_drops_mary_less</loc>
<lastmod>2026-07-27T21:52:27.571Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_sensorswork_lesson01</loc>
<lastmod>2026-07-27T21:52:26.889Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_sensorswork_lesson02</loc>
<lastmod>2026-07-27T21:52:26.220Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_latex_lesson02</loc>
<lastmod>2026-07-27T21:52:25.566Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_bio_lesson05</loc>
<lastmod>2026-07-27T21:52:24.902Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_sound_lesson03</loc>
<lastmod>2026-07-27T21:52:24.276Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_linear_eqn_less1</loc>
<lastmod>2026-07-27T21:52:23.752Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson08</loc>
<lastmod>2026-07-27T21:52:23.123Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson06</loc>
<lastmod>2026-07-27T21:52:22.450Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_floppy_lesson01</loc>
<lastmod>2026-07-27T21:52:21.785Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_hybrid_design_less3</loc>
<lastmod>2026-07-27T21:52:21.010Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/ucd_energy_lesson03</loc>
<lastmod>2026-07-27T21:52:20.232Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_surfacetensionunit_less2</loc>
<lastmod>2026-07-27T21:52:19.475Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy_lesson02</loc>
<lastmod>2026-07-27T21:52:18.837Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_lesson4_food_tg</loc>
<lastmod>2026-07-27T21:52:18.232Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_cleanupmess_less3</loc>
<lastmod>2026-07-27T21:52:17.453Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson07</loc>
<lastmod>2026-07-27T21:52:16.778Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_evolution_mary_less</loc>
<lastmod>2026-07-27T21:52:16.209Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_yeast_mary_less</loc>
<lastmod>2026-07-27T21:52:15.469Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_heat_lesson01</loc>
<lastmod>2026-07-27T21:52:14.902Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_biomed_lesson08</loc>
<lastmod>2026-07-27T21:52:13.700Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_balloons_lesson01</loc>
<lastmod>2026-07-27T21:52:13.137Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_cancer_lesson1</loc>
<lastmod>2026-07-27T21:52:12.525Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_1</loc>
<lastmod>2026-07-27T21:52:11.880Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_floppy_lesson02</loc>
<lastmod>2026-07-27T21:52:10.790Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_aerogel_lesson01</loc>
<lastmod>2026-07-27T21:52:10.256Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_ourbodies_lesson03</loc>
<lastmod>2026-07-27T21:52:09.624Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_rockets_lesson04</loc>
<lastmod>2026-07-27T21:52:08.802Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_navigation_lesson09</loc>
<lastmod>2026-07-27T21:52:08.087Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_cellresp_mary_less</loc>
<lastmod>2026-07-27T21:52:07.493Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_surg_lesson05</loc>
<lastmod>2026-07-27T21:52:06.717Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/usf_dome_lesson01</loc>
<lastmod>2026-07-27T21:52:06.184Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_sound_lesson02</loc>
<lastmod>2026-07-27T21:52:05.018Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_rivers_lesson01</loc>
<lastmod>2026-07-27T21:52:03.875Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_retcoulter_les1</loc>
<lastmod>2026-07-27T21:52:03.311Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uta_dense_lesson01</loc>
<lastmod>2026-07-27T21:52:02.769Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_filtering_lesson01</loc>
<lastmod>2026-07-27T21:52:02.217Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_cells_lesson03</loc>
<lastmod>2026-07-27T21:52:01.568Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_taste_mary_less</loc>
<lastmod>2026-07-27T21:52:01.020Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_dimension_tech_less</loc>
<lastmod>2026-07-27T21:52:00.401Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_flyingtshirt_lesson01</loc>
<lastmod>2026-07-27T21:51:59.433Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_lifescience_lesson01</loc>
<lastmod>2026-07-27T21:51:58.813Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson05</loc>
<lastmod>2026-07-27T21:51:58.170Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/clem_waves_lesson01</loc>
<lastmod>2026-07-27T21:51:57.084Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy_lesson04</loc>
<lastmod>2026-07-27T21:51:56.489Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy_lesson05</loc>
<lastmod>2026-07-27T21:51:55.744Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_biomed_lesson03</loc>
<lastmod>2026-07-27T21:51:55.129Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson10</loc>
<lastmod>2026-07-27T21:51:53.377Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson02</loc>
<lastmod>2026-07-27T21:51:52.719Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_foodpackage_music_less</loc>
<lastmod>2026-07-27T21:51:51.641Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csu_polymer_lesson01</loc>
<lastmod>2026-07-27T21:51:51.104Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_pveff_lesson03</loc>
<lastmod>2026-07-27T21:51:50.470Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_housing_lesson02</loc>
<lastmod>2026-07-27T21:51:49.835Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_biomed_lesson01</loc>
<lastmod>2026-07-27T21:51:49.105Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_friction_smary_less</loc>
<lastmod>2026-07-27T21:51:48.480Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_rockets_lesson02</loc>
<lastmod>2026-07-27T21:51:47.857Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy2_lesson05</loc>
<lastmod>2026-07-27T21:51:47.225Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy2_lesson08</loc>
<lastmod>2026-07-27T21:51:46.535Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_natdis_lesson03</loc>
<lastmod>2026-07-27T21:51:45.856Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_hockey_music_less</loc>
<lastmod>2026-07-27T21:51:45.294Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_photo_mary_less</loc>
<lastmod>2026-07-27T21:51:44.148Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_liftoff_lesson01</loc>
<lastmod>2026-07-27T21:51:43.618Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_earth_lesson07</loc>
<lastmod>2026-07-27T21:51:43.011Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_trusses_lesson01</loc>
<lastmod>2026-07-27T21:51:42.455Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_intro_lesson02</loc>
<lastmod>2026-07-27T21:51:41.815Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_cleanupmess_less2</loc>
<lastmod>2026-07-27T21:51:41.074Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/ucd_energy_lesson02</loc>
<lastmod>2026-07-27T21:51:40.330Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_lesson7_reporting_tg</loc>
<lastmod>2026-07-27T21:51:39.136Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/clem_waves_lesson03</loc>
<lastmod>2026-07-27T21:51:38.634Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_earth_lesson08</loc>
<lastmod>2026-07-27T21:51:37.995Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_solar_lesson02</loc>
<lastmod>2026-07-27T21:51:37.253Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_fracture_lesson01</loc>
<lastmod>2026-07-27T21:51:36.174Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_biomed_lesson10</loc>
<lastmod>2026-07-27T21:51:35.514Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-3044-robot-controller-line-follower-activity</loc>
<lastmod>2026-07-29T20:54:14.461Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst-3033-synthetic-biology-new-genes-proteins-activity</loc>
<lastmod>2026-07-27T21:51:32.367Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-3050-memristor-materials-engineering-design-activity</loc>
<lastmod>2026-07-27T21:51:26.626Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uok-3027-get-slimy-exploring-matter-activity</loc>
<lastmod>2026-07-27T21:51:25.708Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/eclips-3046-nasa-eclips-shower-clock-activity</loc>
<lastmod>2026-07-27T21:51:26.186Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-3045-unbeweavably-strong-structutes-materials-activity</loc>
<lastmod>2026-07-27T21:51:16.510Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-3040-cell-membranes-osmosis-gummy-bears</loc>
<lastmod>2026-07-27T21:51:12.693Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/jpl-3055-light-detector-space-communications-activity</loc>
<lastmod>2026-07-27T21:51:12.239Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/jpl-3053-mars-thermos-design-heat-transfer</loc>
<lastmod>2026-07-27T21:51:11.348Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/jpl-3049-mars-sample-return-coding-challenge</loc>
<lastmod>2026-07-27T21:51:10.479Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/bgsu-2919-all-charged-up-homemade-capacitor-activity</loc>
<lastmod>2026-07-27T21:51:05.336Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uod-3034-beyond-binary-building-blocks-digital-activity</loc>
<lastmod>2026-07-27T21:51:04.316Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-3043-make-it-clean-cleaning-product-activity</loc>
<lastmod>2026-07-27T21:51:03.811Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/jpl-3042-mars-chemistry-coding-challenge-activity</loc>
<lastmod>2026-07-27T21:51:02.824Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uod-3017-microchips-photolithography-light-activity</loc>
<lastmod>2026-07-27T21:51:02.391Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uok-3030-sweet-surfactants-surface-tension-activity</loc>
<lastmod>2026-07-27T21:51:01.943Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uok-3025-polymers-plastic-bioplastics-activity</loc>
<lastmod>2026-07-27T21:51:01.450Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uok-3026-additives-affect-surface-tension-activity</loc>
<lastmod>2026-07-27T21:51:00.542Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uod-3024-rush-hour-mayhem-logic-gates-activity</loc>
<lastmod>2026-07-27T21:51:00.087Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/tam-3022-ethical-twist-engineering-design-activity</loc>
<lastmod>2026-07-27T21:50:58.993Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uok-3021-smart-prosthetic-hand-grip-arduino-activity</loc>
<lastmod>2026-07-27T21:50:58.079Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/fiu-3023-light-based-diagnostic-device-activity</loc>
<lastmod>2026-07-27T21:50:57.592Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/clem-3014-robotics-pick-place-challenge-activity</loc>
<lastmod>2026-07-27T21:50:56.260Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uok-3020-mission-myelin-model-damage-repair-activity</loc>
<lastmod>2026-07-27T21:50:50.613Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-3008-fluid-forces-bridges-hydraulic-systems-activity</loc>
<lastmod>2026-07-27T21:50:50.169Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usm-3009-biome-robots-polymers-survival-activity</loc>
<lastmod>2026-07-27T21:50:49.141Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/clem-3005-sole-survivors-energy-orthotics-activity</loc>
<lastmod>2026-07-27T21:50:48.691Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uon-2997-ethical-hacking-lab-activity</loc>
<lastmod>2026-07-27T21:50:45.319Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uol-3007-fast-track-factory-mass-production-activity</loc>
<lastmod>2026-07-27T21:50:52.077Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/jpl-3028-robotic-arm-challenge-informal-learning-activity</loc>
<lastmod>2025-11-06T00:48:27.484Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ind-3011-straws-strings-fingers-informal-learning-activity</loc>
<lastmod>2025-11-04T19:39:11.535Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uok-2910-surfactants-protein-aggregation-pharmaceuticals-activity</loc>
<lastmod>2026-07-27T21:50:39.534Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uod-2953-materials-down-hill-activity</loc>
<lastmod>2026-07-27T21:50:56.712Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-3002-mines-mobiles-aqueous-solutions-activity</loc>
<lastmod>2026-07-27T21:50:36.389Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/oks-2995-unlocking-secrets-semiconductors-logic-gates-activity</loc>
<lastmod>2026-07-27T21:50:32.661Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uon-2999-ethical-hacking-lab-podman-activity</loc>
<lastmod>2026-07-27T21:50:32.205Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uol-3003-craft-production-efficiency-profit-purpose-activity</loc>
<lastmod>2026-07-27T21:50:23.166Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uok-2996-statistical-analysis-noise-detection-soundproofing</loc>
<lastmod>2026-07-27T21:50:51.567Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis-2924-microcontroller-instruments-medical-use-activity</loc>
<lastmod>2026-07-27T21:50:23.645Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ind-2993-arduino-geiger-counter-activity</loc>
<lastmod>2026-07-27T21:50:14.278Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/tam-2983-life-cycle-energy-buildings-activity</loc>
<lastmod>2026-07-27T21:50:58.545Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uod-2964-toilet-paper-trouble-time-activity</loc>
<lastmod>2026-07-27T21:50:02.850Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-2982-fairy-tale-engineering-three-little-pigs-activity</loc>
<lastmod>2026-07-27T21:50:01.345Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2989-microplastics-filtration-solutions-activity</loc>
<lastmod>2026-07-27T21:49:45.703Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-2979-diy-microscope-challenge-light-activity</loc>
<lastmod>2026-07-27T21:49:45.243Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2975-sediment-transport-bayou-design-solutions</loc>
<lastmod>2026-07-27T21:49:43.912Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2938-neural-data-graphs-python-activity</loc>
<lastmod>2026-07-27T21:49:43.338Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2937-neural-data-processing-database-python-activity</loc>
<lastmod>2026-07-27T21:49:42.720Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2936-virtual-lab-neuroscience-microcontrollers-activity</loc>
<lastmod>2026-07-27T21:49:52.665Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2935-mapping-neuron-recuitment-muscle-action-activity</loc>
<lastmod>2026-07-27T21:49:42.089Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2977-neuromaze-neural-pathways-robotic-navigation-activity</loc>
<lastmod>2026-07-27T21:49:29.301Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2972-muscle-biopotential-signals-emg-sensors-activity</loc>
<lastmod>2026-07-27T21:49:56.319Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uod-2967-greater-good-designing-public-center-activity</loc>
<lastmod>2026-07-27T21:49:27.976Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uod-2974-lost-explorer-making-cyanotype-print-maps</loc>
<lastmod>2026-07-27T21:49:27.515Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-2980-drop-ball-material-physics-motion-quadratics</loc>
<lastmod>2026-07-27T21:49:27.063Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2985-sweet-machine-learning-data-diabetes-activity</loc>
<lastmod>2026-07-27T21:50:30.626Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/clem-2888-investigations-nitinol-metal-shape-memory</loc>
<lastmod>2026-07-27T21:49:25.687Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uod-2963-dragging-dilemma-overcoming-friction-move-rocks-activity</loc>
<lastmod>2026-07-27T21:50:46.849Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2900-brain-processing-senses-helmet-design-activity</loc>
<lastmod>2026-07-27T21:49:23.294Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2954-human-emg-signals-robot-movements-activity</loc>
<lastmod>2026-07-27T21:49:28.415Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2952-tone-shock-conditioning-activity3</loc>
<lastmod>2026-07-27T21:49:19.044Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2952-neuron-electrical-impulses-activity1</loc>
<lastmod>2026-07-27T21:49:20.175Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2952-fear-pavlovs-dog-activity2</loc>
<lastmod>2026-07-27T21:49:19.621Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uok-2949-safe-drinking-water-filtration-system-activity</loc>
<lastmod>2026-07-27T21:50:48.227Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ind-2962-arduino-air-quality-monitor-activity</loc>
<lastmod>2026-07-27T21:49:18.617Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2947-genome-engineer-crispr-cas9-genetic-disorder-activity</loc>
<lastmod>2026-07-27T21:49:17.204Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usu-2944-maglev-trains-electric-magnetic-field-activity</loc>
<lastmod>2026-07-27T21:51:10.917Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis-2925-python-functions-copilot-computer-science-activity</loc>
<lastmod>2026-07-27T21:49:16.769Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/bos-2920-elisa-point-of-care-devices-antigen-activity</loc>
<lastmod>2026-07-27T21:49:17.643Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-2939-rising-sea-levels-density-mixtures-solutions-activity</loc>
<lastmod>2026-07-27T21:49:16.346Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uok-2903-sustainable-separations-chemical-engineering-activity</loc>
<lastmod>2026-07-27T21:49:15.902Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2926-under-pressure-arduino-sensor-force-activity</loc>
<lastmod>2026-07-27T21:49:15.438Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/nds-2865-forest-fires-cars-co2-emissions-activity</loc>
<lastmod>2026-07-27T21:49:13.945Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2842-machine-free-manufacturing-process-activity</loc>
<lastmod>2026-07-27T21:50:24.578Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2929-heat-capacity-water-oil-materials-activity</loc>
<lastmod>2026-07-27T21:49:13.512Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bgsu-2915-projectile-motion-arduino-launcher-competition-activity</loc>
<lastmod>2026-07-27T21:49:13.059Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2918-optical-telescope-building-activity</loc>
<lastmod>2026-07-27T21:49:12.621Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2941-bright-ideas-light-reflection-microbits-activity</loc>
<lastmod>2026-07-27T21:49:10.341Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uok-2943-helping-hands-assisted-device-multiple-sclerosis-activity</loc>
<lastmod>2026-07-27T21:49:22.220Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/umo-2942-mindful-messages-communication-solutions-activity</loc>
<lastmod>2026-07-27T21:49:09.393Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2858-biodegradable-leaves-nontoxic-packing-material</loc>
<lastmod>2026-07-27T21:49:08.944Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/nds-2866-environment-solutions-river-dynamics-mosquito-activity</loc>
<lastmod>2026-07-27T21:49:07.605Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2928-tap-testing-acoustic-sleuthing-activity</loc>
<lastmod>2026-07-27T21:49:06.156Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2873-scrub-scum-shine-materials-matter</loc>
<lastmod>2026-07-27T21:49:05.695Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2824-stars-spectrometer-spectroscopy-activity</loc>
<lastmod>2026-07-27T21:49:05.241Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2914-density-solutions-mixture-design-process-activity</loc>
<lastmod>2026-07-27T21:49:08.511Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2817-soft-materials-tactile-sensing-activity</loc>
<lastmod>2026-07-27T21:49:02.651Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2885-power-produce-fruits-veggies-solar-cells-activity</loc>
<lastmod>2026-07-27T21:49:08.076Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2884-save-clothes-avocados-matter-properties-activity</loc>
<lastmod>2026-07-27T21:49:26.575Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/umo-2921-panic-attack-brain-computer-nervous-system-activity</loc>
<lastmod>2026-07-27T21:49:02.177Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2689-exploring-matter-rock-candy-activity</loc>
<lastmod>2026-07-27T21:50:33.139Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoo-2917-gatorade-gravity-machine-structure-design-activity</loc>
<lastmod>2026-07-27T21:49:01.734Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2894-paper-football-physics-activity</loc>
<lastmod>2026-07-27T21:49:01.305Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2754-mechanized-farm-equipment-design-activity</loc>
<lastmod>2026-07-27T21:51:06.800Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2615-simon-decoded-computational-thinking-activity</loc>
<lastmod>2026-07-27T21:49:00.284Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2898-protective-fashion-beach-edition-activity</loc>
<lastmod>2026-07-27T21:48:59.844Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2852-international-market-accessibility-engineering-design</loc>
<lastmod>2026-07-27T21:49:10.822Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2702-asymmetric-membranes-microfiltration-algae</loc>
<lastmod>2026-07-27T21:48:57.826Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2830-prototyping-engineering-solutions-cad</loc>
<lastmod>2026-07-27T21:48:59.412Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/nds-2787-earthquake-effects-structural-integrity-building</loc>
<lastmod>2026-07-27T21:49:26.125Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uol-2853-clustering-exploring-periodic-table-elements-activity</loc>
<lastmod>2026-07-27T21:48:53.773Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2845-aquaponics-water-system-bolivia-activity</loc>
<lastmod>2026-07-27T21:49:11.278Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2820-arduino-warning-system-activity</loc>
<lastmod>2026-07-27T21:50:07.985Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2846-raise-roof-engineering-leakproof-roofs-activity</loc>
<lastmod>2026-07-27T21:49:11.704Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2849-engineering-sapling-guard-recycled-materials</loc>
<lastmod>2026-07-27T21:49:58.295Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2804-electrophoresis-gel-box-engineering-activity</loc>
