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<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson01</loc>
<lastmod>2026-08-11T19:26:55.033Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_simple_lesson05</loc>
<lastmod>2026-08-17T01:35:52.604Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_brid_lesson02</loc>
<lastmod>2026-08-17T01:35:51.725Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_rock_lesson04</loc>
<lastmod>2026-08-17T01:35:50.856Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mix_lesson2</loc>
<lastmod>2026-08-11T19:26:51.630Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_human_lesson07</loc>
<lastmod>2026-08-11T19:26:50.806Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_natdis_lesson04</loc>
<lastmod>2026-08-11T19:26:49.922Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_footprint_lesson1</loc>
<lastmod>2026-08-17T01:35:50.153Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_simple_lesson01</loc>
<lastmod>2026-08-17T01:35:49.257Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mix_lesson1</loc>
<lastmod>2026-08-11T19:26:47.467Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_weather_lesson06</loc>
<lastmod>2026-08-17T01:35:48.319Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_human_lesson04</loc>
<lastmod>2026-08-11T19:26:45.831Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_earth_lesson1</loc>
<lastmod>2026-08-11T19:26:45.060Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_dams_lesson01</loc>
<lastmod>2026-08-11T19:26:44.198Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_human_lesson02</loc>
<lastmod>2026-08-11T19:26:43.349Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mix_lesson3</loc>
<lastmod>2026-08-11T19:26:42.446Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_simp_machines_lesson01</loc>
<lastmod>2026-08-11T19:26:41.129Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_sensorswork_lesson03</loc>
<lastmod>2026-08-17T01:35:46.899Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_biomimicry_less1</loc>
<lastmod>2026-08-11T19:26:39.221Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_oddsofcancer_lesson01</loc>
<lastmod>2026-08-17T01:35:46.152Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_robotic_vision_less3</loc>
<lastmod>2026-08-17T01:35:45.150Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/clem_waves_lesson04</loc>
<lastmod>2026-08-17T01:35:44.451Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson05</loc>
<lastmod>2026-08-11T19:26:36.578Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_solar_lesson04</loc>
<lastmod>2026-08-17T01:35:43.618Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/ucd_newton_lesson03</loc>
<lastmod>2026-08-17T01:35:42.528Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson09</loc>
<lastmod>2026-08-11T19:26:33.462Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_electricity_lesson05</loc>
<lastmod>2026-08-11T19:26:32.289Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/clem_waves_lesson02</loc>
<lastmod>2026-08-17T01:35:41.803Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy2_lesson01</loc>
<lastmod>2026-08-17T01:35:41.089Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_bycatchunit_musc_less</loc>
<lastmod>2026-08-11T19:26:31.242Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_intro_lesson03</loc>
<lastmod>2026-08-11T19:26:30.327Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/wpi_lesson_1</loc>
<lastmod>2026-08-11T19:26:29.532Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mars_lesson02</loc>
<lastmod>2026-08-11T19:26:28.543Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cla_lesson6_efficiency</loc>
<lastmod>2026-08-11T19:26:27.281Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cla_lesson3_energy_basics</loc>
<lastmod>2026-08-11T19:26:26.090Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cla_lesson4_forms_states_conversions</loc>
<lastmod>2026-08-11T19:26:25.043Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cla_lesson5_energy_sources_systems</loc>
<lastmod>2026-08-11T19:26:23.858Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cla_lesson1_energyproblem</loc>
<lastmod>2026-08-11T19:26:22.713Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cla_lesson2_problem_solving</loc>
<lastmod>2026-08-11T19:26:21.311Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_solar_lesson03</loc>
<lastmod>2026-08-17T01:35:40.297Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_solar_lesson07</loc>
<lastmod>2026-08-17T01:35:39.356Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_solar_lesson06</loc>
<lastmod>2026-08-11T19:26:18.613Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy_lesson03</loc>
<lastmod>2026-08-11T19:26:17.676Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_dig_mapping_less3</loc>
<lastmod>2026-08-11T19:26:16.512Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_boxes_mary_less</loc>
<lastmod>2026-08-17T01:35:38.604Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_natdis_lesson05</loc>
<lastmod>2026-08-17T01:35:37.628Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_rock_lesson02</loc>
<lastmod>2026-08-17T01:35:36.629Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/wst_environmental_lesson01</loc>