<lastmod>2026-07-27T21:48:44.067Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2831-touch-sensor-arduino-trigger-led-buzzer</loc>
<lastmod>2026-07-27T21:48:43.633Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2794-materials-matter-composites-properties-activity</loc>
<lastmod>2026-07-27T21:48:35.671Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2836-designing-prototypes-save-coral-reefs-activity</loc>
<lastmod>2026-07-27T21:50:44.834Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2802-distance-displacement-measurement-activity</loc>
<lastmod>2026-07-27T21:48:24.933Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis-2810-healthy-cancerous-cells-arduino-activity</loc>
<lastmod>2026-07-27T21:48:24.511Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nds-2779-flood-causes-mitigation-strategies-activity</loc>
<lastmod>2026-07-27T21:49:55.406Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh-2800-power-drag-lab-work-energy</loc>
<lastmod>2026-07-27T21:48:36.094Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2789-polyvalency-polyresistance-organisms-bacteriophage-activity</loc>
<lastmod>2026-07-27T21:48:22.348Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2822-machine-learning-interactive-journey-activity</loc>
<lastmod>2026-07-27T21:48:21.900Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2840-engineering-friction-grip-activity</loc>
<lastmod>2026-07-27T21:50:25.641Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2847-ping-pong-ball-retriever-engineering-challenge</loc>
<lastmod>2026-07-27T21:50:30.122Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2795-fluid-viscosity-temperature-activity</loc>
<lastmod>2026-07-27T21:48:21.477Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/bos-2703-insulator-design-challenge-activity</loc>
<lastmod>2026-07-27T21:49:59.759Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh-2792-wave-refractions-angle-activity</loc>
<lastmod>2026-07-27T21:48:17.804Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2825-creative-engineering-electric-vehicle-design</loc>
<lastmod>2026-07-27T21:49:21.618Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh-2797-robomentum-velocity-mass-momentum-activity</loc>
<lastmod>2026-07-27T21:48:17.373Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2763-exploring-light-holographic-chocolate-activity</loc>
<lastmod>2026-07-27T21:50:03.328Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2803-solar-powered-car-design-activity</loc>
<lastmod>2026-07-27T21:48:16.922Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub-2827-tinkercad-circuits-ev-motor-workshop</loc>
<lastmod>2026-07-27T21:51:24.086Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2826-tinkercad-3d-design-ev-concept-car-workshop</loc>
<lastmod>2026-07-27T21:49:04.227Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2812-environmental-justice-storymap-collection-activity</loc>
<lastmod>2026-07-27T21:51:31.927Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2812-environmental-impact-storymap-collection-activity</loc>
<lastmod>2026-07-27T21:49:23.727Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucb-2791-periodic-table-intro-elements-activity</loc>
<lastmod>2026-07-27T21:48:01.359Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ind-2837-earth-critical-zone-edible-model-cross-sections</loc>
<lastmod>2026-07-27T21:47:59.193Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2785-heat-transfer-solar-dryers-activity</loc>
<lastmod>2026-07-27T21:47:58.183Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2819-python-conditionals-artificial-intelligence-technology</loc>
<lastmod>2026-07-27T21:47:57.763Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ind-2761-chasing-sun-solar-panel-activity</loc>
<lastmod>2026-07-27T21:48:00.927Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2643-amazing-hydrogels-polymers-activity</loc>
<lastmod>2026-07-27T21:51:34.959Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2781-recycle-water-cleaning-device-activity</loc>
<lastmod>2026-07-27T21:47:55.210Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2672-roller-coaster-energy-engineering-design</loc>
<lastmod>2026-07-27T21:49:21.158Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2766-gel-engineering-mixture-solution-activity</loc>
<lastmod>2026-07-27T21:48:04.617Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh-2765-concrete-composites-lab-activity</loc>
<lastmod>2026-07-27T21:47:52.315Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uod-2760-accessible-toys-visually-impaired-students</loc>
<lastmod>2026-07-27T21:50:03.772Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uow-2692-living-walls-arduino-sensing-toolkit</loc>
<lastmod>2026-07-27T21:47:51.882Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2764-clean-cooking-matters-activity</loc>
<lastmod>2026-07-27T21:49:12.172Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/bos-2701-3d-printing-cad-software-activity</loc>
<lastmod>2026-07-27T21:47:41.056Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/bos-2743-atmospheric-distortion-light-bubbles-air</loc>
<lastmod>2026-07-27T21:47:09.723Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2550-brain-waves-applications-analysis-activity</loc>
<lastmod>2026-07-27T21:51:30.962Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2742-operation-airdrop-protect-cargo-design</loc>
<lastmod>2026-07-27T21:48:00.052Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2723-environment-plants-soil-properties-activity</loc>
<lastmod>2026-07-27T21:47:41.489Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2716-designing-magnifiers-magnification-phenomenon</loc>
<lastmod>2026-07-27T21:47:06.884Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2712-prosthetics-power-engineering-design-activity</loc>
<lastmod>2026-07-27T21:50:47.318Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usm-2669-engineering-efficiency-alcoholic-fermentation</loc>
<lastmod>2026-07-27T21:46:59.152Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2644-crystal-creator-resistance-conductors-insulators</loc>
<lastmod>2026-07-27T21:46:58.688Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2461-soil-mechanics-science-activity</loc>
<lastmod>2026-07-27T21:47:13.932Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2640-pretty-colors-light-absorbence-activity</loc>
<lastmod>2026-07-27T21:50:04.668Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2693-musical-instruments-design-material-properties</loc>
<lastmod>2026-07-27T21:46:53.844Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uow-2675-electromagnetic-waves-radiation-spectrum-activity</loc>
<lastmod>2026-07-27T21:46:48.870Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uconn-2673-minimizing-pressure-optimizing-comfort-capacitance</loc>
<lastmod>2026-07-27T21:46:49.436Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/pur-2655-net-zero-ecological-building-design-activity</loc>
<lastmod>2026-07-27T21:46:54.312Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2745-hands-free-reading-structure-engineering-design</loc>
<lastmod>2026-07-27T21:48:00.474Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2696-animal-adaptation-fashion-show-activity</loc>
<lastmod>2026-07-27T21:48:43.142Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/utep-2663-rc-circuits-electricity-current-activity</loc>
<lastmod>2026-07-27T21:46:52.543Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh-2668-keep-heat-in-insulation-materials-activity</loc>
<lastmod>2026-07-27T21:46:52.960Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2709-seeing-sound-musical-art-waves-activity</loc>
<lastmod>2026-07-27T21:46:53.410Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2667-biodegradable-hydrogels-water-conservation</loc>
<lastmod>2026-07-27T21:49:06.600Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2558-exploration-ecg-emg-technologies-activity</loc>
<lastmod>2026-07-27T21:51:27.070Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2713-save-snails-designing-collapsible-barrier</loc>
<lastmod>2026-07-27T21:46:52.106Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2720-sinkhole-sinkhole-emergency-engineering-design-process</loc>
<lastmod>2026-07-27T21:50:01.827Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2711-fabricating-focus-tool-engineering-design-process</loc>
<lastmod>2026-07-27T21:46:51.675Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2704-oil-spill-clean-up-engineering-design-activity</loc>
<lastmod>2026-07-27T21:46:51.221Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/und-2664-alkane-resources-molecules-activity</loc>
<lastmod>2026-07-27T21:46:50.782Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uconn-2662-contractions-calculations-force-resistance-activity</loc>
<lastmod>2026-07-27T21:46:50.329Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2646-contaminated-water-mystery-activity</loc>
<lastmod>2026-07-27T21:46:49.877Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2719-award-design-structure-materials-activity</loc>
<lastmod>2026-07-27T21:45:49.358Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2631-algae-blooms-takeover-engineering-design-activity</loc>
<lastmod>2026-07-27T21:50:51.061Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2637-seed-trap-engineering-design-activity</loc>
<lastmod>2026-07-27T21:46:17.678Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/upitt-2616-cancer-treatments-engineering-design-process-activity</loc>
<lastmod>2026-07-27T21:45:34.777Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/upitt-2620-engineering-hydroponic-system-activity</loc>
<lastmod>2026-07-27T21:45:26.698Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2657-mission-impossible-voltaic-protocol-activity</loc>
<lastmod>2026-07-27T21:45:25.810Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2641-light-up-machines-building-fluorescent-prototype</loc>
<lastmod>2026-07-27T21:45:18.613Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2658-water-bottle-holder-engineering-design-activity</loc>
<lastmod>2026-07-27T21:45:18.178Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2638-light-dyes-exploring-bioluminescence-activity</loc>
<lastmod>2026-07-27T21:51:11.781Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2485-photocatalytic-delivery-system-maker-challenge</loc>
<lastmod>2022-08-18T23:38:01.002Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ced-2680-engineering-design-process-thinking</loc>
<lastmod>2026-07-27T21:51:14.325Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ced-2706-transportation-fuels-debate-engineering-design</loc>
<lastmod>2026-07-27T21:51:07.625Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ced-2707-carbon-footprints-transportation-greenhouse-gases</loc>
<lastmod>2026-07-27T21:49:03.644Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ced-2705-mouse-trap-cars-engineering-design</loc>
<lastmod>2026-07-27T21:49:03.063Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ced-2679-straw-bridges-design-challenge-activity</loc>
<lastmod>2026-07-27T21:51:13.768Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ced-2678-creative-crash-testing-car-challenge-activity</loc>
<lastmod>2026-07-27T21:51:21.451Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ced-2671-efficient-car-design-challenge-activity</loc>
<lastmod>2026-07-27T21:51:20.299Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ced-2670-newspaper-towers-engineering-design-activity</loc>
<lastmod>2026-07-27T21:51:20.848Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2636-carbon-emissions-3-5-activity</loc>
<lastmod>2026-07-27T21:44:49.182Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2635-carbon-emissions-carl-k-2-activity</loc>
<lastmod>2026-07-27T21:44:49.700Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2633-air-quality-weather-connections-3-5-activity</loc>
<lastmod>2026-07-27T21:48:57.278Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2632-air-quality-particulate-matter-k-2-activity</loc>
<lastmod>2026-07-27T21:48:58.295Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2622-machine-learning-diabetes-prediction</loc>
<lastmod>2026-07-27T21:45:02.918Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/upitt-2621-engineering-better-cast-design-activity</loc>
<lastmod>2026-07-27T21:44:45.868Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/fiu-2614-sensors-hearts-arduino-engineering-design</loc>
<lastmod>2026-07-27T21:49:20.726Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uow-2585-speed-sound-altitude-activity</loc>
<lastmod>2026-07-27T21:44:35.739Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/vpi-2594-watershed-delineation-activity</loc>
<lastmod>2026-07-27T21:50:07.121Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2630-engineering-seawall-storm-erosion-activity</loc>
<lastmod>2026-07-27T21:44:55.794Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2613-nature-solution-biomimicry-engineering</loc>
<lastmod>2026-07-27T21:49:57.842Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/vpi-2603-exploring-flow-rate-activity</loc>
<lastmod>2026-07-27T21:42:16.279Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2460-fun-leaf-chromotography-activity</loc>
<lastmod>2026-07-27T21:49:44.790Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/usu-2586-data-optimize-vending-machine</loc>
<lastmod>2026-07-27T21:47:15.559Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2629-snack-holder-recycled-materials-design-activity</loc>
<lastmod>2026-07-27T21:42:14.828Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2612-measuring-small-things-activity</loc>
<lastmod>2026-07-27T21:42:07.771Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2625-designing-communication-device-sound-activity</loc>
<lastmod>2026-07-27T21:46:31.621Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uow-2579-evaporation-transpiration-function-activity</loc>
<lastmod>2026-07-27T21:45:17.150Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/vpi-2595-paper-towers-pool-balls-challenge-pbl</loc>
<lastmod>2026-07-27T21:40:01.353Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2580-balance-liquid-coin-forces-activity</loc>
<lastmod>2026-07-27T21:49:04.796Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uom-2552-what-is-python-activity</loc>
<lastmod>2026-07-27T21:39:45.812Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2544-cell-structures-fluorescent-dyes-activity</loc>
<lastmod>2026-07-27T21:39:49.667Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2348-judgement-jellybeans-linear-model-activity</loc>
<lastmod>2026-07-27T21:49:46.707Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/umo-2547-jupyter-notebook-explore-waves-activity</loc>
<lastmod>2026-07-27T21:39:59.997Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cmu-2516-leaf-etchings-model-structure-photosynthesis</loc>
<lastmod>2026-07-27T21:46:29.760Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2317-wind-powered-car-engineering-design</loc>
<lastmod>2026-07-27T21:41:11.236Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usu-2577-improving-covid-procedures-school-engineering-design</loc>
<lastmod>2026-07-27T21:49:59.319Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uop-2575-modeling-nuclear-damage-cell-movement</loc>
<lastmod>2026-07-27T21:50:04.212Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uow-2546-post-launch-analysis-cosmic-radiation-activity3</loc>
<lastmod>2026-07-27T21:44:25.987Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uow-2546-high-altitude-balloon-launch-cosmic-radiation-activity2</loc>
<lastmod>2026-07-27T21:44:03.360Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uow-2456-building-payload-cosmic-radiation-activity1</loc>
<lastmod>2026-07-27T21:49:58.753Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/pur-2576-lunar-olympics-physics-online-activity</loc>
<lastmod>2026-07-27T21:39:41.891Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uconn-2523-lean-manufacturing-process-activity</loc>
<lastmod>2026-07-27T21:42:21.841Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice2-2524-energy-innovator-generator-activity</loc>
<lastmod>2026-07-27T21:40:56.365Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice2-crystalline-cloth-model-water-treatment-filters</loc>
<lastmod>2026-07-27T21:46:48.426Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice2-2545-car-design-side-impact-crash-safety-feature</loc>
<lastmod>2026-07-27T21:40:09.103Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice2-2510-handcrafted-cement-shape-engineering-activity</loc>
<lastmod>2026-07-27T21:40:52.583Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice2-resin-keyrings-keychains-fabrication</loc>
<lastmod>2026-07-27T21:44:04.502Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ind-2572-modeling-testing-slime-physical-properties</loc>
<lastmod>2026-07-27T21:40:56.799Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2521-engineering-solutions-dry-playground-design</loc>
<lastmod>2026-07-27T21:45:48.358Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla-energy-projects</loc>
<lastmod>2026-07-27T21:42:23.360Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uon-2543-tracking-movements-metadata-activity</loc>
<lastmod>2026-07-27T21:42:55.863Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice2-2535-removing-scaling-sources-citric-acid</loc>
<lastmod>2026-07-27T21:46:45.382Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice2-2527-bacteria-antibiotic-resistance-nanotechnology-activity</loc>
<lastmod>2026-07-27T21:40:47.053Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice2-2501-bacteriophage-virus-bacteria-builder-challenge</loc>
<lastmod>2021-06-08T01:16:58.992Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2509-super-slime-material-science-engineering</loc>
<lastmod>2026-07-27T21:39:36.152Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2498-engineering-solutions-sticky-situation-design</loc>
<lastmod>2026-07-27T21:40:06.852Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cmu-2539-paper-spiral-elevator-design</loc>
<lastmod>2026-07-27T21:44:12.962Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2499-clean-green-washing-machine-challenge-activity</loc>
<lastmod>2026-07-27T21:42:06.712Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice2-2502-nanotube-breast-cancer-design-challenge</loc>
<lastmod>2020-09-15T19:19:55.528Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoa-2458-plastic-properties-environment-effects</loc>
<lastmod>2026-07-27T21:46:55.828Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/unm-2490-conductive-circuit-card-company-activity</loc>
<lastmod>2026-07-27T21:48:13.249Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rut-2497-food-electrical-circuit-device-design</loc>
<lastmod>2026-07-27T21:50:47.758Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis-2476-boat-afloat-corrosion-engineering-design-activity</loc>
<lastmod>2026-07-27T21:40:49.795Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uakron-2451-aerogel-cookies-engineering-design-process</loc>
<lastmod>2026-07-27T21:50:54.136Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2505-bio-husk-bags-design-challenge</loc>
<lastmod>2020-07-27T19:07:02.377Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2308-flight-fruit-weight-gravity-imagination</loc>
<lastmod>2026-07-27T21:40:42.737Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ind-2472-trust-truss-design-wooden-bridge-activity</loc>
<lastmod>2026-07-27T21:47:17.522Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rut-2487-nanotechnology-action-organic-electronics</loc>
<lastmod>2026-07-27T21:40:39.434Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub-2538-exploring-variables-mint-mobiles-high-school</loc>
<lastmod>2026-07-27T21:50:15.713Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub-2537-exploring-variables-mint-mobiles-middle-school</loc>
<lastmod>2026-07-27T21:50:15.269Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis-2484-computer-simulation-artificial-neural-network-activity</loc>
<lastmod>2026-07-27T21:43:29.020Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis-2480-constructing-testing-3d-printed-glove-activity</loc>
<lastmod>2026-07-27T21:47:07.876Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm-2353-acting-algorithm-google-pagerank-activity</loc>
<lastmod>2026-07-27T21:41:46.006Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-2420-liquid-crystal-thermometers-design</loc>
<lastmod>2026-07-27T21:41:32.858Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2368-gene-therapy-design-activity</loc>
<lastmod>2026-07-27T21:43:15.642Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ind-2350-radiation-pressure-photons-intensity-flux</loc>
<lastmod>2026-07-27T21:50:52.536Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uconn-2400-cracking-bone-force-design-activity</loc>
<lastmod>2026-07-27T21:50:08.459Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2496-bandage-water-absorbing-crystals-design-challenge</loc>
<lastmod>2026-06-05T18:55:04.411Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2495-inundation-inspiration-design-challenge</loc>
<lastmod>2026-06-05T19:13:15.320Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2493-freewheeling-friction-design-challenge</loc>
<lastmod>2026-06-05T19:14:13.221Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2492-silkworm-strength-bridge-design-challenge</loc>
<lastmod>2026-06-05T18:57:04.174Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2491-damp-drought-plant-design-challenge</loc>
<lastmod>2026-06-08T17:39:32.180Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice3-2467-milky-way-stars-design-challenge</loc>
<lastmod>2023-07-17T18:14:18.479Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van-2465-ar-mirror-physiology-programming-challenge</loc>
<lastmod>2023-07-19T23:28:48.858Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice3-2481-pedometer-wearable-technology-design-challenge</loc>
<lastmod>2026-06-05T19:16:12.912Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-2407-bacterial-adaptations-application-genetic-engineering</loc>
<lastmod>2026-07-27T21:42:06.250Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2242-animal-survival-engineering-habitat-design</loc>
<lastmod>2026-07-27T21:49:37.351Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usm-2398-slime-graphing-speed-tensile-strength</loc>
<lastmod>2026-07-27T21:39:55.042Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2378-engineering-compost-habitat-red-wigglers-worms</loc>
<lastmod>2026-07-27T21:44:04.977Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cmu-2452-boat-design-constraints-engineering-challenge</loc>
<lastmod>2026-06-08T17:36:19.864Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cmu-2450-toxic-island-design-engineering-challenge</loc>
<lastmod>2026-06-05T18:34:46.405Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice2-2408-drinking-water-drinkable-design-challenge</loc>
<lastmod>2026-06-08T17:37:03.161Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice2-2422-ball-chemistry-engineering-design-maker-challenge</loc>
<lastmod>2021-02-17T07:08:27.672Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice4-2386-trigonometric-functions-heart-modeling-ppg-pulses</loc>
<lastmod>2026-07-27T21:50:06.678Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice2-2370-engineering-silver-nanoparticles</loc>
<lastmod>2026-07-27T21:44:11.238Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cmu2-2343-paint-dry-design</loc>
<lastmod>2026-07-27T21:43:38.540Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2389-hydrophobic-surfaces-engineering-challenge</loc>
<lastmod>2020-07-28T14:42:23.498Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uconn-2462-shin-guards-design-engineering-challenge</loc>
<lastmod>2020-07-31T11:03:16.180Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/drex-2357-water-use-conservation-data-analysis-central-tendency</loc>
<lastmod>2026-07-27T21:42:38.106Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2405-cooler-design-engineering-challenge</loc>
<lastmod>2026-06-08T17:20:24.592Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2406-bouncy-ball-factory-engineering-challenge</loc>
<lastmod>2026-06-08T17:34:28.375Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2361-sea-turtle-eggs-engineering-design-process</loc>
<lastmod>2026-07-27T21:50:05.171Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2397-prodigious-printing-possibilities-activity</loc>
<lastmod>2026-07-27T21:43:09.930Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2359-naturally-organized-insect-design</loc>
<lastmod>2026-07-27T21:51:19.329Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2367-popsicle-engineering-design-process</loc>
<lastmod>2026-07-27T21:50:45.785Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2371-engineering-gummy-candy-hydrogels</loc>
<lastmod>2026-07-27T21:49:28.854Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2354-engineering-world-oobleck-design-process</loc>
<lastmod>2026-07-27T21:50:05.667Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis-2342-3d-printng-computer-aided-design-g-code-basics</loc>
<lastmod>2026-07-27T21:43:47.580Z</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>
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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>
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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>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2270-soundproofing-material-activity</loc>
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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>
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<url>
<loc>https://www.teachengineering.org/activities/rice2-2264-silver-nanoparticles-nitrate-chemical-reaction</loc>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2271-color-change-paint-ph-engineering-design-challenge</loc>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2267-sled-hockey-design-challenge-materials-engineering</loc>
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<url>
<loc>https://www.teachengineering.org/activities/cud-2274-quicksand-stress-pressure-liquefaction-design</loc>
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<url>
<loc>https://www.teachengineering.org/activities/rice3-2349-heartbeat-microcontroller-led-senor-design-challenge</loc>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2227-distance-sensing-product-ultrasonic-arduino-microcontroller</loc>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2266-properties-matter-design-cellphone-case</loc>
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<url>
<loc>https://www.teachengineering.org/activities/nyu2-2298-sensors-visualization-data-arduino-circuit-challenge</loc>
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<url>
<loc>https://www.teachengineering.org/activities/lau-2321-simple-machines-mechanisms-rube-goldberg-challenge</loc>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2265-dyeing-design-dilution-concentration-solution</loc>
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<loc>https://www.teachengineering.org/activities/rice2-2121-nanotechnology-qr-code-scavenger-hunt</loc>
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<loc>https://www.teachengineering.org/activities/uow-2262-studying-denali-topographic-maps-ratios-gis</loc>
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<loc>https://www.teachengineering.org/activities/uow-2262-geometry-geocaching-gis-gps-technology</loc>
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<loc>https://www.teachengineering.org/activities/rice-2243-biochar-measurements-water-soil-contamination</loc>
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<loc>https://www.teachengineering.org/activities/rice-2253-human-bloodhounds-nanomaterials-body-buckeyballs</loc>
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<loc>https://www.teachengineering.org/activities/uod-1921-shantytown-construction-redesign-composite-material-science</loc>
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<loc>https://www.teachengineering.org/activities/van2-2268-visualizing-body-motion-vectors-augmented-reality-kinematics</loc>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2230-counting-atoms-law-conservation-matter</loc>
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<loc>https://www.teachengineering.org/activities/rice2-2254-nanoparticles-photocatalytic-speed-filtration-system</loc>
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<loc>https://www.teachengineering.org/activities/nds-2224-bio-engineering-proteins-dna-modeling-testing</loc>
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<loc>https://www.teachengineering.org/activities/uof-2245-zooming-scale-systems-thinking-nature-outdoor-learning</loc>
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<loc>https://www.teachengineering.org/activities/uok-2216-microplastic-extraction-cleanser-beads-filter-design</loc>
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<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>
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<url>
<loc>https://www.teachengineering.org/activities/spfun-2176-glowing-pokemon-go-patches-el-panels-circuit</loc>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2231-designing-sunglasses-light-polarization-sensor</loc>
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<url>
<loc>https://www.teachengineering.org/activities/spfun-2141-led-cloud-connected-arduino-coding-light-fixture</loc>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2219-xbee-lights-motors-arduino-wireless-communication</loc>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2217-servo-bluetooth-phone-arduino-wireless</loc>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2216-servo-arm-arduino-serial-communication-protocol</loc>
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<url>
<loc>https://www.teachengineering.org/activities/cub-1901-natural-disasters-gis-gps-data-analysis</loc>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2229-perfect-vehicle-criteria-solar-speed-volume</loc>
<lastmod>2026-07-27T21:40:31.410Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/spfun-2146-sound-reactive-clothing-arduino-e-textile</loc>
<lastmod>2026-07-27T21:50:11.326Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/spfun-1856-binary-trumpet-digital-music-breadboard-circuitry</loc>
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<url>
<loc>https://www.teachengineering.org/activities/unm-2006-et-phone-home-photovoltaics-solar-energy</loc>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2257-clean-it-up-oil-spill-product-challenge</loc>
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<url>
<loc>https://www.teachengineering.org/activities/ncs-2016-weather-measure-humidity-build-psychrometer</loc>
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<url>
<loc>https://www.teachengineering.org/activities/spfun-1851-shoebox-arcade-game-controller-makey-circuit</loc>
<lastmod>2026-07-27T21:49:09.860Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-1971-monitoring-noise-levels-smart-device-physics</loc>
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<url>
<loc>https://www.teachengineering.org/activities/mis-1616-electronic-circuit-applications-systems-of-equations</loc>
<lastmod>2026-07-27T21:47:05.213Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2206-sticky-note-fan-arduino-motor-control</loc>
<lastmod>2026-06-05T19:14:55.399Z</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>2026-05-29T17:14:06.574Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2131-building-light-sculptures-arduino-output-leds</loc>
<lastmod>2026-06-08T17:19:52.820Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2126-introduction-arduino-connected-blinking-leds</loc>
<lastmod>2026-06-05T18:55:43.418Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/usm-2091-lab-research-design-phosphorescent-materials</loc>
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<url>
<loc>https://www.teachengineering.org/activities/ind-1996-frictional-roller-coaster-design-project-calculus</loc>
<lastmod>2026-07-27T21:51:18.092Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-1926-linear-regression-design-challenge</loc>
<lastmod>2026-07-27T21:44:48.168Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uconn-2111-build-solar-usb-charger-circuit-design</loc>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2101-out-of-box-cardboard-furniture-design-challenge</loc>
<lastmod>2023-05-17T00:26:37.746Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/nds-1731-semipermeable-membrane-prototypes-kidney-dialysis</loc>
<lastmod>2026-07-27T21:45:39.158Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/nds-1741-statistical-analysis-temperature-sensors-accuracy</loc>
<lastmod>2026-07-27T21:48:15.925Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/nds-1726-bone-transplants-biomedical-mimic-3d</loc>
<lastmod>2026-07-27T21:48:15.459Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uva-1951-help-bill-bioprinting-skin-muscle-bone</loc>
<lastmod>2026-07-27T21:41:52.938Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/nds-1746-creative-crash-test-cars-mass-momentum</loc>
<lastmod>2026-06-08T17:21:54.592Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/nds-1736-rocky-beach-weathering-model-rock-cycle</loc>
<lastmod>2026-07-27T21:42:44.962Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ucd-1371-cupcakes-product-life-cycle-assessment-impact</loc>
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<url>
<loc>https://www.teachengineering.org/activities/uod-1906-cool-puppy-doghouse-design-heat</loc>
<lastmod>2026-05-29T20:12:09.465Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ucd-1811-algae-edible-model-cell-biofuel</loc>
<lastmod>2026-07-27T21:46:35.488Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/spfun-1881-light-up-plush-pals-circuits-e-textiles</loc>
<lastmod>2026-07-27T21:50:10.868Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/und-1721-big-data-collection-manipulation-analysis</loc>
<lastmod>2026-07-27T21:44:55.324Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/spfun-1876-night-light-pennant-lilymini-protosnap</loc>
<lastmod>2026-07-27T21:47:26.585Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ncs-2026-chernobyl-empathy-nuclear-energy</loc>
<lastmod>2026-07-27T21:46:22.124Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ncs-2021-wind-patterns-desert-hydropower</loc>
<lastmod>2026-07-27T21:40:22.762Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ncs-2011-solar-farm-cost-benefit-analysis</loc>
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<url>
<loc>https://www.teachengineering.org/activities/ncs-2031-cookie-mining-cost-benefit-analysis-analysis-profit</loc>
<lastmod>2026-07-27T21:41:08.661Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/spfun_paper_circuits_activity1</loc>
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<url>
<loc>https://www.teachengineering.org/activities/spfun_dance_maker1</loc>
<lastmod>2025-08-08T17:27:40.754Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/fiu_models_activity1</loc>
<lastmod>2026-07-27T21:40:10.599Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh_elliptical_table_activity1</loc>
<lastmod>2026-07-27T21:47:35.781Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/spfun_tinymonster_activity1</loc>
<lastmod>2026-07-27T21:49:55.839Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/gat_lighting_activity1</loc>
<lastmod>2026-07-27T21:39:46.270Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub_geotools_lesson01_activity1</loc>
<lastmod>2026-07-27T21:40:42.158Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/spfun_artpins_activity1</loc>
<lastmod>2026-07-27T21:51:14.914Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/spfun_masks_activity1</loc>
<lastmod>2026-07-27T21:50:08.912Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/spfun_keyboard_activity1</loc>
<lastmod>2026-07-27T21:43:54.117Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub_tslauncher_maker1</loc>
<lastmod>2026-06-05T18:56:01.755Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub_carrierdevices_maker1</loc>
<lastmod>2026-06-05T19:14:27.425Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub_sneaker_maker1</loc>
<lastmod>2026-06-05T18:35:29.549Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/spfun_rgbcolor_maker1</loc>
<lastmod>2026-06-05T19:14:41.013Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ucd_bottlerockets_activity1</loc>
<lastmod>2026-07-27T21:47:38.426Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis_scaling_lesson01_activity1</loc>
<lastmod>2026-07-27T21:46:03.467Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub_polygons_angles_trusses_lesson01_activity2</loc>
<lastmod>2026-07-27T21:46:13.686Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub_polygons_angles_trusses_lesson01_activity1</loc>
<lastmod>2026-07-27T21:44:33.448Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub_aqueducts_lesson01_activity1</loc>
<lastmod>2026-07-27T21:47:19.562Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub_scale_model_lesson01_activity2</loc>
<lastmod>2026-07-27T21:44:53.437Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub_scale_model_lesson01_activity1</loc>
<lastmod>2026-07-27T21:45:57.782Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub_linear_programming_lesson01_activity1</loc>
<lastmod>2026-07-27T21:42:35.091Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis_potholes_lesson01_activity1</loc>
<lastmod>2026-07-27T21:39:46.715Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub_spatviz_lesson01_activity4</loc>
<lastmod>2026-07-27T21:50:06.119Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub_spatviz_lesson01_activity3</loc>
<lastmod>2026-07-27T21:40:57.229Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub_spatviz_lesson01_activity2</loc>
<lastmod>2026-07-27T21:45:56.671Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub_spatviz_lesson01_activity1</loc>
<lastmod>2026-07-27T21:44:36.196Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/wpi_assistive_device_activity1</loc>
<lastmod>2026-07-27T21:46:01.712Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/spfun_lightsculpt_activity2</loc>
<lastmod>2026-07-27T21:40:19.950Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/spfun_lightsculpt_activity1</loc>
<lastmod>2026-07-27T21:40:16.990Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ind_complex_solids_activity1</loc>
<lastmod>2026-07-27T21:50:53.667Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/nyu_capillary_action_activity1</loc>
<lastmod>2026-07-27T21:42:41.564Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/nyu_homeostasis_activity1</loc>
<lastmod>2026-07-27T21:43:35.358Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ucd_windturbine_activity1</loc>
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</url>
<url>
<loc>https://www.teachengineering.org/activities/rice_magnetic_activity1</loc>
<lastmod>2026-07-27T21:43:31.756Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_mutations_lesson01_activity1</loc>
<lastmod>2026-07-27T21:39:48.636Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice_surfactants_activity1</loc>
<lastmod>2026-07-27T21:42:28.179Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usu_safety_activity1</loc>
<lastmod>2026-07-27T21:50:55.241Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_space8_lesson01_activity2</loc>
<lastmod>2026-07-27T21:51:23.056Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_soil_solarization_lesson01_activity1</loc>
<lastmod>2026-07-27T21:40:26.085Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/gat_robots_lesson01_activity2</loc>
<lastmod>2026-07-27T21:50:54.563Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/gat_robots_lesson01_activity1</loc>
<lastmod>2026-07-27T21:47:22.840Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/gat_esr_test_activity1</loc>
<lastmod>2026-07-27T21:51:28.664Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airquality_lesson01_activity5</loc>
<lastmod>2026-07-27T21:43:41.785Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airquality_lesson01_activity4</loc>
<lastmod>2026-07-27T21:43:41.042Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airquality_lesson01_activity3</loc>
<lastmod>2026-07-27T21:51:30.339Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airquality_lesson01_activity2</loc>
<lastmod>2026-07-27T21:44:11.697Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airquality_lesson01_activity1</loc>
<lastmod>2026-07-27T21:43:42.584Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usm_surfactant_activity1</loc>
<lastmod>2026-07-27T21:41:06.132Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_carbonfiber_lesson01_activity1</loc>
<lastmod>2026-07-27T21:47:15.022Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson05_activity4</loc>
<lastmod>2026-07-27T21:51:28.019Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice_erruption_activity1</loc>
<lastmod>2026-07-27T21:47:44.033Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/gat_mirrors_activity1</loc>
<lastmod>2026-07-27T21:51:06.350Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_windpower_spanish_sprinkle</loc>
<lastmod>2026-07-27T21:12:29.184Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_strawbridges_spanish_sprinkle</loc>
<lastmod>2026-07-27T21:12:44.675Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_superspinners_spanish_sprinkle</loc>
<lastmod>2026-07-27T21:12:28.783Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice_biochar_activity1</loc>
<lastmod>2026-07-27T21:43:01.556Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_alloy_lesson01_activity1</loc>
<lastmod>2026-07-27T21:47:28.228Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_windpower_sprinkle</loc>
<lastmod>2026-07-27T21:12:38.058Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_superspinners_sprinkle</loc>
<lastmod>2026-07-27T21:12:38.425Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_strawbridges_sprinkle</loc>
<lastmod>2026-07-27T21:12:50.838Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usm_membranes_activity1</loc>
<lastmod>2026-07-27T21:39:48.204Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spaghettibridge_spanish_sprinkle</loc>
<lastmod>2019-04-05T18:20:38.322Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_towerinvestigation_spanish_sprinkle</loc>
<lastmod>2017-07-21T20:32:17.847Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_makealarm_spanish_sprinkle</loc>
<lastmod>2026-07-27T21:12:33.115Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_engrdrawings_spanish_sprinkle</loc>
<lastmod>2026-07-27T21:12:33.902Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spoolracers_spanish_sprinkle</loc>
<lastmod>2026-07-27T21:12:42.658Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_hotchocolate_activity1</loc>
<lastmod>2026-07-27T21:46:07.938Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_sensor_lesson01_activity1</loc>
<lastmod>2026-07-27T21:50:10.329Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ewh_pump_activity1</loc>
<lastmod>2026-07-27T21:49:54.349Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spoolracers_sprinkle</loc>
<lastmod>2026-07-27T21:12:51.585Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_towerinvestigation_sprinkle</loc>
<lastmod>2025-06-12T15:37:08.719Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_wheeling</loc>
<lastmod>2026-07-27T21:12:51.210Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_motor</loc>
<lastmod>2026-07-27T21:12:50.464Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spaghettibridge_sprinkle</loc>
<lastmod>2022-05-12T20:33:26.751Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_chromatography</loc>
<lastmod>2026-07-27T21:12:50.063Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_anemometer_sprinkle1</loc>
<lastmod>2026-07-27T21:12:49.696Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_sugarspill</loc>
<lastmod>2026-07-27T21:12:49.294Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_yogurtspeakers</loc>
<lastmod>2026-07-27T21:12:48.926Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_justbreathe</loc>
<lastmod>2026-07-27T21:12:48.520Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_catapult</loc>
<lastmod>2026-07-27T21:12:48.151Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_squeeze</loc>
<lastmod>2026-07-27T21:12:47.756Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_prosthetic</loc>
<lastmod>2026-07-27T21:12:47.383Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_lightyourway</loc>
<lastmod>2026-07-27T21:12:47.013Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_hovercraft</loc>
<lastmod>2026-07-27T21:12:46.629Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electromagnet_sprinkle1</loc>
<lastmod>2026-07-27T21:12:46.259Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/sugarspill_spanish</loc>
<lastmod>2026-07-27T21:12:45.862Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/lightyourway_spanish</loc>
<lastmod>2026-07-27T21:12:45.496Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/justbreathe_spanish</loc>
<lastmod>2026-07-27T21:12:45.066Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/electromagnet_spanish</loc>
<lastmod>2026-07-27T21:12:44.278Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/motor_spanish</loc>
<lastmod>2026-07-27T21:12:43.879Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/anemometer_spanish</loc>
<lastmod>2026-07-27T21:12:43.477Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/chromatography_spanish</loc>