<lastmod>2026-08-17T01:35:35.756Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_hp_lesson_force</loc>
<lastmod>2026-08-11T19:26:11.916Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_antimatter_lesson</loc>
<lastmod>2026-08-11T19:26:11.109Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_nano_lesson01</loc>
<lastmod>2026-08-17T01:35:34.919Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_rocket_lesson01</loc>
<lastmod>2026-08-17T01:35:34.222Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_ourbodies_lesson02</loc>
<lastmod>2026-08-17T01:35:33.266Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_consenergy_rde_less</loc>
<lastmod>2026-08-11T19:26:07.587Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_robotsandhumans_less2</loc>
<lastmod>2026-08-17T02:18:15.895Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/usf_surfactants_les1</loc>
<lastmod>2026-08-17T01:35:31.331Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_housing_lesson01</loc>
<lastmod>2026-08-11T19:26:04.811Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson09</loc>
<lastmod>2026-08-11T19:26:03.664Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson04</loc>
<lastmod>2026-08-11T19:26:02.837Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_earth_lesson5</loc>
<lastmod>2026-08-11T19:26:01.855Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson06</loc>
<lastmod>2026-08-11T19:26:00.909Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_robotsandhumans_less4</loc>
<lastmod>2026-08-17T01:35:30.033Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_weather_lesson05</loc>
<lastmod>2026-08-17T01:35:29.157Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_weather_lesson01</loc>
<lastmod>2026-08-11T19:25:58.231Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_genetics_mary_less</loc>
<lastmod>2026-08-11T19:25:57.545Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_troll_lesson02</loc>
<lastmod>2026-08-17T01:35:28.319Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson02</loc>
<lastmod>2026-08-11T19:25:55.507Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_biomimicry_less4</loc>
<lastmod>2026-08-17T01:35:27.149Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_surfacetensionunit_less4</loc>
<lastmod>2026-08-11T19:25:53.541Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_hp_lesson_square</loc>
<lastmod>2026-08-17T01:35:26.307Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_catapult_lesson01</loc>
<lastmod>2026-08-17T01:35:25.751Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_hybrid_design_less2</loc>
<lastmod>2026-08-17T01:35:24.747Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson01</loc>
<lastmod>2026-08-11T19:25:50.895Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_tower_tech_less</loc>
<lastmod>2026-08-11T19:25:49.848Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_natdis_lesson07</loc>
<lastmod>2026-08-17T01:35:23.665Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_seismicw_lesson01</loc>
<lastmod>2026-08-17T01:35:22.959Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_magic_lesson01</loc>
<lastmod>2026-08-17T01:35:22.251Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_solaroven_tech_less</loc>
<lastmod>2026-08-11T19:25:46.701Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_crystals_lesson01</loc>
<lastmod>2026-08-17T01:35:21.546Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson07</loc>
<lastmod>2026-08-17T01:35:20.759Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_weather_lesson04</loc>
<lastmod>2026-08-11T19:25:44.062Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_enveng_lesson06</loc>
<lastmod>2026-08-17T01:35:19.626Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_brid_lesson01</loc>
<lastmod>2026-08-17T01:35:18.658Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_biomed_lesson07</loc>
<lastmod>2026-08-17T01:35:17.591Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_carbon_lesson01</loc>
<lastmod>2026-08-17T01:35:16.851Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson05</loc>
<lastmod>2026-08-11T19:25:39.360Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson09</loc>
<lastmod>2026-08-11T19:25:38.524Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_genetic_lesson01</loc>
<lastmod>2026-08-17T01:35:16.146Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_heattransfer_smary_less</loc>
<lastmod>2026-08-11T19:25:37.117Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/ucd_electricity_lesson01</loc>
<lastmod>2026-08-17T01:35:15.441Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_housing_lesson05</loc>
<lastmod>2026-08-11T19:25:35.652Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_surfacetensionunit_less3</loc>
<lastmod>2026-08-06T15:39:13.870Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_intro_lesson01</loc>
<lastmod>2026-08-17T01:35:14.118Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy_lesson01</loc>
<lastmod>2026-08-11T19:25:33.390Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_robotic_vision_less1</loc>
<lastmod>2026-08-11T19:25:32.491Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_enveng_lesson05</loc>
<lastmod>2026-08-11T19:25:31.480Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_detdrawings_lesson01</loc>