<lastmod>2026-07-27T21:12:43.047Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/yogurtspeakers_spanish</loc>
<lastmod>2026-07-27T21:12:42.294Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/prosthetic_spanish</loc>
<lastmod>2026-07-27T21:12:41.862Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/catapult_spanish</loc>
<lastmod>2026-07-27T21:12:41.466Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/squeeze_spanish</loc>
<lastmod>2026-07-27T21:12:41.041Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rocket_sprinkle1</loc>
<lastmod>2026-07-27T21:12:40.673Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_clayboats</loc>
<lastmod>2026-07-27T21:12:40.309Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_creepysillyputty</loc>
<lastmod>2026-07-27T21:12:39.908Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_fancyfeet</loc>
<lastmod>2026-07-27T21:12:39.535Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_hangingaround</loc>
<lastmod>2026-07-27T21:12:39.166Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_conduct</loc>
<lastmod>2026-07-27T21:12:38.793Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_engrdrawings_sprinkle</loc>
<lastmod>2026-07-27T21:12:37.688Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_makealarm_sprinkle</loc>
<lastmod>2026-07-27T21:12:37.315Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_ptarmigan</loc>
<lastmod>2026-07-27T21:12:36.945Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_waterwheel</loc>
<lastmod>2026-07-27T21:12:36.578Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_pressure</loc>
<lastmod>2026-07-27T21:12:36.209Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_aquathrust</loc>
<lastmod>2026-07-27T21:12:35.841Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_catchwater</loc>
<lastmod>2026-07-27T21:12:35.466Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/hangingaround_spanish</loc>
<lastmod>2026-07-27T21:12:35.102Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/fancyfeet_spanish</loc>
<lastmod>2026-07-27T21:12:34.703Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/creepysillyputty_spanish</loc>
<lastmod>2026-07-27T21:12:34.266Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ptarmigan_spanish</loc>
<lastmod>2026-07-27T21:12:33.510Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/willitconduct_spanish</loc>
<lastmod>2026-07-27T21:12:32.719Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wheeling_spanish</loc>
<lastmod>2026-07-27T21:12:32.320Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rocket_spanish</loc>
<lastmod>2026-07-27T21:12:31.925Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/waterwheel_spanish</loc>
<lastmod>2026-07-27T21:12:31.532Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/pressure_spanish</loc>
<lastmod>2026-07-27T21:12:31.125Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/hovercraft_spanish</loc>
<lastmod>2026-07-27T21:12:30.730Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/clayboats_spanish</loc>
<lastmod>2026-07-27T21:12:30.336Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/catchthewater_spanish</loc>
<lastmod>2026-07-27T21:12:29.972Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/aquathrust_spanish</loc>
<lastmod>2026-07-27T21:12:29.579Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson02_activity1</loc>
<lastmod>2026-07-27T21:51:34.401Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson02_activity2</loc>
<lastmod>2026-07-27T21:51:33.818Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson03_activity2</loc>
<lastmod>2026-07-27T21:51:33.251Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_brightidea_activity1</loc>
<lastmod>2026-07-27T21:51:31.408Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spect_activity7</loc>
<lastmod>2026-07-27T21:51:29.537Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst_feelstress_activity1</loc>
<lastmod>2026-07-27T21:51:29.106Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_circuits_and_ohm_activity1</loc>
<lastmod>2026-07-27T21:51:27.543Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_design_lesson01_activity1</loc>
<lastmod>2026-07-27T21:51:25.177Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_bug_lesson01_activity1</loc>
<lastmod>2026-07-27T21:51:24.637Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cmu_rube_activity1</loc>
<lastmod>2026-07-27T21:51:23.654Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_space8_lesson01_activity1</loc>
<lastmod>2026-07-27T21:51:22.497Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_crutches_activity</loc>
<lastmod>2026-07-27T21:51:22.044Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_rollercoaster_music_act</loc>
<lastmod>2026-07-27T21:51:19.791Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson04_activity1</loc>
<lastmod>2026-07-27T21:51:18.694Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_service_activity03</loc>
<lastmod>2026-07-27T21:51:17.484Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_service_activity01</loc>
<lastmod>2026-07-27T21:51:16.950Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson05_activity1</loc>
<lastmod>2026-07-27T21:51:15.353Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson05_activity1</loc>
<lastmod>2026-07-27T21:51:13.120Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_protect_activity1</loc>
<lastmod>2026-07-27T21:51:08.289Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/invent_a_backscratcher</loc>
<lastmod>2026-07-27T21:51:07.211Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_seismicw_lesson01_activity1</loc>
<lastmod>2026-07-27T21:50:55.700Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson08_activity3</loc>
<lastmod>2026-07-27T21:50:52.986Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rooftop_lesson01_activity1</loc>
<lastmod>2026-07-27T21:50:49.599Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson02_activity3</loc>
<lastmod>2026-07-27T21:50:46.225Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson05_activity1</loc>
<lastmod>2026-07-27T21:50:44.176Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_air_pollution_activity</loc>
<lastmod>2026-07-27T21:50:43.761Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_sun_lesson01_activity1</loc>
<lastmod>2026-07-27T21:50:37.367Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson04_activity1</loc>
<lastmod>2026-07-27T21:50:36.830Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simple_lesson04_activity1</loc>
<lastmod>2026-07-27T21:50:35.793Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson07_activity1</loc>
<lastmod>2026-07-27T21:50:34.652Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_sunflower_mary_act</loc>
<lastmod>2026-07-27T21:50:29.585Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_desal_lesson01_activity1</loc>
<lastmod>2026-07-27T21:50:29.027Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_biomimicry_activity5</loc>
<lastmod>2026-07-27T21:50:25.001Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_solar_lesson01_activity2</loc>
<lastmod>2026-07-27T21:50:16.170Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_brid_lesson01_activity1</loc>
<lastmod>2026-07-27T21:50:14.704Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson03_activity1</loc>
<lastmod>2026-07-27T21:50:13.678Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_gaitway_lesson01_activity1</loc>
<lastmod>2026-07-27T21:50:13.132Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_walk_lesson01_activity1</loc>
<lastmod>2026-07-27T21:50:12.604Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_magnetic_launcher_activity1</loc>
<lastmod>2026-07-27T21:50:12.175Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_ehd_thrusters_activity1</loc>
<lastmod>2026-07-27T21:50:11.753Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/utpa_perfectwaves_activity1</loc>
<lastmod>2026-07-27T21:50:07.551Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_dams_lesson05_activity1</loc>
<lastmod>2026-07-27T21:50:02.254Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_surg_lesson02_activity1</loc>
<lastmod>2026-07-27T21:50:00.721Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_dams_lesson07_activity1</loc>
<lastmod>2026-07-27T21:50:00.182Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson02_activity3</loc>
<lastmod>2026-07-27T21:49:57.280Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_balloons_lesson01_activity1</loc>
<lastmod>2026-07-27T21:49:56.767Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson04_activity3</loc>
<lastmod>2026-07-27T21:49:54.810Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/gat_visual_art_lesson01_activity1</loc>
<lastmod>2026-07-27T21:49:53.822Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_piezo_lesson01_activity1</loc>
<lastmod>2026-07-27T21:49:53.278Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_soundandlight_lesson8_activity1</loc>
<lastmod>2026-07-27T21:49:47.912Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_asteroid_lesson5_activity1_tg</loc>
<lastmod>2026-07-27T21:49:47.226Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity2_energy_conversion</loc>
<lastmod>2026-07-27T21:49:46.127Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst_environmental_lesson02_activity2</loc>
<lastmod>2026-07-27T21:49:25.097Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucla_metal_activity1</loc>
<lastmod>2026-07-27T21:49:24.277Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_surg_lesson03_activity1</loc>
<lastmod>2026-07-27T21:49:22.640Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_measurement_lesson01_activity1</loc>
<lastmod>2026-07-27T21:49:18.064Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson02_activity2</loc>
<lastmod>2026-07-27T21:49:14.853Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_microbes_lesson01_activity2</loc>
<lastmod>2026-07-27T21:49:14.350Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spect_activity1</loc>
<lastmod>2026-07-27T21:49:07.027Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson07_activity2</loc>
<lastmod>2026-07-27T21:49:00.713Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson09_activity2</loc>
<lastmod>2026-07-27T21:48:58.847Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_housing_lesson02_activity1</loc>
<lastmod>2026-07-27T21:48:36.529Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst_environmental_lesson03_activity2</loc>
<lastmod>2026-07-27T21:48:23.750Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_cells_lesson02_activity1</loc>
<lastmod>2026-07-27T21:48:23.201Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_surfactants_act4</loc>
<lastmod>2026-07-27T21:48:22.777Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson09_activity1</loc>
<lastmod>2026-07-27T21:48:20.858Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/jhu_cnetworks_lesson01_activity1</loc>
<lastmod>2026-07-27T21:48:20.299Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_dams_lesson03_activity1</loc>
<lastmod>2026-07-27T21:48:19.761Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_virus_mary_act</loc>
<lastmod>2026-07-27T21:48:19.228Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_lifescience_lesson01_activity1</loc>
<lastmod>2026-07-27T21:48:18.691Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/utpa_breezy_activity1</loc>
<lastmod>2026-07-27T21:48:18.259Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson10_activity5</loc>
<lastmod>2026-07-27T21:48:16.347Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson04_activity1</loc>
<lastmod>2026-07-27T21:48:14.835Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_liftoff_lesson01_activity1</loc>
<lastmod>2026-07-27T21:48:14.281Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson01_activity2</loc>
<lastmod>2026-07-27T21:48:13.709Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_heat_activity</loc>
<lastmod>2026-07-27T21:48:12.761Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_crystals_lesson01_activity1</loc>
<lastmod>2026-07-27T21:48:12.201Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson05_activity1</loc>
<lastmod>2026-07-27T21:48:11.614Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_newton_lesson03_activity1</loc>
<lastmod>2026-07-27T21:48:11.022Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson03_activity1</loc>
<lastmod>2026-07-27T21:48:10.457Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_housing_lesson01_activity1</loc>
<lastmod>2026-07-27T21:48:09.883Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson04_activity1</loc>
<lastmod>2026-07-27T21:48:08.798Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_space8_lesson02_activity1</loc>
<lastmod>2026-07-27T21:48:08.256Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_mri_act_less_1</loc>
<lastmod>2026-07-27T21:48:07.727Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst_environmental_lesson03_activity1</loc>
<lastmod>2026-07-27T21:48:07.146Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_accelerometer_lesson02_activity1</loc>
<lastmod>2026-07-27T21:48:06.599Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_pveff_lesson02_activity1</loc>
<lastmod>2026-07-27T21:48:06.052Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/design_a_parachute</loc>
<lastmod>2026-07-27T21:48:05.596Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst_environmental_lesson02_activity3</loc>
<lastmod>2026-07-27T21:48:05.049Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_pveff_lesson01_activity1</loc>
<lastmod>2026-07-27T21:48:03.431Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ball_bounce_experiment</loc>
<lastmod>2026-07-27T21:48:02.956Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simp_machines_lesson03_activity1</loc>
<lastmod>2026-07-27T21:48:02.415Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson08_activity2</loc>
<lastmod>2026-07-27T21:48:01.818Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucla_superball_activity1</loc>
<lastmod>2026-07-27T21:47:59.620Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity3_energy_choices_game</loc>
<lastmod>2026-07-27T21:47:58.607Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_angularvelocity_activity1</loc>
<lastmod>2026-07-27T21:47:57.339Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mix_lesson2_activity1</loc>
<lastmod>2026-07-27T21:47:56.780Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity1_energy_intelligence</loc>
<lastmod>2026-07-27T21:47:55.650Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson04_activity2</loc>
<lastmod>2026-07-27T21:47:54.629Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson03_activity1</loc>
<lastmod>2026-07-27T21:47:53.871Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simp_machines_lesson02_activity1</loc>
<lastmod>2026-07-27T21:47:53.317Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_friction_smary_act</loc>
<lastmod>2026-07-27T21:47:52.752Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_egg_drop_activity1</loc>
<lastmod>2026-07-27T21:47:51.293Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity1_forms_states</loc>
<lastmod>2026-07-27T21:47:50.732Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity3_household_light_bulbs</loc>
<lastmod>2026-07-27T21:47:50.137Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_human_power_activity</loc>
<lastmod>2026-07-27T21:47:49.576Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_problem_solving_activity2</loc>
<lastmod>2026-07-27T21:47:48.993Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity2_energy_sources_research</loc>
<lastmod>2026-07-27T21:47:48.433Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity1_renewable</loc>
<lastmod>2026-07-27T21:47:47.869Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity1_efficiency_electromech</loc>
<lastmod>2026-07-27T21:47:47.306Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity3_energy_systems</loc>
<lastmod>2026-07-27T21:47:46.750Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity2_energy_carousel</loc>
<lastmod>2026-07-27T21:47:46.195Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity4_energy_perspectives</loc>
<lastmod>2026-07-27T21:47:45.657Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity2_efficiency_heating</loc>
<lastmod>2026-07-27T21:47:45.054Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity1_household_watt_meter</loc>
<lastmod>2026-07-27T21:47:44.478Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson06_activity3</loc>
<lastmod>2026-07-27T21:47:42.929Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_hospital_activity1</loc>
<lastmod>2026-07-27T21:47:42.525Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_sound_lesson02_activity1</loc>
<lastmod>2026-07-27T21:47:40.511Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson07_activity1</loc>
<lastmod>2026-07-27T21:47:39.948Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_soundandlight_lesson1_activity1</loc>
<lastmod>2026-07-27T21:47:39.411Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson01_activity1</loc>
<lastmod>2026-07-27T21:47:38.866Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson09_activity3</loc>
<lastmod>2026-07-27T21:47:37.801Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csu_polymer_lesson01_activity1</loc>
<lastmod>2026-07-27T21:47:37.259Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_empathy_activity4</loc>
<lastmod>2026-07-27T21:47:36.716Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_boom_activity1</loc>
<lastmod>2026-07-27T21:47:36.227Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucsb_robotics_activity1</loc>
<lastmod>2026-07-27T21:47:35.352Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_polymer_lesson01_activity1</loc>
<lastmod>2026-07-27T21:47:34.771Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_gravityfed_activity1</loc>
<lastmod>2026-07-27T21:47:34.308Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/insect_trap_activity</loc>
<lastmod>2026-07-27T21:47:33.870Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_sanfran_activity1</loc>
<lastmod>2026-07-27T21:47:33.453Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/earthquake_city</loc>
<lastmod>2026-07-27T21:47:33.014Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_density_mary_act</loc>
<lastmod>2026-07-27T21:47:32.481Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_yeast_mary_act</loc>
<lastmod>2026-07-27T21:47:31.800Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_hockey_music_act</loc>
<lastmod>2026-07-27T21:47:31.296Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_bycatchunit_musc_act2</loc>
<lastmod>2026-07-27T21:47:30.753Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/tetrahedral_kites</loc>
<lastmod>2026-07-27T21:47:30.314Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson05_activity2</loc>
<lastmod>2026-07-27T21:47:29.770Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_bycatchunit_musc_act</loc>
<lastmod>2026-07-27T21:47:29.214Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ewh_suitup_activity1</loc>
<lastmod>2026-07-27T21:47:28.756Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson01_activity1</loc>
<lastmod>2026-07-27T21:47:27.641Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_fluidmechanics_lesson02_activity1</loc>
<lastmod>2026-07-27T21:47:27.038Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/bicycle_helmet_activity</loc>
<lastmod>2026-07-27T21:47:26.144Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mars_lesson05_activity1</loc>
<lastmod>2026-07-27T21:47:25.524Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson05_activity1</loc>
<lastmod>2026-07-27T21:47:25.101Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_solarcity_activity1</loc>
<lastmod>2026-07-27T21:47:23.952Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simple_lesson01_activity1</loc>
<lastmod>2026-07-27T21:47:23.365Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/the_best_insulator</loc>
<lastmod>2026-07-27T21:47:22.382Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_intro_lesson01_activity1</loc>
<lastmod>2026-07-27T21:47:21.838Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_big_chill_activity1</loc>
<lastmod>2026-07-27T21:47:21.419Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_encoders_activity1</loc>
<lastmod>2026-07-27T21:47:20.989Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_power_activity1</loc>
<lastmod>2026-07-27T21:47:18.618Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_empathy_activity1</loc>
<lastmod>2026-07-27T21:47:18.090Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/gat_mixture_activity1</loc>
<lastmod>2026-07-27T21:47:17.050Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_obi_activity1</loc>
<lastmod>2026-07-27T21:47:16.577Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_zero_energy</loc>
<lastmod>2026-07-27T21:47:15.976Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_housing_lesson03_activity1</loc>
<lastmod>2026-07-27T21:47:14.413Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson05_activity3</loc>
<lastmod>2026-07-27T21:47:13.353Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson09_activity4</loc>
<lastmod>2026-07-27T21:47:12.744Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_probe_activity1</loc>
<lastmod>2026-07-27T21:47:12.306Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson07_activity3</loc>
<lastmod>2026-07-27T21:47:11.660Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_molecules_activity1</loc>
<lastmod>2026-07-27T21:47:11.231Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_photo_mary_act</loc>
<lastmod>2026-07-27T21:47:10.692Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simp_machines_lesson04_activity1</loc>
<lastmod>2026-07-27T21:47:10.145Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_beam_activity1</loc>
<lastmod>2026-07-27T21:47:09.267Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_graphing_activity1</loc>
<lastmod>2026-07-27T21:47:08.842Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/safety_sue</loc>
<lastmod>2026-07-27T21:47:08.397Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_trusses_lesson01_activity1</loc>
<lastmod>2026-07-27T21:47:06.345Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson06_activity1</loc>
<lastmod>2026-07-27T21:47:05.755Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_soundandlight_lesson5_activity1</loc>
<lastmod>2026-07-27T21:46:59.588Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/focus_on_fabrics</loc>
<lastmod>2026-07-27T21:46:58.271Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_computerprogram_lesson01_activity1</loc>
<lastmod>2026-07-27T21:46:57.740Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mag_lesson1_activity1</loc>
<lastmod>2026-07-27T21:46:57.212Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_organic_activity1</loc>
<lastmod>2026-07-27T21:46:56.259Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_dams_lesson08_activity1</loc>