<lastmod>2026-08-17T01:35:13.204Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson10</loc>
<lastmod>2026-08-17T01:35:12.375Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_lesson1_crashscene_tg</loc>
<lastmod>2026-08-11T19:25:28.817Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/wpi_bones_lesson01</loc>
<lastmod>2026-08-17T01:35:11.376Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_lifescience_lesson03</loc>
<lastmod>2026-08-11T19:25:27.209Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson03</loc>
<lastmod>2026-08-11T19:25:26.315Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson09</loc>
<lastmod>2026-08-17T01:35:10.410Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_human_lesson06</loc>
<lastmod>2026-08-11T19:25:24.279Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_earth_lesson6</loc>
<lastmod>2026-08-11T19:25:23.314Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_brid_lesson03</loc>
<lastmod>2026-08-11T19:25:22.471Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_intro_lesson04</loc>
<lastmod>2026-08-17T01:35:09.326Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/ucd_newton_lesson02</loc>
<lastmod>2026-08-17T01:35:08.476Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson03</loc>
<lastmod>2026-08-17T01:35:07.395Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/ucla_lava_lesson01</loc>
<lastmod>2026-08-11T19:25:18.880Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_natdis_lesson08</loc>
<lastmod>2026-08-11T19:25:18.027Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_art_lesson01</loc>
<lastmod>2026-08-11T19:25:17.034Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_soundandlight_lesson7</loc>
<lastmod>2026-08-11T19:25:16.031Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_lifescience_lesson04</loc>
<lastmod>2026-08-11T19:25:15.142Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_cleanupmess_less4</loc>
<lastmod>2026-08-17T01:35:06.167Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_lifescience_lesson02</loc>
<lastmod>2026-08-11T19:25:13.385Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_solarenergy_lesson01</loc>
<lastmod>2026-08-17T01:35:04.917Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_enveng_lesson02</loc>
<lastmod>2026-08-11T19:25:11.393Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_matlsci_lesson01</loc>
<lastmod>2026-08-17T01:35:04.212Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_convshoes_lesson01</loc>
<lastmod>2026-08-17T01:35:03.473Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/ucd_energy_lesson01</loc>
<lastmod>2026-08-17T01:35:02.533Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_linear_eqn_less4</loc>
<lastmod>2026-08-17T01:35:01.629Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy2_lesson06</loc>
<lastmod>2026-08-11T19:25:07.014Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_bio_lesson06</loc>
<lastmod>2026-08-17T01:35:00.776Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy2_lesson02</loc>
<lastmod>2026-08-17T01:34:59.877Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_space8_lesson01</loc>
<lastmod>2026-08-11T19:25:04.019Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy2_lesson04</loc>
<lastmod>2026-08-11T19:25:03.103Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_friction_smary_less2</loc>
<lastmod>2026-08-11T19:25:01.644Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_china_lesson02</loc>
<lastmod>2026-08-17T01:34:58.805Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_rock_lesson03</loc>
<lastmod>2026-08-11T19:24:59.769Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_robotsandhumans_less1</loc>
<lastmod>2026-08-17T01:34:57.888Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy2_lesson03</loc>
<lastmod>2026-08-17T01:34:57.168Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_bio_lesson04</loc>
<lastmod>2026-08-11T19:24:58.183Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_lunar_muscle_less</loc>
<lastmod>2026-08-11T19:24:57.445Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_natdis_lesson06</loc>
<lastmod>2026-08-11T19:24:56.644Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_navigation_lesson04</loc>
<lastmod>2026-08-11T19:24:55.721Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_nano_lesson02</loc>
<lastmod>2026-08-11T19:24:54.541Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_biomed_lesson02</loc>
<lastmod>2026-08-17T01:34:56.277Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_density_mary_less</loc>
<lastmod>2026-08-11T19:24:52.601Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_electricity_lesson01</loc>
<lastmod>2026-08-11T19:24:51.816Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_biomed_lesson04</loc>
<lastmod>2026-08-11T19:24:50.830Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_sep_mixtures_less1</loc>
<lastmod>2026-08-17T01:34:55.502Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_ourbodies_lesson01</loc>
<lastmod>2026-08-17T01:34:54.456Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_energymusic_mem_less</loc>
<lastmod>2026-08-11T19:24:48.389Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_marine_musc_less2</loc>
<lastmod>2026-08-11T19:24:47.497Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/pur_fluidpower_less1</loc>