<lastmod>2026-07-27T21:46:55.279Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_windturbine_activity1</loc>
<lastmod>2026-07-27T21:46:54.843Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_erosion_activity1</loc>
<lastmod>2026-07-27T21:46:47.966Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_asteroid_lesson1_activity1_tg</loc>
<lastmod>2026-07-27T21:46:47.346Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson02_activity2</loc>
<lastmod>2026-07-27T21:46:46.782Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/make_an_alarm</loc>
<lastmod>2026-07-27T21:46:46.369Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson09_activity1</loc>
<lastmod>2026-07-27T21:46:45.794Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_genetics_mary_act</loc>
<lastmod>2026-07-27T21:46:44.857Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson05_activity1</loc>
<lastmod>2026-07-27T21:46:44.252Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson06_activity2</loc>
<lastmod>2026-07-27T21:46:43.691Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/make_recycled_paper</loc>
<lastmod>2026-07-27T21:46:43.280Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/utpa_sensors_activity1</loc>
<lastmod>2026-07-27T21:46:42.859Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_stormwater_lesson02_activity4</loc>
<lastmod>2026-07-27T21:46:42.110Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_stormwater_lesson01_activity1</loc>
<lastmod>2026-07-27T21:46:41.539Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_flocculant_activity01</loc>
<lastmod>2026-07-27T21:46:40.990Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usc_forcesgraphing</loc>
<lastmod>2026-07-27T21:46:40.567Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_sensorswork_lesson06_activity1</loc>
<lastmod>2026-07-27T21:46:39.960Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_sensorswork_lesson05_activity1</loc>
<lastmod>2026-07-27T21:46:39.380Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_sensorswork_lesson04_activity1</loc>
<lastmod>2026-07-27T21:46:38.802Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_sensorswork_lesson03_activity1</loc>
<lastmod>2026-07-27T21:46:38.219Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_ourbodies_lesson03_activity5</loc>
<lastmod>2026-07-27T21:46:37.683Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_ourbodies_lesson02_activity3</loc>
<lastmod>2026-07-27T21:46:37.112Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_ourbodies_lesson02_activity2</loc>
<lastmod>2026-07-27T21:46:36.546Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_ourbodies_lesson01_activity1</loc>
<lastmod>2026-07-27T21:46:36.008Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_dig_mapping_activity1</loc>
<lastmod>2026-07-27T21:46:34.876Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_genetic_lesson01_activity1</loc>
<lastmod>2026-07-27T21:46:34.355Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_decomposers_mary_act</loc>
<lastmod>2026-07-27T21:46:33.854Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_sound_lesson01_activity1</loc>
<lastmod>2026-07-27T21:46:33.309Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_hybrid_design_activity2</loc>
<lastmod>2026-07-27T21:46:32.586Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_cleanupmess_act4</loc>
<lastmod>2026-07-27T21:46:32.033Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mining_activity1</loc>
<lastmod>2026-07-27T21:46:31.174Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson01_activity2</loc>
<lastmod>2026-07-27T21:46:30.605Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/njit_paper_activity1</loc>
<lastmod>2026-07-27T21:46:30.190Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spect_activity2</loc>
<lastmod>2026-07-27T21:46:29.176Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_biorecycling_lesson01_activity1</loc>
<lastmod>2026-07-27T21:46:28.634Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson06_activity2</loc>
<lastmod>2026-07-27T21:46:28.052Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usc_speakers_activity1</loc>
<lastmod>2026-07-27T21:46:27.193Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mars_lesson04_activity1</loc>
<lastmod>2026-07-27T21:46:26.605Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson02_activity3</loc>
<lastmod>2026-07-27T21:46:26.058Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson08_activity2</loc>
<lastmod>2026-07-27T21:46:25.493Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_surg_lesson01_activity2</loc>
<lastmod>2026-07-27T21:46:24.856Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_creative_activity1</loc>
<lastmod>2026-07-27T21:46:24.285Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_sailcars_activity1</loc>
<lastmod>2026-07-27T21:46:23.652Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/design_a_recycling_game</loc>
<lastmod>2026-07-27T21:46:23.230Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson05_activity2</loc>
<lastmod>2026-07-27T21:46:22.632Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_challenges_lesson02_activity4</loc>
<lastmod>2026-07-27T21:46:21.580Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_code_sue</loc>
<lastmod>2026-07-27T21:46:21.157Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_solarcar_tech_act</loc>
<lastmod>2026-07-27T21:46:20.404Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity2_household_audit</loc>
<lastmod>2026-07-27T21:46:19.831Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson2_activity1</loc>
<lastmod>2026-07-27T21:46:19.267Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson06_activity1</loc>
<lastmod>2026-07-27T21:46:18.717Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson04_activity3</loc>
<lastmod>2026-07-27T21:46:18.105Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson01_activity2</loc>
<lastmod>2026-07-27T21:46:17.094Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson04_activity1</loc>
<lastmod>2026-07-27T21:46:16.552Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson5_activity1</loc>
<lastmod>2026-07-27T21:46:16.001Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson01_activity2</loc>
<lastmod>2026-07-27T21:46:15.430Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson08_activity4</loc>
<lastmod>2026-07-27T21:46:14.890Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson02_activity1</loc>
<lastmod>2026-07-27T21:46:14.350Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_weather_lesson02_activity1</loc>
<lastmod>2026-07-27T21:46:13.146Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usu_ethics_activity1</loc>
<lastmod>2026-07-27T21:46:12.691Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_filtering_lesson01_activity1</loc>
<lastmod>2026-07-27T21:46:12.164Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/which_roof_is_tops</loc>
<lastmod>2026-07-27T21:46:11.724Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson06_activity1</loc>
<lastmod>2026-07-27T21:46:11.192Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mars_lesson03_activity1</loc>
<lastmod>2026-07-27T21:46:10.549Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_design_lesson01_activity2</loc>
<lastmod>2026-07-27T21:46:09.963Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson08_activity1</loc>
<lastmod>2026-07-27T21:46:09.394Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_heat_lesson01_activity1</loc>
<lastmod>2026-07-27T21:46:08.836Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_accelerometer_lesson01_activity1</loc>
<lastmod>2026-07-27T21:46:08.379Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_bio_lesson03_activity1</loc>
<lastmod>2026-07-27T21:46:07.373Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_trebuchet_activity1</loc>
<lastmod>2026-07-27T21:46:06.946Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson02_activity2</loc>
<lastmod>2026-07-27T21:46:06.374Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_bones_lesson01_activity2</loc>
<lastmod>2026-07-27T21:46:05.711Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_bones_lesson01_activity1</loc>
<lastmod>2026-07-27T21:46:05.150Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson09_activity1</loc>
<lastmod>2026-07-27T21:46:04.554Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_dams_lesson02_activity1</loc>
<lastmod>2026-07-27T21:46:03.985Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_getingear_activity1</loc>
<lastmod>2026-07-27T21:46:03.034Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_light_activity1</loc>
<lastmod>2026-07-27T21:46:02.580Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umn_pneumatics_activity01</loc>
<lastmod>2026-07-27T21:46:02.151Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uva_eardevice_act</loc>
<lastmod>2026-07-27T21:46:01.165Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst_environmental_lesson02_activity1</loc>
<lastmod>2026-07-27T21:46:00.591Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson01_activity2</loc>
<lastmod>2026-07-27T21:46:00.053Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson05_activity2</loc>
<lastmod>2026-07-27T21:45:58.940Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson02_activity2</loc>
<lastmod>2026-07-27T21:45:58.335Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson5_activity2</loc>
<lastmod>2026-07-27T21:45:57.206Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_detdrawings_lesson01_activity1</loc>
<lastmod>2026-07-27T21:45:56.158Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_solarenergy_lesson01_activity1</loc>
<lastmod>2026-07-27T21:45:55.620Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_dimension_tech_act</loc>
<lastmod>2026-07-27T21:45:55.023Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_valvedesign_tech_act</loc>
<lastmod>2026-07-27T21:45:54.494Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_feelbetter_lesson02_activity_02</loc>
<lastmod>2026-07-27T21:45:53.953Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucla_lava_activity01</loc>
<lastmod>2026-07-27T21:45:53.413Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_feelbetter_lesson01_activity01</loc>
<lastmod>2026-07-27T21:45:52.851Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_friction_smary_act2</loc>
<lastmod>2026-07-27T21:45:52.205Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson04_activity1</loc>
<lastmod>2026-07-27T21:45:51.634Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson06_activity1</loc>
<lastmod>2026-07-27T21:45:51.058Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson02_activity1</loc>
<lastmod>2026-07-27T21:45:50.512Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_creative_activity5</loc>
<lastmod>2026-07-27T21:45:49.792Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson05_activity1</loc>
<lastmod>2026-07-27T21:45:48.785Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_housing_lesson01_activity2</loc>
<lastmod>2026-07-27T21:45:47.790Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson06_activity2</loc>
<lastmod>2026-07-27T21:45:47.192Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_troll_lesson02_activity1</loc>
<lastmod>2026-07-27T21:45:46.647Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_solaroven_tech_act</loc>
<lastmod>2026-07-27T21:45:46.104Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson05_activity3</loc>
<lastmod>2026-07-27T21:45:45.558Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson09_activity1</loc>
<lastmod>2026-07-27T21:45:44.957Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_hydraulic_arm_challenge</loc>
<lastmod>2026-07-27T21:45:44.540Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_intro_lesson03_activity1</loc>
<lastmod>2026-07-27T21:45:43.445Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson10_activity1</loc>
<lastmod>2026-07-27T21:45:42.900Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson04_activity1</loc>
<lastmod>2026-07-27T21:45:42.335Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_brid_lesson01_activity2</loc>
<lastmod>2026-07-27T21:45:41.783Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson01_activity1</loc>
<lastmod>2026-07-27T21:45:41.232Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_creative_activity2</loc>
<lastmod>2026-07-27T21:45:39.657Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_surfactants_act2</loc>
<lastmod>2026-07-27T21:45:38.612Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_matlsci_lesson01_activity1</loc>
<lastmod>2026-07-27T21:45:38.089Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson06_activity2</loc>
<lastmod>2026-07-27T21:45:37.512Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson06_activity1</loc>
<lastmod>2026-07-27T21:45:36.955Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson06_activity1</loc>
<lastmod>2026-07-27T21:45:36.324Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_sep_mixtures_activity1</loc>
<lastmod>2026-07-27T21:45:35.779Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_tower_tech_act</loc>
<lastmod>2026-07-27T21:45:35.215Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson04_activity3</loc>
<lastmod>2026-07-27T21:45:34.190Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uconn_gliders_activity1</loc>
<lastmod>2026-07-27T21:45:33.751Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson07_activity1</loc>
<lastmod>2026-07-27T21:45:33.147Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/bones_sue</loc>
<lastmod>2026-07-27T21:45:32.724Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_insulation_activity1</loc>
<lastmod>2026-07-27T21:45:32.291Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson03_activity2</loc>
<lastmod>2026-07-27T21:45:31.694Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_boat_mary_act</loc>
<lastmod>2026-07-27T21:45:30.943Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_art_lesson01_activity2</loc>
<lastmod>2026-07-27T21:45:30.419Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson02_activity1</loc>
<lastmod>2026-07-27T21:45:29.818Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_lifescience_lesson04_activity1</loc>
<lastmod>2026-07-27T21:45:29.284Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson03_activity1</loc>
<lastmod>2026-07-27T21:45:28.720Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_membrane_activity3</loc>
<lastmod>2026-07-27T21:45:28.182Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mars_lesson01_activity1</loc>
<lastmod>2026-07-27T21:45:27.650Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mag_lesson2_activity1</loc>
<lastmod>2026-07-27T21:45:27.125Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/colors_absorb_heat_better</loc>
<lastmod>2026-07-27T21:45:26.249Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_statesofmatter_activity1</loc>
<lastmod>2026-07-27T21:45:25.355Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/roofs_for_different_climates</loc>
<lastmod>2026-07-27T21:45:24.804Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_solar_lesson02_activity1</loc>
<lastmod>2026-07-27T21:45:24.188Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_housing_lesson05_activity1</loc>
<lastmod>2026-07-27T21:45:23.632Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rock_lesson03_activity1</loc>
<lastmod>2026-07-27T21:45:23.055Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rock_lesson02_activity1</loc>
<lastmod>2026-07-27T21:45:22.441Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson04_activity2</loc>
<lastmod>2026-07-27T21:45:21.895Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson04_activity2</loc>
<lastmod>2026-07-27T21:45:21.327Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simp_machines_lesson05_activity1</loc>
<lastmod>2026-07-27T21:45:20.757Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson06_activity2</loc>
<lastmod>2026-07-27T21:45:20.194Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson03_activity2</loc>
<lastmod>2026-07-27T21:45:19.587Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_fracture_lesson01_activity1</loc>
<lastmod>2026-07-27T21:45:19.065Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson02_activity1</loc>
<lastmod>2026-07-27T21:45:17.569Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_lorax_activity1</loc>
<lastmod>2026-07-27T21:45:16.719Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/water_filtration</loc>
<lastmod>2026-07-27T21:45:16.272Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/disassemble_a_click_pen</loc>
<lastmod>2026-07-27T21:45:15.849Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson01_activity1</loc>
<lastmod>2026-07-27T21:45:15.317Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson06_activity2</loc>
<lastmod>2026-07-27T21:45:14.751Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson10_activity1</loc>
<lastmod>2026-07-27T21:45:14.157Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_cells_lesson01_activity1</loc>
<lastmod>2026-07-27T21:45:13.589Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mix_lesson3_activity1</loc>
<lastmod>2026-07-27T21:45:13.048Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_permeability_activity1</loc>
<lastmod>2026-07-27T21:45:12.617Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_brid_lesson02_activity1</loc>
<lastmod>2026-07-27T21:45:12.037Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson04_activity1</loc>
<lastmod>2026-07-27T21:45:11.483Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/space_shelter</loc>
<lastmod>2026-07-27T21:45:11.032Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson01_activity1</loc>
<lastmod>2026-07-27T21:45:10.478Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_engrdrawings_activity01</loc>
<lastmod>2026-07-27T21:45:10.026Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson09_activity3</loc>
<lastmod>2026-07-27T21:45:09.420Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_linear_activity1</loc>
<lastmod>2026-07-27T21:45:08.947Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson04_activity3</loc>
<lastmod>2026-07-27T21:45:08.325Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson01_activity1</loc>
<lastmod>2026-07-27T21:45:07.756Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_asteroid_lesson3_activity1_tg</loc>
<lastmod>2026-07-27T21:45:07.230Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_solar_lesson03_activity1</loc>
<lastmod>2026-07-27T21:45:06.655Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_bernoulli_lesson01_activity1</loc>
<lastmod>2026-07-27T21:45:06.097Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mix_lesson1_activity1</loc>
<lastmod>2026-07-27T21:45:05.557Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csu_reverse_activity1</loc>
<lastmod>2026-07-27T21:45:05.128Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_desal_lesson01_activity2</loc>
<lastmod>2026-07-27T21:45:04.485Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_latex_lesson02_activity1</loc>
<lastmod>2026-07-27T21:45:03.884Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_body_lesson01_activity1</loc>
<lastmod>2026-07-27T21:45:03.351Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice_density_activity1</loc>
<lastmod>2026-07-27T21:45:02.484Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_housing_lesson04_activity1</loc>
<lastmod>2026-07-27T21:45:01.888Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson2_activity4</loc>
<lastmod>2026-07-27T21:45:01.292Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_creative_activity4</loc>
<lastmod>2026-07-27T21:45:00.603Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_eureka_activity</loc>
<lastmod>2026-07-27T21:45:00.138Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson05_activity1</loc>
<lastmod>2026-07-27T21:44:59.532Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson02_activity1</loc>
<lastmod>2026-07-27T21:44:58.973Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_lightbalance_activity1</loc>
<lastmod>2026-07-27T21:44:58.540Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_challenges_lesson01_activity1</loc>
<lastmod>2026-07-27T21:44:57.710Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_noise_activity1</loc>
<lastmod>2026-07-27T21:44:57.249Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_mmm_activity1</loc>
<lastmod>2026-07-27T21:44:56.796Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mars_lesson02_activity1</loc>
<lastmod>2026-07-27T21:44:56.220Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson09_activity2</loc>
<lastmod>2026-07-27T21:44:54.693Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson02_activity1</loc>
<lastmod>2026-07-27T21:44:54.085Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/test_load</loc>
<lastmod>2026-07-27T21:44:52.893Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson04_activity2</loc>
<lastmod>2026-07-27T21:44:52.328Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_frictionforce_activity1</loc>
<lastmod>2026-07-27T21:44:51.917Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson03_activity4</loc>
<lastmod>2026-07-27T21:44:51.359Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_rocket_lesson01_activity1</loc>
<lastmod>2026-07-27T21:44:50.247Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_bio_lesson05_activity1</loc>
<lastmod>2026-07-27T21:44:48.614Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson03_activity2</loc>
<lastmod>2026-07-27T21:44:47.583Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson04_activity1</loc>
<lastmod>2026-07-27T21:44:47.010Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_nanoparticles_lesson03_activity1</loc>
<lastmod>2026-07-27T21:44:46.305Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson08_activity1</loc>
<lastmod>2026-07-27T21:44:45.280Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_fluidmechanics_lesson01_activity1</loc>
<lastmod>2026-07-27T21:44:44.290Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_bio_lesson02_activity1</loc>
<lastmod>2026-07-27T21:44:43.614Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson01_activity1</loc>
<lastmod>2026-07-27T21:44:42.995Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_oxygen_hydrogen_activity1</loc>
<lastmod>2026-07-27T21:44:42.562Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_intro_lesson04_activity1</loc>
<lastmod>2026-07-27T21:44:42.012Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson05_activity3</loc>
<lastmod>2026-07-27T21:44:41.462Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson06_activity3</loc>
<lastmod>2026-07-27T21:44:40.900Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson01_activity4</loc>
<lastmod>2026-07-27T21:44:40.219Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_weather_lesson04_activity1</loc>
<lastmod>2026-07-27T21:44:39.627Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/picframe_joy_act</loc>
<lastmod>2026-07-27T21:44:38.768Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson03_activity1</loc>
<lastmod>2026-07-27T21:44:38.217Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson03_activity3</loc>
<lastmod>2026-07-27T21:44:37.623Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_bridge_activity1</loc>
<lastmod>2026-07-27T21:44:37.207Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_ptarmigan_activity1</loc>
<lastmod>2026-07-27T21:44:36.744Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson02_activity2</loc>
<lastmod>2026-07-27T21:44:35.121Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson05_activity2</loc>
<lastmod>2026-07-27T21:44:34.545Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_surg_lesson04_activity2</loc>
<lastmod>2026-07-27T21:44:33.994Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_cutting_through_soil</loc>
<lastmod>2026-07-27T21:44:33.026Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_energy_experts_activity1</loc>
<lastmod>2026-07-27T21:44:32.598Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_opslime_activity1</loc>
<lastmod>2026-07-27T21:44:32.163Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_bridge_activity1</loc>
<lastmod>2026-07-27T21:44:31.722Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rube_goldberg_machine</loc>
<lastmod>2026-07-27T21:44:31.268Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/windchimes_sue</loc>
<lastmod>2026-07-27T21:44:30.797Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_birdhouse_act_joy</loc>
<lastmod>2026-07-27T21:44:30.388Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_lifescience_lesson03_activity2</loc>
<lastmod>2026-07-27T21:44:29.847Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_regionallocal_activity1</loc>
<lastmod>2026-07-27T21:44:29.399Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_smart_solar_activity1</loc>
<lastmod>2026-07-27T21:44:28.954Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_stresses_activity1</loc>
<lastmod>2026-07-27T21:44:28.470Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_curingcancer_activity1</loc>
<lastmod>2026-07-27T21:44:28.051Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_computerprogram_lesson04_activity1</loc>
<lastmod>2026-07-27T21:44:27.495Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/assistive_tech_sue</loc>
<lastmod>2026-07-27T21:44:27.074Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_computerprogram_lesson02_activity1</loc>
<lastmod>2026-07-27T21:44:25.373Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_creative_activity6</loc>
<lastmod>2026-07-27T21:44:24.684Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_hurricane_activity1</loc>
<lastmod>2026-07-27T21:44:24.233Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_rolling_blackouts</loc>
<lastmod>2026-07-27T21:44:23.748Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wimpy_radar_antenna</loc>
<lastmod>2026-07-27T21:44:23.169Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/utpa_gentle_activity1</loc>
<lastmod>2026-07-27T21:44:22.696Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_junit_lesson01_activity1</loc>
<lastmod>2026-07-27T21:44:22.152Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/stop_the_stretching</loc>
<lastmod>2026-07-27T21:44:21.561Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_asteroid_lesson7_activity1_tg</loc>
<lastmod>2026-07-27T21:44:21.006Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/squeeze_is_on</loc>
<lastmod>2026-07-27T21:44:20.450Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/time_challenge</loc>
<lastmod>2026-07-27T21:44:20.036Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/utpa_invisible_activity1</loc>
<lastmod>2026-07-27T21:44:19.603Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_mobile_mary_act</loc>
<lastmod>2026-07-27T21:44:18.891Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_balsa_tech_act</loc>
<lastmod>2026-07-27T21:44:18.353Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/a_house_for_me</loc>
<lastmod>2026-07-27T21:44:17.798Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/construct_an_aqueduct</loc>
<lastmod>2026-07-27T21:44:17.370Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/charlottes_web</loc>
<lastmod>2026-07-27T21:44:16.916Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_foodpackage_music_act</loc>
<lastmod>2026-07-27T21:44:16.401Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_carbon_lesson01_activity1</loc>
<lastmod>2026-07-27T21:44:15.875Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_drink_activity01</loc>
<lastmod>2026-07-27T21:44:15.423Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_computerprogram_lesson03_activity1</loc>
<lastmod>2026-07-27T21:44:14.800Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_deformation_activity1</loc>
<lastmod>2026-07-27T21:44:14.374Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_bridge_joy_act</loc>
<lastmod>2026-07-27T21:44:13.943Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_pveff_lesson04_activity1</loc>
<lastmod>2026-07-27T21:44:13.389Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_plainsight_lesson01_activity1</loc>
<lastmod>2026-07-27T21:44:12.450Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_sensory_toys_activity1</loc>
<lastmod>2026-07-27T21:44:10.807Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_ambulance_activity1</loc>
<lastmod>2026-07-27T21:44:10.357Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_drinkthat_activity1</loc>
<lastmod>2026-07-27T21:44:09.888Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_asteroid_lesson2_activity1_tg</loc>
<lastmod>2026-07-27T21:44:09.329Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_eyes_lesson01_activity1</loc>
<lastmod>2026-07-27T21:44:08.795Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_dig_mapping_activity3</loc>
<lastmod>2026-07-27T21:44:08.162Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_wristwatch_activity1</loc>
<lastmod>2026-07-27T21:44:07.736Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usu_fastfood_activity1</loc>
<lastmod>2026-07-27T21:44:07.304Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_waterqtnew_lesson01_activity1</loc>
<lastmod>2026-07-27T21:44:06.753Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/hydraulic_joy</loc>
<lastmod>2026-07-27T21:44:06.311Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_energypriorities_activity1</loc>
<lastmod>2026-07-27T21:44:05.883Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_powershool_activity1</loc>
<lastmod>2026-07-27T21:44:05.464Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_dna_lesson01_activity1</loc>
<lastmod>2026-07-27T21:44:03.914Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson03_activity2</loc>
<lastmod>2026-07-27T21:44:02.781Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rock_lesson01_activity1</loc>
<lastmod>2026-07-27T21:44:02.199Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_robotic_vision_activity2</loc>
<lastmod>2026-07-27T21:44:01.629Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_bungee_activity1</loc>
<lastmod>2026-07-27T21:44:01.202Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_mouse_trap_activity1</loc>
<lastmod>2026-07-27T21:44:00.714Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_heartvalves_lesson01_activity2</loc>
<lastmod>2026-07-27T21:44:00.155Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_stormwater_lesson02_activity1</loc>
<lastmod>2026-07-27T21:43:59.531Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ksu_zooniverse_activity1</loc>
<lastmod>2026-07-27T21:43:59.106Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_pharma_lesson01_activity1</loc>
<lastmod>2026-07-27T21:43:58.558Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_energymusic_mem_act</loc>
<lastmod>2026-07-27T21:43:58.048Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson08_activity2</loc>
<lastmod>2026-07-27T21:43:57.514Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/portable_sundial</loc>
<lastmod>2026-07-27T21:43:57.096Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson09_activity2</loc>
<lastmod>2026-07-27T21:43:56.534Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_graphtheory_lesson01_activity2</loc>
<lastmod>2026-07-27T21:43:56.019Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_wizardry_activity1</loc>
<lastmod>2026-07-27T21:43:55.588Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_engineering_our_water_lesson1_activity1_tg</loc>
<lastmod>2026-07-27T21:43:55.049Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_biomimicry_activity6</loc>
<lastmod>2026-07-27T21:43:54.525Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_asteroid_lesson6_activity1_tg</loc>
<lastmod>2026-07-27T21:43:53.573Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_stormwater_lesson02_activity2</loc>
<lastmod>2026-07-27T21:43:52.993Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_stormwater_lesson02_activity3</loc>
<lastmod>2026-07-27T21:43:52.333Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_marine_musc_act2</loc>
<lastmod>2026-07-27T21:43:51.744Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_eenergy_mem_act</loc>
<lastmod>2026-07-27T21:43:51.246Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_surfacetensionunit_act3</loc>
<lastmod>2026-07-27T21:43:50.668Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/human_natural_sue</loc>
<lastmod>2026-07-27T21:43:50.252Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_graphtheory_lesson01_activity1</loc>
<lastmod>2026-07-27T21:43:49.741Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_soundandlight_lesson3_activity1</loc>
<lastmod>2026-07-27T21:43:49.135Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_heartvalves_lesson02_activity1</loc>
<lastmod>2026-07-27T21:43:48.573Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson08_activity1</loc>
<lastmod>2026-07-27T21:43:48.010Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_surfacetensionunit_act2a</loc>
<lastmod>2026-07-27T21:43:46.962Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_mri_act_less_2</loc>
<lastmod>2026-07-27T21:43:46.393Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_invisible_activity1</loc>
<lastmod>2026-07-27T21:43:45.966Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson04_activity2</loc>
<lastmod>2026-07-27T21:43:45.315Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_biomimicry_activity2</loc>
<lastmod>2026-07-27T21:43:44.733Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_redox_activity1</loc>
<lastmod>2026-07-27T21:43:44.319Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson02_activity2</loc>
<lastmod>2026-07-27T21:43:43.737Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_magic_lesson01_activity1</loc>
<lastmod>2026-07-27T21:43:43.196Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson03_activity2</loc>
<lastmod>2026-07-27T21:43:40.454Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_connection_lesson01_activity1</loc>
<lastmod>2026-07-27T21:43:39.941Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_tower_activity1</loc>
<lastmod>2026-07-27T21:43:39.481Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_powergen_tech_act</loc>
<lastmod>2026-07-27T21:43:38.956Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_circuit_lesson01_activity1</loc>
<lastmod>2026-07-27T21:43:37.975Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson02_activity1</loc>
<lastmod>2026-07-27T21:43:37.344Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_biomimicry_activity1</loc>
<lastmod>2026-07-27T21:43:36.787Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_dna_lesson02_activity1</loc>
<lastmod>2026-07-27T21:43:36.266Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_microbes_lesson01_activity1</loc>
<lastmod>2026-07-27T21:43:35.764Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_mri_act_less_8</loc>
<lastmod>2026-07-27T21:43:34.763Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson03_activity1</loc>
<lastmod>2026-07-27T21:43:34.218Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_traffic_lesson01_activity1</loc>
<lastmod>2026-07-27T21:43:33.704Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/hummol_joy_act</loc>
<lastmod>2026-07-27T21:43:33.295Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_heartvalves_lesson01_activity1</loc>
<lastmod>2026-07-27T21:43:32.737Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_robotic_vision_activity1</loc>
<lastmod>2026-07-27T21:43:32.191Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_surg_lesson01_activity1</loc>
<lastmod>2026-07-27T21:43:31.170Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_soundwaves_activity1</loc>
<lastmod>2026-07-27T21:43:30.738Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_dams_lesson01_activity1</loc>
<lastmod>2026-07-27T21:43:30.158Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson04_activity1</loc>
<lastmod>2026-07-27T21:43:29.546Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst_environmental_lesson01_activity1</loc>
<lastmod>2026-07-27T21:43:28.443Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simp_machines_lesson01_activity1</loc>
<lastmod>2026-07-27T21:43:27.914Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_bio_lesson01_activity1</loc>
<lastmod>2026-07-27T21:43:27.369Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_triangles_activity1</loc>
<lastmod>2026-07-27T21:43:26.802Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_watershed_lesson01_activity1</loc>
<lastmod>2026-07-27T21:43:26.347Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson04_activity4</loc>
<lastmod>2026-07-27T21:43:25.743Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_surfacetensionunit_act4</loc>
<lastmod>2026-07-27T21:43:25.118Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson05_activity2</loc>
<lastmod>2026-07-27T21:43:24.569Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson01_activity1</loc>
<lastmod>2026-07-27T21:43:24.016Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simple_lesson05_activity1</loc>
<lastmod>2026-07-27T21:43:23.467Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_phi_activity1</loc>
<lastmod>2026-07-27T21:43:22.941Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/design_weather_instruments</loc>
<lastmod>2026-07-27T21:43:22.043Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_biorecycling_lesson01_activity3</loc>
<lastmod>2026-07-27T21:43:21.540Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spect_activity8</loc>
<lastmod>2026-07-27T21:43:20.768Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_biomimicry_activity4</loc>
<lastmod>2026-07-27T21:43:20.223Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_sensing_activity1</loc>
<lastmod>2026-07-27T21:43:19.799Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_humanwatercycle_lesson01_activity1</loc>
<lastmod>2026-07-27T21:43:19.195Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_soundandlight_lesson4_activity1</loc>
<lastmod>2026-07-27T21:43:18.585Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_lighting_lesson01_activity1</loc>
<lastmod>2026-07-27T21:43:18.071Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/design_packing</loc>
<lastmod>2026-07-27T21:43:17.636Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_biorecycling_lesson01_activity2</loc>
<lastmod>2026-07-27T21:43:17.088Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_cleaning_robot_activity1</loc>
<lastmod>2026-07-27T21:43:16.648Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_retcoulter_act1</loc>
<lastmod>2026-07-27T21:43:16.106Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_fibonacci_activity1</loc>
<lastmod>2026-07-27T21:43:15.208Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_haptics_activity1</loc>
<lastmod>2026-07-27T21:43:14.771Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_biomimicry_activity1</loc>
<lastmod>2026-07-27T21:43:14.293Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_sensorswork_lesson02_activity1</loc>
<lastmod>2026-07-27T21:43:13.724Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_decimals_activity1</loc>
<lastmod>2026-07-27T21:43:13.273Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_activity1_battlebots</loc>
<lastmod>2026-07-27T21:43:12.847Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_matls_activity1</loc>
<lastmod>2026-07-27T21:43:12.418Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_robotic_perimeter_activity1</loc>
<lastmod>2026-07-27T21:43:11.983Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_pumpit_activity1</loc>
<lastmod>2026-07-27T21:43:11.552Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_weather_lesson03_activity1</loc>
<lastmod>2026-07-27T21:43:10.967Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cmu_fruit_activity1</loc>
<lastmod>2026-07-27T21:43:10.473Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_china_lesson03_activity1</loc>
<lastmod>2026-07-27T21:43:09.387Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_linear_eqn_act2_less5</loc>
<lastmod>2026-07-27T21:43:08.732Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_doesitwork_lesson01_activity1</loc>
<lastmod>2026-07-27T21:43:08.222Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_walk_lesson01_activity2</loc>
<lastmod>2026-07-27T21:43:07.662Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_troll_lesson04_activity1</loc>
<lastmod>2026-07-27T21:43:07.125Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_surgicaldevices_tech_act</loc>
<lastmod>2026-07-27T21:43:06.592Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/compare_fabric_materials</loc>
<lastmod>2026-07-27T21:43:06.168Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_soundandlight_lesson7_activity1</loc>
<lastmod>2026-07-27T21:43:05.634Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/touch_and_discover</loc>
<lastmod>2026-07-27T21:43:05.201Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_linear_eqn_act_less4</loc>
<lastmod>2026-07-27T21:43:04.524Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_engineering_our_water_lesson1_activity2_tg</loc>
<lastmod>2026-07-27T21:43:04.022Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_motion_activity1</loc>
<lastmod>2026-07-27T21:43:03.507Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ksu_pingus_activity1</loc>
<lastmod>2026-07-27T21:43:03.065Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_amazon_lesson2_activity1_tg</loc>
<lastmod>2026-07-27T21:43:02.550Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_energy_lesson03_activity1</loc>
<lastmod>2026-07-27T21:43:01.982Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/design_packing_that_works</loc>
<lastmod>2026-07-27T21:43:01.017Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_angular_activity1</loc>
<lastmod>2026-07-27T21:43:00.567Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_robotsandhumans_act1</loc>
<lastmod>2026-07-27T21:42:59.993Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_gears2_activity1</loc>
<lastmod>2026-07-27T21:42:59.574Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_measuring_activity1</loc>
<lastmod>2026-07-27T21:42:59.149Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_robotsandhumans_act2</loc>
<lastmod>2026-07-27T21:42:58.589Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_bioniceye_activity1</loc>
<lastmod>2026-07-27T21:42:58.144Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_empathy_activity3</loc>
<lastmod>2026-07-27T21:42:57.578Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_dig_mapping_activity5</loc>
<lastmod>2026-07-27T21:42:56.995Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_dig_mapping_activity6</loc>
<lastmod>2026-07-27T21:42:56.307Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_handheld_lesson01_activity1</loc>
<lastmod>2026-07-27T21:42:55.317Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_dig_mapping_activity2</loc>
<lastmod>2026-07-27T21:42:54.719Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson05_activity1</loc>
<lastmod>2026-07-27T21:42:54.148Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_oddsofcancer_lesson02_activity1</loc>
<lastmod>2026-07-27T21:42:53.536Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_qandq_activity1</loc>
<lastmod>2026-07-27T21:42:53.113Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_nano_lesson02_activity4</loc>
<lastmod>2026-07-27T21:42:52.561Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_nano_lesson02_activity2</loc>
<lastmod>2026-07-27T21:42:51.982Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_mri_act_less_6</loc>
<lastmod>2026-07-27T21:42:51.388Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson10_activity4</loc>
<lastmod>2026-07-27T21:42:50.848Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson10_activity2</loc>
<lastmod>2026-07-27T21:42:50.246Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simple_lesson02_activity1</loc>
<lastmod>2026-07-27T21:42:49.710Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spect_activity3</loc>
<lastmod>2026-07-27T21:42:49.146Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson06_activity1</loc>
<lastmod>2026-07-27T21:42:48.590Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_avida_lesson01_activity1</loc>
<lastmod>2026-07-27T21:42:48.049Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson03_activity1</loc>
<lastmod>2026-07-27T21:42:47.475Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_lending_hand_activity1</loc>
<lastmod>2026-07-27T21:42:47.060Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_music_choi_act</loc>
<lastmod>2026-07-27T21:42:46.520Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_cancer_activity3</loc>
<lastmod>2026-07-27T21:42:45.929Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson07_activity1</loc>
<lastmod>2026-07-27T21:42:45.381Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_penny_activity1</loc>
<lastmod>2026-07-27T21:42:44.523Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_neworleans_activity1</loc>
<lastmod>2026-07-27T21:42:44.034Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_landfill_music_act</loc>
<lastmod>2026-07-27T21:42:43.500Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_skeletal_system_activity2</loc>
<lastmod>2026-07-27T21:42:42.909Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_packaging_materials</loc>
<lastmod>2026-07-27T21:42:42.499Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_bmd_activity1</loc>
<lastmod>2026-07-27T21:42:41.978Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_claw_activity1</loc>
<lastmod>2026-07-27T21:42:41.118Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_robotic_vision_activity3</loc>
<lastmod>2026-07-27T21:42:40.555Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_oddsofcancer_lesson04_activity1</loc>