<lastmod>2026-08-17T01:34:53.739Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/clem_waves_lesson05</loc>
<lastmod>2026-08-17T01:34:52.898Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_rock_lesson05</loc>
<lastmod>2026-08-11T19:24:45.085Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mars_lesson05</loc>
<lastmod>2026-08-11T19:24:43.960Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_brid_lesson05</loc>
<lastmod>2026-08-17T01:34:52.020Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_challenges_lesson02</loc>
<lastmod>2026-08-17T01:34:51.100Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_surgicaldevices_tech_less</loc>
<lastmod>2026-08-11T19:24:41.121Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_bio_lesson01</loc>
<lastmod>2026-08-17T01:34:50.051Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mars_lesson01</loc>
<lastmod>2026-08-11T19:24:39.359Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson08</loc>
<lastmod>2026-08-11T19:24:38.368Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_solarcar_tech_less</loc>
<lastmod>2026-08-17T01:34:49.231Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mars_lesson03</loc>
<lastmod>2026-08-11T19:24:36.615Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_desal_lesson01</loc>
<lastmod>2026-08-17T01:34:48.490Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_space8_lesson03</loc>
<lastmod>2026-08-17T01:34:47.542Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson03</loc>
<lastmod>2026-08-17T01:34:46.682Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_bernoulli_lesson01</loc>
<lastmod>2026-08-17T01:34:45.893Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/usf_stormwater_lesson02</loc>
<lastmod>2026-08-17T01:34:45.002Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_8</loc>
<lastmod>2026-08-17T01:34:43.723Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_10</loc>
<lastmod>2026-08-17T01:34:42.810Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_9</loc>
<lastmod>2026-08-17T01:34:41.979Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_simp_machines_lesson02</loc>
<lastmod>2026-08-11T19:24:29.896Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mars_lesson04</loc>
<lastmod>2026-08-11T19:24:28.586Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mars_lesson06</loc>
<lastmod>2026-08-11T19:24:27.577Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson07</loc>
<lastmod>2026-08-17T01:34:40.738Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_virus_mary_less</loc>
<lastmod>2026-08-17T01:34:39.946Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_decomposers_mary_less</loc>
<lastmod>2026-08-11T19:24:25.007Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_computerprogram_lesson02</loc>
<lastmod>2026-08-17T01:34:38.950Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_computerprogram_lesson01</loc>
<lastmod>2026-08-17T01:34:37.999Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_computerprogram_lesson03</loc>
<lastmod>2026-08-17T01:34:36.894Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_junit_lesson01</loc>
<lastmod>2026-08-17T01:34:36.187Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_marine_musc_less</loc>
<lastmod>2026-08-11T19:24:20.322Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_heartvalve_tech_less</loc>
<lastmod>2026-08-17T01:34:35.372Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/mis_pharma_lesson01</loc>
<lastmod>2026-08-17T01:34:34.694Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_bubble_mary_less</loc>
<lastmod>2026-08-11T19:24:18.172Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_powergen_tech_less</loc>
<lastmod>2026-08-11T19:24:17.435Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/mis_biosensors_lesson01</loc>
<lastmod>2026-08-17T01:34:33.967Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_feelbetter_lesson01</loc>
<lastmod>2026-08-11T19:24:15.908Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_feelbetter_lesson02</loc>
<lastmod>2026-08-17T01:34:33.091Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_biomimicry_less2</loc>
<lastmod>2026-08-17T01:34:32.045Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_polymer_lesson01</loc>
<lastmod>2026-08-17T01:34:31.352Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_waterqtnew_lesson01</loc>
<lastmod>2026-08-17T01:34:30.605Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_simp_machines_lesson05</loc>
<lastmod>2026-08-11T19:24:11.819Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_pveff_lesson04</loc>
<lastmod>2026-08-17T01:34:29.673Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_enveng_lesson01</loc>
<lastmod>2026-08-11T19:24:10.256Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_housing_lesson03</loc>
<lastmod>2026-08-11T19:24:09.271Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/usf_flocculant_lesson01</loc>
<lastmod>2026-08-17T01:34:28.952Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_enveng_lesson07</loc>
<lastmod>2026-08-11T19:24:07.392Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_heartvalves_lesson02</loc>
<lastmod>2026-08-17T01:34:27.924Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_heartvalves_lesson01</loc>