<lastmod>2026-07-27T21:42:39.991Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_traffic_activity1</loc>
<lastmod>2026-07-27T21:42:39.568Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_membrane_activity1</loc>
<lastmod>2026-07-27T21:42:39.038Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spect_activity6</loc>
<lastmod>2026-07-27T21:42:37.330Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_biosensors_lesson01_activity1</loc>
<lastmod>2026-07-27T21:42:36.792Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_membrane_activity4</loc>
<lastmod>2026-07-27T21:42:36.189Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_dig_mapping_activity4</loc>
<lastmod>2026-07-27T21:42:35.595Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_oddsofcancer_lesson03_activity1</loc>
<lastmod>2026-07-27T21:42:34.517Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_skeletal_system_activity3</loc>
<lastmod>2026-07-27T21:42:33.912Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_python_lesson01_activity1</loc>
<lastmod>2026-07-27T21:42:33.406Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_sandpwaves_activity1</loc>
<lastmod>2026-07-27T21:42:32.954Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_population_activity1</loc>
<lastmod>2026-07-27T21:42:32.534Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_hybrid_design_activity3</loc>
<lastmod>2026-07-27T21:42:31.947Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson02_activity1</loc>
<lastmod>2026-07-27T21:42:31.406Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_life_lesson01_activity1</loc>
<lastmod>2026-07-27T21:42:30.880Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_nano_lesson02_activity3</loc>
<lastmod>2026-07-27T21:42:30.314Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rock_lesson04_activity1</loc>
<lastmod>2026-07-27T21:42:29.762Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson05_activity2</loc>
<lastmod>2026-07-27T21:42:29.216Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_cancer_activity2</loc>
<lastmod>2026-07-27T21:42:28.610Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_energy_lesson01_activity1</loc>
<lastmod>2026-07-27T21:42:27.613Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_float_mary_act</loc>
<lastmod>2026-07-27T21:42:27.042Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_solar_lesson07_activity1</loc>
<lastmod>2026-07-27T21:42:26.510Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_magnets_activity1</loc>
<lastmod>2026-07-27T21:42:26.085Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_swing_lesson01_activity1</loc>
<lastmod>2026-07-27T21:42:25.554Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_asteroid_lesson4_activity1_tg</loc>
<lastmod>2026-07-27T21:42:24.968Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_appinventor_lesson01_activity1</loc>
<lastmod>2026-07-27T21:42:24.466Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_neuron_lesson01_activity1</loc>
<lastmod>2026-07-27T21:42:23.951Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_empathy_activity2</loc>
<lastmod>2026-07-27T21:42:22.821Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson1_activity1</loc>
<lastmod>2026-07-27T21:42:22.271Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson09_activity1</loc>
<lastmod>2026-07-27T21:42:21.289Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_sep_mixtures_activity2</loc>
<lastmod>2026-07-27T21:42:20.305Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson04_activity2</loc>
<lastmod>2026-07-27T21:42:19.763Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_weather_lesson06_activity1</loc>
<lastmod>2026-07-27T21:42:19.228Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_space8_lesson03_activity1</loc>
<lastmod>2026-07-27T21:42:18.666Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_creative_activity3</loc>
<lastmod>2026-07-27T21:42:17.959Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_surfactants_act3</loc>
<lastmod>2026-07-27T21:42:17.541Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_surfactants_act1</loc>
<lastmod>2026-07-27T21:42:17.125Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_projectile_activity1</loc>
<lastmod>2026-07-27T21:42:16.709Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_howcold_activity1</loc>
<lastmod>2026-07-27T21:42:15.816Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson08_activity1</loc>
<lastmod>2026-07-27T21:42:15.275Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson05_activity3</loc>
<lastmod>2026-07-27T21:42:14.235Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_lifescience_lesson02_activity1</loc>
<lastmod>2026-07-27T21:42:13.668Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_maxwell_lesson01_activity1</loc>
<lastmod>2026-07-27T21:42:13.165Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson02_activity1</loc>
<lastmod>2026-07-27T21:42:12.551Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson01_activity2</loc>
<lastmod>2026-07-27T21:42:12.003Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_heaveho_music_act</loc>
<lastmod>2026-07-27T21:42:11.511Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson05_activity1</loc>
<lastmod>2026-07-27T21:42:10.949Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_viking_ship_lesson01</loc>
<lastmod>2026-07-27T21:42:10.501Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson03_activity1</loc>
<lastmod>2026-07-27T21:42:09.873Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_amazon_lesson5_activity1_tg</loc>
<lastmod>2026-07-27T21:42:09.310Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_soundandlight_lesson2_activity1</loc>
<lastmod>2026-07-27T21:42:08.752Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson07_activity1</loc>
<lastmod>2026-07-27T21:42:08.220Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_soundandlight_lesson6_activity1</loc>
<lastmod>2026-07-27T21:42:07.224Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_bacteria_activity1</loc>
<lastmod>2026-07-27T21:42:05.255Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_concentration_activity1</loc>
<lastmod>2026-07-27T21:42:04.807Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson01_activity1</loc>
<lastmod>2026-07-27T21:42:04.277Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mag_lesson2_activity2</loc>
<lastmod>2026-07-27T21:42:03.651Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson03_activity1</loc>
<lastmod>2026-07-27T21:42:03.097Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson07_activity1</loc>
<lastmod>2026-07-27T21:42:02.531Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson10_activity1</loc>
<lastmod>2026-07-27T21:42:01.962Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_puttingrobots_activity1</loc>
<lastmod>2026-07-27T21:42:01.545Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson06_activity1</loc>
<lastmod>2026-07-27T21:42:00.969Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mars_lesson06_activity1</loc>
<lastmod>2026-07-27T21:42:00.322Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson01_activity3</loc>
<lastmod>2026-07-27T21:41:59.744Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_art_lesson01_activity1</loc>
<lastmod>2026-07-27T21:41:59.221Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_drops_mary_act</loc>
<lastmod>2026-07-27T21:41:58.688Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_nanoparticles_lesson02_activity2</loc>
<lastmod>2026-07-27T21:41:57.994Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_lesson8_activity1_tg</loc>
<lastmod>2026-07-27T21:41:57.433Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_amradio_tech_act</loc>
<lastmod>2026-07-27T21:41:56.930Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_flow_activity1</loc>
<lastmod>2026-07-27T21:41:56.496Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_linear_eqn_act_less2</loc>
<lastmod>2026-07-27T21:41:55.807Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson05_activity3</loc>
<lastmod>2026-07-27T21:41:55.248Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_pirates_lesson01_activity1</loc>
<lastmod>2026-07-27T21:41:54.732Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson09_activity2</loc>
<lastmod>2026-07-27T21:41:54.107Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson01_activity2</loc>
<lastmod>2026-07-27T21:41:53.502Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_maze_joy_act</loc>
<lastmod>2026-07-27T21:41:52.481Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_surfacetensionunit_act1</loc>
<lastmod>2026-07-27T21:41:51.951Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_gears_activity1</loc>
<lastmod>2026-07-27T21:41:51.529Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_unitconv_activity1</loc>
<lastmod>2026-07-27T21:41:51.098Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_elevators_activity1</loc>
<lastmod>2026-07-27T21:41:50.591Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_pi_activity1</loc>
<lastmod>2026-07-27T21:41:50.152Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_farmland_activity1</loc>
<lastmod>2026-07-27T21:41:49.715Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_robots_act</loc>
<lastmod>2026-07-27T21:41:49.133Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_measuringp_activity1</loc>
<lastmod>2026-07-27T21:41:48.713Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_sensorswork_lesson01_activity1</loc>
<lastmod>2026-07-27T21:41:48.020Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_rockps_activity1</loc>
<lastmod>2026-07-27T21:41:47.569Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_robotsandhumans_act4</loc>
<lastmod>2026-07-27T21:41:46.967Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_fat_activity1</loc>
<lastmod>2026-07-27T21:41:46.546Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_boxes_mary_act</loc>
<lastmod>2026-07-27T21:41:45.465Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson06_activity1</loc>
<lastmod>2026-07-27T21:41:44.871Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_diffraction_activity1</loc>
<lastmod>2026-07-27T21:41:44.454Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_milk_activity1</loc>
<lastmod>2026-07-27T21:41:44.033Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson04_activity5</loc>
<lastmod>2026-07-27T21:41:43.483Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson04_activity2</loc>
<lastmod>2026-07-27T21:41:42.940Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson04_activity1</loc>
<lastmod>2026-07-27T21:41:42.389Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson06_activity2</loc>
<lastmod>2026-07-27T21:41:41.823Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson01_activity2</loc>
<lastmod>2026-07-29T21:11:37.045Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simple_lesson03_activity1</loc>
<lastmod>2026-07-27T21:41:40.736Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson07_activity3</loc>
<lastmod>2026-07-27T21:41:40.120Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_tall_mary_act</loc>
<lastmod>2026-07-27T21:41:39.609Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simple_lesson01_activity2</loc>
<lastmod>2026-07-27T21:41:39.066Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson09_activity3</loc>
<lastmod>2026-07-27T21:41:38.380Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson08_activity2</loc>
<lastmod>2026-07-27T21:41:37.747Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson07_activity2</loc>
<lastmod>2026-07-27T21:41:37.183Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson05_activity3</loc>
<lastmod>2026-07-27T21:41:36.571Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson01_activity3</loc>
<lastmod>2026-07-27T21:41:35.989Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_train_activity1</loc>
<lastmod>2026-07-27T21:41:35.569Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson02_activity2</loc>
<lastmod>2026-07-27T21:41:35.022Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson01_activity1</loc>
<lastmod>2026-07-27T21:41:34.471Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson02_activity2</loc>
<lastmod>2026-07-27T21:41:33.887Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_faucets_lesson1_activity1</loc>
<lastmod>2026-07-27T21:41:33.343Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_feet_activity1</loc>
<lastmod>2026-07-27T21:41:32.410Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_gps_lesson01_activity1</loc>
<lastmod>2026-07-27T21:41:31.881Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_gatorade_activity1</loc>
<lastmod>2026-07-27T21:41:31.432Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_surg_lesson04_activity1</loc>
<lastmod>2026-07-27T21:41:30.875Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_cooling_activity1</loc>
<lastmod>2026-07-27T21:41:30.410Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_avida2_activity</loc>
<lastmod>2026-07-27T21:41:29.899Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_doyousee_lesson01_activity1</loc>
<lastmod>2026-07-27T21:41:29.346Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umn_shock_activity1</loc>
<lastmod>2026-07-27T21:41:28.863Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson08_activity3</loc>
<lastmod>2026-07-27T21:41:28.277Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_drink_lesson01_activity1</loc>
<lastmod>2026-07-27T21:41:27.774Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_marine_musc_act</loc>
<lastmod>2026-07-27T21:41:26.807Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_soil_activity1</loc>
<lastmod>2026-07-27T21:41:26.302Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_intro_lesson06_activity1</loc>
<lastmod>2026-07-27T21:41:25.649Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_cleanupmess_act1</loc>
<lastmod>2026-07-27T21:41:25.158Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_troll_lesson03_activity1</loc>
<lastmod>2026-07-27T21:41:24.596Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_intro_lesson05_activity1</loc>
<lastmod>2026-07-27T21:41:24.053Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/gat_surface_tension_activity1</loc>
<lastmod>2026-07-27T21:41:23.621Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson03_activity1</loc>
<lastmod>2026-07-27T21:41:23.043Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spect_activity4</loc>
<lastmod>2026-07-27T21:41:22.331Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_bmd_activity3</loc>
<lastmod>2026-07-27T21:41:21.757Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_hello_activity</loc>
<lastmod>2026-07-27T21:41:21.337Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson05_activity1</loc>
<lastmod>2026-07-27T21:41:20.762Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson06_activity3</loc>
<lastmod>2026-07-27T21:41:20.192Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_friction_smary_act3</loc>
<lastmod>2026-07-27T21:41:19.513Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mobile_sue</loc>
<lastmod>2026-07-27T21:41:19.104Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_bmd_activity2</loc>
<lastmod>2026-07-27T21:41:18.550Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_perm_usman_act</loc>
<lastmod>2026-07-27T21:41:18.047Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson01_activity1</loc>
<lastmod>2026-07-27T21:41:17.316Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uva_pump_bme0607_act</loc>
<lastmod>2026-07-27T21:41:16.891Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson05_activity2</loc>
<lastmod>2026-07-27T21:41:16.340Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spect_activity5</loc>
<lastmod>2026-07-27T21:41:15.648Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson04_activity3</loc>
<lastmod>2026-07-27T21:41:15.066Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_avida_lesson01_activity2</loc>
<lastmod>2026-07-27T21:41:14.463Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson2_activity2</loc>
<lastmod>2026-07-27T21:41:13.880Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson08_activity2</loc>
<lastmod>2026-07-27T21:41:13.334Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson10_activity2</loc>
<lastmod>2026-07-27T21:41:12.758Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson03_activity2</loc>
<lastmod>2026-07-27T21:41:12.142Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_flow_activity2</loc>
<lastmod>2026-07-27T21:41:11.682Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson3_activity1</loc>
<lastmod>2026-07-27T21:41:10.585Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_aerogel_lesson01_activity1</loc>
<lastmod>2026-07-27T21:41:10.068Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_lunar_muscle_act</loc>
<lastmod>2026-07-27T21:41:09.510Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_parallel_activity1</loc>
<lastmod>2026-07-27T21:41:09.086Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_pushpull_activity1</loc>
<lastmod>2026-07-27T21:41:08.241Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_working_activity1</loc>
<lastmod>2026-07-27T21:41:07.817Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson03_activity2</loc>
<lastmod>2026-07-27T21:41:07.115Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson06_activity3</loc>
<lastmod>2026-07-27T21:41:06.563Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson05_activity1</loc>
<lastmod>2026-07-27T21:41:05.526Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_taste_mary_act</loc>
<lastmod>2026-07-27T21:41:05.011Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_pulleys_activity1</loc>
<lastmod>2026-07-27T21:41:04.133Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_foucault_activity1</loc>
<lastmod>2026-07-27T21:41:03.694Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_accuracy_activity1</loc>
<lastmod>2026-07-27T21:41:03.235Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_robotwheels_activity1</loc>
<lastmod>2026-07-27T21:41:02.817Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_montecarlo_activity1</loc>
<lastmod>2026-07-27T21:41:02.380Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_speedbot_activity1</loc>
<lastmod>2026-07-27T21:41:01.948Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_challenges_lesson02_activity1</loc>
<lastmod>2026-07-27T21:41:01.233Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_springforce_activity1</loc>
<lastmod>2026-07-27T21:41:00.772Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_roboclock_activity1</loc>
<lastmod>2026-07-27T21:41:00.347Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_ultrasound</loc>
<lastmod>2026-07-27T21:40:59.916Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_carpotential_activity1</loc>
<lastmod>2026-07-27T21:40:59.490Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_robotgo_activity1</loc>
<lastmod>2026-07-27T21:40:59.062Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_accelerometer_activity1</loc>
<lastmod>2026-07-27T21:40:58.640Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_seesaw_activity1</loc>
<lastmod>2026-07-27T21:40:58.203Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_arctic_activity1</loc>
<lastmod>2026-07-27T21:40:57.770Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_linear_eqn_act1_less5</loc>
<lastmod>2026-07-27T21:40:55.769Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_nanoparticles_lesson01_activity1</loc>
<lastmod>2026-07-27T21:40:55.224Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_surfacetensionunit_act2b</loc>
<lastmod>2026-07-27T21:40:54.608Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson02_activity3</loc>
<lastmod>2026-07-27T21:40:54.036Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucla_clots_lesson01_activity1</loc>
<lastmod>2026-07-27T21:40:53.509Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_hybrid_design_activity1</loc>
<lastmod>2026-07-27T21:40:51.991Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson03_activity2</loc>
<lastmod>2026-07-27T21:40:51.453Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/pur_fluidpower_act</loc>
<lastmod>2026-07-27T21:40:50.928Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson03_activity1</loc>
<lastmod>2026-07-27T21:40:50.330Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_amazon_lesson4_activity1_tg</loc>
<lastmod>2026-07-27T21:40:49.261Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson2_activity3</loc>
<lastmod>2026-07-27T21:40:48.690Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson04_activity1</loc>
<lastmod>2026-07-27T21:40:48.040Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson10_activity1</loc>
<lastmod>2026-07-27T21:40:47.451Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_lesson6_activity2_tg</loc>
<lastmod>2026-07-27T21:40:46.489Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson07_activity1</loc>
<lastmod>2026-07-27T21:40:45.949Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson6_activity1</loc>
<lastmod>2026-07-27T21:40:45.407Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson08_activity1</loc>
<lastmod>2026-07-27T21:40:44.867Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson07_activity2</loc>
<lastmod>2026-07-27T21:40:44.316Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rivers_lesson01_activity1</loc>
<lastmod>2026-07-27T21:40:43.771Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson04_activity1</loc>
<lastmod>2026-07-27T21:40:41.540Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_cleanupmess_act2</loc>
<lastmod>2026-07-27T21:40:40.984Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson10_activity3</loc>
<lastmod>2026-07-27T21:40:40.420Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_hp_activity_acidic_ink</loc>
<lastmod>2026-07-27T21:40:39.884Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_healthcare_lesson01_activity1</loc>
<lastmod>2026-07-27T21:40:38.993Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson09_activity1</loc>
<lastmod>2026-07-27T21:40:38.439Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_fluidmechanics_lesson01_activity2</loc>
<lastmod>2026-07-27T21:40:37.850Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson04_activity5</loc>
<lastmod>2026-07-27T21:40:37.243Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson02_activity2</loc>
<lastmod>2026-07-27T21:40:36.687Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson02_activity1</loc>
<lastmod>2026-07-27T21:40:36.143Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_temp_activity1</loc>
<lastmod>2026-07-27T21:40:35.714Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson03_activity3</loc>
<lastmod>2026-07-27T21:40:35.135Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_housing_lesson03_activity2</loc>
<lastmod>2026-07-27T21:40:34.564Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_plastic_activity1</loc>
<lastmod>2026-07-27T21:40:34.138Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_cellresp_mary_act</loc>
<lastmod>2026-07-27T21:40:33.603Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_brid_lesson04_activity1</loc>
<lastmod>2026-07-27T21:40:33.037Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson03_activity2</loc>
<lastmod>2026-07-27T21:40:32.424Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_bycatchunit_musc_act3</loc>
<lastmod>2026-07-27T21:40:31.848Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_cancer_activity1</loc>
<lastmod>2026-07-27T21:40:30.867Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uta_dense_lesson01_activity1</loc>
<lastmod>2026-07-27T21:40:30.356Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_troll_lesson01_activity1</loc>
<lastmod>2026-07-27T21:40:29.798Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_amazon_lesson6_activity1_tg</loc>
<lastmod>2026-07-27T21:40:29.237Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_intro_lesson02_activity1</loc>
<lastmod>2026-07-27T21:40:28.706Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_amazon_lesson3_activity1_tg</loc>
<lastmod>2026-07-27T21:40:28.160Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/clem_waves_activity</loc>
<lastmod>2026-07-27T21:40:27.593Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_dome_lesson01_activity1</loc>
<lastmod>2026-07-27T21:40:26.618Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_sound_lesson03_activity1</loc>
<lastmod>2026-07-27T21:40:25.528Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_liver_activity1</loc>
<lastmod>2026-07-27T21:40:24.893Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson03_activity1</loc>
<lastmod>2026-07-27T21:40:24.281Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_brid_lesson05_activity1</loc>
<lastmod>2026-07-27T21:40:23.727Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_bubble_mary_act</loc>
<lastmod>2026-07-27T21:40:23.187Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_electricity_lesson01_activity1</loc>
<lastmod>2026-07-27T21:40:22.239Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_heat_lesson1_activity1</loc>
<lastmod>2026-07-27T21:40:21.700Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson04_activity2</loc>
<lastmod>2026-07-27T21:40:21.059Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson02_activity1</loc>
<lastmod>2026-07-27T21:40:20.499Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/semisolid_sue</loc>
<lastmod>2026-07-27T21:40:19.509Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_cleanupmess_act3</loc>
<lastmod>2026-07-27T21:40:18.946Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rock_lesson05_activity1</loc>
<lastmod>2026-07-27T21:40:18.405Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_maxwell_lesson01_activity2</loc>
<lastmod>2026-07-27T21:40:17.860Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_massba_activity1</loc>
<lastmod>2026-07-27T21:40:17.441Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_wavelength_activity1</loc>
<lastmod>2026-07-27T21:40:16.539Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson09_activity3</loc>
<lastmod>2026-07-27T21:40:15.830Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson08_activity1</loc>
<lastmod>2026-07-27T21:40:15.298Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_ourbodies_lesson02_activity4</loc>
<lastmod>2026-07-27T21:40:14.728Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_ohm2_act_joy</loc>
<lastmod>2026-07-27T21:40:13.821Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_heat_lesson1_activity2</loc>
<lastmod>2026-07-27T21:40:13.218Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_skeletal_system_activity1</loc>
<lastmod>2026-07-27T21:40:12.682Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_pveff_lesson03_activity1</loc>
<lastmod>2026-07-27T21:40:12.136Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson09_activity1</loc>
<lastmod>2026-07-27T21:40:11.562Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_hp_activity_motion</loc>
<lastmod>2026-07-27T21:40:11.034Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_housing_lesson04_activity2</loc>
<lastmod>2026-07-27T21:40:08.530Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson08_activity1</loc>
<lastmod>2026-07-27T21:40:07.885Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_energy_lesson02_activity1</loc>
<lastmod>2026-07-27T21:40:07.300Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_lesson3_activity2_tg</loc>
<lastmod>2026-07-27T21:40:06.235Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_membrane_activity2</loc>
<lastmod>2026-07-27T21:40:05.666Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson04_activity1</loc>
<lastmod>2026-07-27T21:40:05.112Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_crystals_lesson01_activity2</loc>
<lastmod>2026-07-27T21:40:04.584Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson01_activity3</loc>
<lastmod>2026-07-27T21:40:04.011Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson05_activity1</loc>
<lastmod>2026-07-27T21:40:03.453Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson07_activity1</loc>
<lastmod>2026-07-27T21:40:02.873Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_concentrate_activity1</loc>
<lastmod>2026-07-27T21:40:02.445Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson05_activity2</loc>
<lastmod>2026-07-27T21:40:01.777Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_convshoes_lesson01_activity2</loc>
<lastmod>2026-07-27T21:40:00.825Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ohm1_act_joy</loc>
<lastmod>2026-07-27T21:40:00.428Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson05_activity2</loc>
<lastmod>2026-07-27T21:39:59.387Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson03_activity3</loc>
<lastmod>2026-07-27T21:39:58.803Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson04_activity2</loc>
<lastmod>2026-07-27T21:39:58.213Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson03_activity3</loc>
<lastmod>2026-07-27T21:39:57.653Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst_natfreq_activity1</loc>
<lastmod>2026-07-27T21:39:57.205Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson09_activity2</loc>
<lastmod>2026-07-27T21:39:56.632Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson08_activity1</loc>
<lastmod>2026-07-27T21:39:56.034Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson04_activity2</loc>
<lastmod>2026-07-27T21:39:55.480Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson07_activity2</loc>
<lastmod>2026-07-27T21:39:54.426Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_dams_lesson06_activity1</loc>
<lastmod>2026-07-27T21:39:53.881Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson02_activity1</loc>
<lastmod>2026-07-27T21:39:53.296Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_brid_lesson03_activity1</loc>
<lastmod>2026-07-27T21:39:51.790Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson07_activity1</loc>
<lastmod>2026-07-27T21:39:51.211Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_cells_lesson03_activity1</loc>
<lastmod>2026-07-27T21:39:50.091Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_physical_computing_activity1</loc>
<lastmod>2026-07-27T21:39:49.188Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_amazon_lesson1_activity1_tg</loc>
<lastmod>2026-07-27T21:39:47.233Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson09_activity2</loc>
<lastmod>2026-07-27T21:39:45.236Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson04_activity4</loc>
<lastmod>2026-07-27T21:39:44.622Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson06_activity1</loc>
<lastmod>2026-07-27T21:39:43.988Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_amazon_lesson7_activity1_tg</loc>
<lastmod>2026-07-27T21:39:43.443Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_evolution_mary_act</loc>
<lastmod>2026-07-27T21:39:42.962Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson09_activity1</loc>
<lastmod>2026-07-27T21:39:42.354Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson07_activity1</loc>
<lastmod>2026-07-27T21:39:41.266Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson08_activity1</loc>
<lastmod>2026-07-27T21:39:40.674Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson01_activity1</loc>
<lastmod>2026-07-27T21:39:40.100Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/glue_joy_act</loc>
<lastmod>2026-07-27T21:39:39.537Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson08_activity1</loc>
<lastmod>2026-07-27T21:39:38.981Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_bio_lesson04_activity1</loc>
<lastmod>2026-07-27T21:39:38.413Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson10_activity1</loc>
<lastmod>2026-07-27T21:39:37.845Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_nano_lesson01_activity1</loc>
<lastmod>2026-07-27T21:39:37.307Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mars_lesson03_activity2</loc>
<lastmod>2026-07-27T21:39:36.604Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_membrane_activity5</loc>
<lastmod>2026-07-27T21:39:35.055Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_electrons_activity1</loc>
<lastmod>2026-07-27T21:39:34.490Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/ced-creative-engineering-design-unit</loc>
<lastmod>2026-07-27T21:24:36.202Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/umo-2938-neural-engineering-unit</loc>
<lastmod>2026-07-27T21:24:35.771Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/umo-2952-brain-learning-process-unit</loc>
<lastmod>2026-07-27T21:24:35.393Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-forces-friction-unit</loc>
<lastmod>2026-07-27T21:24:29.960Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-forces-stress-strain-unit</loc>
<lastmod>2026-07-27T21:24:29.521Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-forces-mass-momentum-unit</loc>
<lastmod>2026-07-27T21:24:29.081Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-forces-weight-gravity-unit</loc>
<lastmod>2026-07-27T21:24:28.663Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-motion-kinetic-potential-energy-unit</loc>
<lastmod>2026-07-27T21:24:28.219Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-motion-newton-laws-unit</loc>
<lastmod>2026-07-27T21:24:27.760Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-work-force-energy-power-unit</loc>
<lastmod>2026-07-27T21:24:26.869Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-conservation-efficiency-unit</loc>
<lastmod>2026-07-27T21:24:27.299Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-use-systems-unit</loc>
<lastmod>2026-07-27T21:24:26.412Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-nonrenewable-oil-unit</loc>
<lastmod>2026-07-27T21:24:26.003Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-renewable-solar-unit</loc>
<lastmod>2026-07-27T21:24:25.556Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-renewable-water-unit</loc>
<lastmod>2026-07-27T21:24:25.140Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-renewable-wind-unit</loc>
<lastmod>2026-07-27T21:24:24.688Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-electrical-unit</loc>
<lastmod>2026-07-27T21:24:24.272Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-sound-unit</loc>
<lastmod>2026-07-27T21:24:23.860Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-thermal-unit</loc>
<lastmod>2026-07-27T21:24:23.454Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-conservation-unit</loc>
<lastmod>2026-07-27T21:24:23.027Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_environ_issues_unit</loc>
<lastmod>2026-07-27T21:24:22.620Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_environ_waste_recycling_unit</loc>
<lastmod>2026-07-27T21:24:22.218Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_environ_resources_unit</loc>
<lastmod>2026-07-27T21:24:21.827Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_environ_water_pollution_unit</loc>
<lastmod>2026-07-27T21:24:21.302Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-air-greenhouse-effect-unit</loc>
<lastmod>2026-07-27T21:24:20.849Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_air_pollution_solutions_unit</loc>
<lastmod>2026-07-27T21:24:20.362Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_air_acid_rain_unit</loc>
<lastmod>2026-07-27T21:24:19.861Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_air_pollution_unit</loc>
<lastmod>2026-07-27T21:24:19.425Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_water_cycle_unit</loc>
<lastmod>2026-07-27T21:24:18.525Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_earth_surface_unit</loc>
<lastmod>2026-07-27T21:24:18.113Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/ucd_fieldday_unit</loc>
<lastmod>2026-07-27T21:58:45.540Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_airquality_unit</loc>
<lastmod>2026-07-27T21:58:43.713Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_service_unit</loc>
<lastmod>2026-07-27T21:58:45.011Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_electricity_curricularunit</loc>
<lastmod>2026-07-27T21:58:44.320Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/van_membrane_unit</loc>
<lastmod>2026-07-27T21:58:43.013Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/van_latex_curricularunit</loc>
<lastmod>2026-07-27T21:58:42.444Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/van_biomimicry_curricularunit</loc>
<lastmod>2026-07-27T21:58:41.828Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/van_skeletal_system_curricularunit</loc>
<lastmod>2026-07-27T21:58:41.274Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/van_robotic_vision_curricularunit</loc>
<lastmod>2026-07-27T21:58:40.669Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/van_floppy_unitdoc</loc>
<lastmod>2026-07-27T21:58:40.135Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/van_nanoparticles_curricularunit</loc>
<lastmod>2026-07-27T21:58:39.498Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/csm_asteroid_tg</loc>
<lastmod>2026-07-27T21:58:38.922Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_creative_curricularunit</loc>
<lastmod>2026-07-27T21:58:38.286Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_intro_curricularunit</loc>
<lastmod>2026-07-27T21:58:37.622Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/wst_environmental_unit</loc>
<lastmod>2026-07-27T21:58:37.010Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/wpi_fundamentalforces_unit</loc>
<lastmod>2026-07-27T21:58:36.406Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/wpi_empathy_curricularunit</loc>
<lastmod>2026-07-27T21:58:35.872Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/van_oddsofcancer_curricularunit</loc>
<lastmod>2026-07-27T21:58:35.246Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/van_linear_eqn_currunit</loc>
<lastmod>2026-07-27T21:58:34.615Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/van_hybrid_design_curricularunit</loc>
<lastmod>2026-07-27T21:58:33.999Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/van_heartvalves_unit</loc>
<lastmod>2026-07-27T21:58:33.398Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/van_feelbetter_curricularunit</loc>
<lastmod>2026-07-27T21:58:32.851Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/van_cancer_curricularunit</loc>
<lastmod>2026-07-27T21:58:32.266Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/van_cleanupmess_unit</loc>
<lastmod>2026-07-27T21:58:31.662Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/usf_stormwater_unit</loc>
<lastmod>2026-07-27T21:58:31.120Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/uoh_fluidmechanics_unit</loc>
<lastmod>2026-07-27T21:58:30.533Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/uoh_dna_curricularunit</loc>
<lastmod>2026-07-27T21:58:29.988Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/uno_accelerometer_unit</loc>
<lastmod>2026-07-27T21:58:29.444Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/umo_sensorswork_unit</loc>
<lastmod>2026-07-27T21:58:28.761Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/umo_ourbodies_unit</loc>
<lastmod>2026-07-27T21:58:28.166Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/umo_computerprogram_unit</loc>
<lastmod>2026-07-27T21:58:27.553Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/umo_challenges_unit</loc>
<lastmod>2026-07-27T21:58:26.984Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/duk_surfacetensionunit</loc>
<lastmod>2026-07-27T21:58:26.313Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/duk_solar_tech_unit</loc>
<lastmod>2026-07-27T21:58:25.743Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/duk_marine_musc_unit</loc>
<lastmod>2026-07-27T21:58:25.193Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/duk_heattransfer_smary_unit</loc>
<lastmod>2026-07-27T21:58:24.713Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/duk_friction_smary_unit</loc>
<lastmod>2026-07-27T21:58:24.142Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/duk_bmedevices_tech_unit</loc>
<lastmod>2026-07-27T21:58:23.547Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_weather_curricularunit</loc>
<lastmod>2026-07-27T21:58:22.986Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_space8_curricularunit</loc>
<lastmod>2026-07-27T21:58:22.398Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_soundandlight_curricularunit</loc>
<lastmod>2026-07-27T21:58:21.774Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_simp_machines_curricularunit</loc>
<lastmod>2026-07-27T21:58:21.174Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_rockets_curricularunit</loc>
<lastmod>2026-07-27T21:58:20.559Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_rock_curricularunit</loc>
<lastmod>2026-07-27T21:58:19.936Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_navigation_curricularunit</loc>
<lastmod>2026-07-27T21:58:19.288Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_natdis_curricularunit</loc>
<lastmod>2026-07-27T21:58:18.602Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_mars_curricularunit</loc>
<lastmod>2026-07-27T21:58:17.932Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_lifescience_curricularunit</loc>
<lastmod>2026-07-27T21:58:17.328Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_housing_curricularunit</loc>
<lastmod>2026-07-27T21:58:16.711Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_enveng_curricularunit</loc>
<lastmod>2026-07-27T21:58:16.060Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_brid_curricularunit</loc>
<lastmod>2026-07-27T21:58:15.441Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_biomed_curricularunit</loc>
<lastmod>2026-07-27T21:58:14.714Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_dams</loc>
<lastmod>2026-07-27T21:58:14.102Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/duk_bubble_mary_unit</loc>
<lastmod>2026-07-27T21:58:13.522Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_human_curricularunit</loc>
<lastmod>2026-07-27T21:58:12.867Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/van_troll_curricularunit</loc>
<lastmod>2026-07-27T21:58:12.245Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_cells_curricularunit</loc>
<lastmod>2026-07-27T21:58:11.654Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/umo_robotsandhumans</loc>
<lastmod>2026-07-27T21:58:11.059Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/uoh_dig_mapping_curricularunit</loc>
<lastmod>2026-07-27T21:58:10.434Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/uoh_nano_unit</loc>
<lastmod>2026-07-27T21:58:09.896Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_surg_unit</loc>
<lastmod>2026-07-27T21:58:09.219Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/van_mri_curr</loc>
<lastmod>2026-07-27T21:58:08.516Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/uoh_hp_unit</loc>
<lastmod>2026-07-27T21:58:07.947Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/ucd_energy_unit</loc>
<lastmod>2026-07-27T21:58:07.326Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_china_unit</loc>
<lastmod>2026-07-27T21:58:06.765Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/duk_density_mary_unit</loc>
<lastmod>2026-07-27T21:58:06.183Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_simple_curricularunit</loc>
<lastmod>2026-07-27T21:58:05.548Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_airplanes_curricularunit</loc>
<lastmod>2026-07-27T21:58:04.869Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_solar_curricularunit</loc>
<lastmod>2026-07-27T21:58:04.198Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/ucd_newton_unit</loc>
<lastmod>2026-07-27T21:58:03.555Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_bio_curricularunit</loc>
<lastmod>2026-07-27T21:58:02.971Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/csm_amazon_tg</loc>
<lastmod>2026-07-27T21:58:02.345Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_mix_curricularunit</loc>
<lastmod>2026-07-27T21:58:01.811Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_spect_curricular_unit</loc>
<lastmod>2026-07-27T21:58:01.119Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/van_bmd_curricularunit</loc>
<lastmod>2026-07-27T21:58:00.536Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/duk_bycatchunit_musc_unit</loc>
<lastmod>2026-07-27T21:58:00.016Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/duk_tower_tech_unit</loc>
<lastmod>2026-07-27T21:57:59.488Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/duk_cellresp_mary_unit</loc>
<lastmod>2026-07-27T21:57:58.902Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/clem_waves_unit</loc>
<lastmod>2026-07-27T21:57:58.324Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_sound_curricularunit</loc>
<lastmod>2026-07-27T21:22:58.079Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_pveff_curricularunit</loc>
<lastmod>2026-07-27T21:57:57.690Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/jhu_cnetworks_unit</loc>
<lastmod>2026-07-27T21:57:57.112Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/popular-topics/newton-s-laws</loc>
<lastmod>2026-07-27T21:09:20.138Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/popular-topics/pulleys</loc>
<lastmod>2026-07-27T21:09:18.332Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/popular-topics/simple-machines</loc>
<lastmod>2026-07-27T21:09:17.080Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/popular-topics/engineering-design-process</loc>
<lastmod>2026-07-27T21:09:16.004Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/popular-topics/data-analysis-and-probability</loc>
<lastmod>2026-07-27T21:09:15.325Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/popular-topics/natural-disasters</loc>
<lastmod>2026-07-27T21:09:13.141Z</lastmod>
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