<lastmod>2026-08-17T01:34:27.221Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_graphtheory_lesson01</loc>
<lastmod>2026-08-17T01:34:26.503Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_soundandlight_lesson8</loc>
<lastmod>2026-08-11T19:24:04.068Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_eenergy_mem_less</loc>
<lastmod>2026-08-11T19:24:03.347Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_biomimicry_less3</loc>
<lastmod>2026-08-11T19:24:02.604Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_dams_lesson07</loc>
<lastmod>2026-08-17T01:34:25.537Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_dams_lesson02</loc>
<lastmod>2026-08-17T01:34:24.687Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_rockets_lesson01</loc>
<lastmod>2026-08-17T01:34:23.819Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_3</loc>
<lastmod>2026-08-11T19:23:59.037Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_piezo_lesson01</loc>
<lastmod>2026-08-17T01:34:23.122Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_plainsight_lesson01</loc>
<lastmod>2026-08-17T01:34:22.438Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_fluidmechanics_lesson02</loc>
<lastmod>2026-08-17T01:34:21.674Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/jhu_cnetworks_lesson02</loc>
<lastmod>2026-08-11T19:23:55.915Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_robotic_vision_less2</loc>
<lastmod>2026-08-11T19:23:54.965Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_circuit_lesson01</loc>
<lastmod>2026-08-17T01:34:20.961Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_6</loc>
<lastmod>2026-08-11T19:23:53.298Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/jhu_cnetworks_lesson01</loc>
<lastmod>2026-08-11T19:23:52.512Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_2</loc>
<lastmod>2026-08-11T19:23:51.542Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_connection_lesson01</loc>
<lastmod>2026-08-17T01:34:20.234Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/torque_sue</loc>
<lastmod>2026-08-11T19:23:49.967Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_dna_lesson01</loc>
<lastmod>2026-08-11T19:23:49.220Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/tension</loc>
<lastmod>2026-08-11T19:23:48.259Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/usf_microbes_lesson01</loc>
<lastmod>2026-08-11T19:23:47.542Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_5</loc>
<lastmod>2026-08-17T01:34:18.993Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_4</loc>
<lastmod>2026-08-17T01:34:18.120Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_rooftop_lesson01</loc>
<lastmod>2026-08-17T01:34:17.553Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_enveng_lesson04</loc>
<lastmod>2026-08-11T19:23:45.407Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_dams_lesson08</loc>
<lastmod>2026-08-11T19:23:44.349Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_dna_lesson02</loc>
<lastmod>2026-08-11T19:23:43.576Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_heartvalves_lesson01</loc>
<lastmod>2026-08-17T01:34:16.693Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_7</loc>
<lastmod>2026-08-17T01:34:15.728Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/gat_visual_art_lesson01</loc>
<lastmod>2026-08-17T01:34:15.013Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_housing_lesson04</loc>
<lastmod>2026-08-11T19:23:40.500Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson05</loc>
<lastmod>2026-08-17T01:34:14.117Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_china_lesson01</loc>
<lastmod>2026-08-17T01:34:12.999Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_oddsofcancer_lesson02</loc>
<lastmod>2026-08-17T01:34:12.046Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_walk_lesson01</loc>
<lastmod>2026-08-11T19:23:36.633Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_linear_eqn_less2</loc>
<lastmod>2026-08-17T01:34:11.088Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_lighting_lesson01</loc>
<lastmod>2026-08-17T01:34:10.414Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_linear_eqn_less3</loc>
<lastmod>2026-08-17T01:34:09.536Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_weather_lesson03</loc>
<lastmod>2026-08-11T19:23:34.206Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_china_lesson03</loc>
<lastmod>2026-08-17T01:34:08.781Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_linear_eqn_less5</loc>
<lastmod>2026-08-17T01:34:07.792Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/mis_eyes_lesson01</loc>
<lastmod>2026-08-17T01:34:06.999Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_dig_mapping_less1</loc>
<lastmod>2026-08-06T15:37:24.005Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_dig_mapping_less2</loc>
<lastmod>2026-08-11T19:23:30.417Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/usf_biorecycling_lesson01</loc>
<lastmod>2026-08-17T01:34:06.257Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_weather_lesson02</loc>
<lastmod>2026-08-11T19:23:28.573Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_cells_lesson02</loc>
<lastmod>2026-08-11T19:23:27.813Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_accelerometer_lesson02</loc>
<lastmod>2026-08-17T01:34:05.131Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_cancer_lesson3</loc>
<lastmod>2026-08-11T19:23:25.813Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_landfill_music_less</loc>
<lastmod>2026-08-11T19:23:25.036Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_appinventor_lesson01</loc>
<lastmod>2026-08-17T01:34:04.273Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_oddsofcancer_lesson04</loc>
<lastmod>2026-08-17T01:34:03.238Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_troll_lesson01</loc>
<lastmod>2026-08-11T19:23:22.322Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_troll_lesson04</loc>
<lastmod>2026-08-17T01:34:02.217Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_python_lesson01</loc>
<lastmod>2026-08-17T01:34:01.452Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_lesson1_flow_rate_experiment</loc>
<lastmod>2026-08-11T19:23:19.876Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_bmd_less1</loc>
<lastmod>2026-08-11T19:23:19.029Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_membrane_lesson1</loc>
<lastmod>2026-08-11T19:23:18.290Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_oddsofcancer_lesson03</loc>
<lastmod>2026-08-11T19:23:17.219Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_perm_usman_less</loc>
<lastmod>2026-08-11T19:23:16.452Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_life_lesson01</loc>
<lastmod>2026-08-11T19:23:15.830Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_swing_lesson01</loc>
<lastmod>2026-08-11T19:23:15.143Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_hybrid_design_less4</loc>
<lastmod>2026-08-11T19:23:14.082Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_skeletal_system_less1</loc>
<lastmod>2026-08-11T19:23:13.262Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson02</loc>
<lastmod>2026-08-17T01:34:00.334Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_simp_machines_lesson04</loc>
<lastmod>2026-08-11T19:23:11.089Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_cancer_lesson2</loc>
<lastmod>2026-08-17T01:33:59.225Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_hybrid_design_less1</loc>
<lastmod>2026-08-06T15:37:05.496Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_handheld_lesson01</loc>
<lastmod>2026-08-17T01:33:58.533Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson03</loc>
<lastmod>2026-08-11T19:23:08.677Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_electricity_lesson04</loc>
<lastmod>2026-08-11T19:23:07.583Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_human_lesson10</loc>
<lastmod>2026-08-11T19:23:06.301Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_sensorswork_lesson05</loc>
<lastmod>2026-08-17T01:33:57.067Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_human_lesson09</loc>
<lastmod>2026-08-11T19:23:03.920Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_human_lesson08</loc>
<lastmod>2026-08-11T19:23:03.121Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_human_lesson05</loc>
<lastmod>2026-08-11T19:23:02.251Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_human_lesson03</loc>
<lastmod>2026-08-11T19:23:01.291Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/usf_maxwell_lesson01</loc>
<lastmod>2026-08-11T19:23:00.525Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_hp_lesson_acids</loc>
<lastmod>2026-08-17T01:33:55.955Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_soundandlight_lesson1</loc>
<lastmod>2026-08-11T19:22:58.709Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_earth_lesson2</loc>
<lastmod>2026-08-11T19:22:57.894Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_earth_lesson3</loc>
<lastmod>2026-08-17T01:33:55.060Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_navigation_lesson10</loc>
<lastmod>2026-08-06T15:36:53.875Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson04</loc>
<lastmod>2026-08-11T19:22:55.652Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy2_lesson09</loc>
<lastmod>2026-08-17T01:33:54.153Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mag_lesson2</loc>
<lastmod>2026-08-11T19:22:53.502Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_surg_lesson01</loc>
<lastmod>2026-08-17T01:33:53.004Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_faucets_lesson01</loc>
<lastmod>2026-08-11T19:22:51.607Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_sensorswork_lesson04</loc>
<lastmod>2026-08-17T01:33:51.866Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson07</loc>
<lastmod>2026-08-11T19:22:49.424Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_bio_lesson03</loc>
<lastmod>2026-08-17T01:33:50.822Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson08</loc>
<lastmod>2026-08-11T19:22:47.306Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_simp_machines_lesson03</loc>
<lastmod>2026-08-11T19:22:46.429Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_pirates_lesson01</loc>
<lastmod>2026-08-17T01:33:50.008Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson06</loc>
<lastmod>2026-08-11T19:22:44.706Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson01</loc>
<lastmod>2026-08-11T19:22:43.789Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_drink_lesson01</loc>
<lastmod>2026-08-17T01:33:49.248Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_dams_lesson04</loc>
<lastmod>2026-08-17T01:33:48.354Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_surfacetensionunit_less1</loc>
<lastmod>2026-08-11T19:22:41.329Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson04</loc>
<lastmod>2026-08-17T01:33:47.433Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_lesson2_supplies_tg</loc>
<lastmod>2026-08-06T15:36:40.009Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_navigation_lesson07</loc>
<lastmod>2026-08-11T19:22:40.494Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_space8_lesson02</loc>
<lastmod>2026-08-11T19:22:39.697Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_lesson3_shelter_tg</loc>
<lastmod>2026-08-11T19:22:38.980Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson10</loc>
<lastmod>2026-08-11T19:22:38.009Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/ucd_heat_lesson01</loc>
<lastmod>2026-08-17T01:33:46.842Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_airplanes_lesson08</loc>
<lastmod>2026-08-11T19:22:36.472Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_robots_less</loc>
<lastmod>2026-08-17T01:33:45.783Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_nanoparticles_lesson01</loc>
<lastmod>2026-08-17T01:33:44.867Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_soundandlight_lesson3</loc>
<lastmod>2026-08-11T19:22:33.515Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_soundandlight_lesson2</loc>
<lastmod>2026-08-11T19:22:32.414Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/usf_stormwater_lesson01</loc>
<lastmod>2026-08-17T01:33:44.043Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson02</loc>
<lastmod>2026-08-17T01:33:43.156Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_body_lesson01</loc>
<lastmod>2026-08-17T01:33:42.278Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_sun_lesson01</loc>
<lastmod>2026-08-17T01:33:41.570Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_lesson5_filterwater_tg</loc>
<lastmod>2026-08-06T15:36:28.958Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_earth_lesson04</loc>
<lastmod>2026-08-11T19:22:28.325Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_skeletal_system_less2</loc>
<lastmod>2026-08-11T19:22:27.057Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_sensorswork_lesson06</loc>
<lastmod>2026-08-17T01:33:40.454Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_navigation_lesson05</loc>
<lastmod>2026-08-11T19:22:24.901Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_cells_lesson01</loc>
<lastmod>2026-08-11T19:22:23.963Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson10</loc>
<lastmod>2026-08-11T19:22:22.833Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_latex_lesson01</loc>
<lastmod>2026-08-06T15:36:23.993Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_troll_lesson03</loc>
<lastmod>2026-08-11T19:22:21.881Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_motion_lesson1</loc>
<lastmod>2026-08-11T19:22:21.244Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_music_choi_less</loc>
<lastmod>2026-08-17T01:33:39.161Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_doyousee_lesson01</loc>
<lastmod>2026-08-17T01:33:38.497Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_lesson6_density_tg</loc>
<lastmod>2026-08-11T19:22:19.005Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uno_doesitwork_lesson01</loc>
<lastmod>2026-08-17T01:33:37.810Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_cleanupmess_less1</loc>
<lastmod>2026-08-17T01:33:36.994Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_nanoparticles_lesson02</loc>
<lastmod>2026-08-17T01:33:35.991Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_soundandlight_lesson5</loc>
<lastmod>2026-08-11T19:22:15.524Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_amradio_tech_less</loc>
<lastmod>2026-08-11T19:22:14.895Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_soundandlight_lesson4</loc>
<lastmod>2026-08-17T01:33:34.846Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_soundandlight_lesson6</loc>
<lastmod>2026-08-11T19:22:13.113Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_navigation_lesson08</loc>
<lastmod>2026-08-11T19:22:12.186Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_foodiron_music_less</loc>
<lastmod>2026-08-11T19:22:11.344Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mag_lesson1</loc>
<lastmod>2026-08-17T01:33:34.150Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/mis_neuron_lesson01</loc>
<lastmod>2026-08-17T01:33:33.455Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_navigation_lesson06</loc>
<lastmod>2026-08-11T19:22:08.910Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_gps_lesson01</loc>
<lastmod>2026-08-17T01:33:32.713Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/wst_environmental_lesson03</loc>
<lastmod>2026-08-17T01:33:31.819Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_bmd_less3</loc>
<lastmod>2026-08-11T19:22:05.995Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_sound_lesson01</loc>
<lastmod>2026-08-11T19:22:05.261Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_bmd_less4</loc>
<lastmod>2026-08-17T01:33:30.798Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_bmd_less2</loc>
<lastmod>2026-08-17T01:33:29.943Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_nanoparticles_lesson03</loc>
<lastmod>2026-08-17T01:33:28.991Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson04</loc>
<lastmod>2026-08-17T01:33:27.972Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_drops_mary_less</loc>
<lastmod>2026-08-17T01:33:26.956Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_sensorswork_lesson01</loc>
<lastmod>2026-08-17T01:33:26.001Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_sensorswork_lesson02</loc>
<lastmod>2026-08-17T01:33:24.934Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_latex_lesson02</loc>
<lastmod>2026-08-17T01:33:23.963Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_bio_lesson05</loc>
<lastmod>2026-08-11T19:21:57.486Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_sound_lesson03</loc>
<lastmod>2026-08-17T01:33:23.183Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_linear_eqn_less1</loc>
<lastmod>2026-08-06T15:36:00.031Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson08</loc>
<lastmod>2026-08-17T01:33:22.291Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson06</loc>
<lastmod>2026-08-17T01:33:21.374Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_floppy_lesson01</loc>
<lastmod>2026-08-17T01:33:20.405Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_hybrid_design_less3</loc>
<lastmod>2026-08-11T19:21:53.092Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/ucd_energy_lesson03</loc>
<lastmod>2026-08-17T01:33:19.361Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_surfacetensionunit_less2</loc>
<lastmod>2026-08-17T01:33:18.371Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy_lesson02</loc>
<lastmod>2026-08-11T19:21:50.309Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_lesson4_food_tg</loc>
<lastmod>2026-08-11T19:21:49.587Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_cleanupmess_less3</loc>
<lastmod>2026-08-17T01:33:17.303Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson07</loc>
<lastmod>2026-08-11T19:21:47.713Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_evolution_mary_less</loc>
<lastmod>2026-08-11T19:21:46.825Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_yeast_mary_less</loc>
<lastmod>2026-08-11T19:21:45.967Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_heat_lesson01</loc>
<lastmod>2026-08-17T01:33:16.496Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_biomed_lesson08</loc>
<lastmod>2026-08-17T01:33:15.538Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_balloons_lesson01</loc>
<lastmod>2026-08-17T01:33:14.856Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_cancer_lesson1</loc>
<lastmod>2026-08-17T01:33:14.026Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_mri_lesson_1</loc>
<lastmod>2026-08-11T19:21:41.646Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_floppy_lesson02</loc>
<lastmod>2026-08-17T01:33:12.781Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_aerogel_lesson01</loc>
<lastmod>2026-08-17T01:33:12.052Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/umo_ourbodies_lesson03</loc>
<lastmod>2026-08-17T01:33:11.198Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_rockets_lesson04</loc>
<lastmod>2026-08-11T19:21:38.091Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_navigation_lesson09</loc>
<lastmod>2026-08-11T19:21:36.908Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_cellresp_mary_less</loc>
<lastmod>2026-08-11T19:21:35.880Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_surg_lesson05</loc>
<lastmod>2026-08-17T01:33:10.013Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/usf_dome_lesson01</loc>
<lastmod>2026-08-11T19:21:33.506Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_sound_lesson02</loc>
<lastmod>2026-08-11T19:21:32.755Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_rivers_lesson01</loc>
<lastmod>2026-08-11T19:21:32.044Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_retcoulter_les1</loc>
<lastmod>2026-08-11T19:21:31.324Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uta_dense_lesson01</loc>
<lastmod>2026-08-17T01:33:08.961Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_filtering_lesson01</loc>
<lastmod>2026-08-17T01:33:08.237Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_cells_lesson03</loc>
<lastmod>2026-08-17T01:33:07.375Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_taste_mary_less</loc>
<lastmod>2026-08-06T15:35:34.911Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_dimension_tech_less</loc>
<lastmod>2026-08-17T01:33:06.539Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_flyingtshirt_lesson01</loc>
<lastmod>2026-08-17T01:33:05.821Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_lifescience_lesson01</loc>
<lastmod>2026-08-11T19:21:26.561Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_air_lesson05</loc>
<lastmod>2026-08-11T19:21:25.453Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/clem_waves_lesson01</loc>
<lastmod>2026-08-17T01:33:05.016Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy_lesson04</loc>
<lastmod>2026-08-11T19:21:24.261Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy_lesson05</loc>
<lastmod>2026-08-11T19:21:23.042Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_biomed_lesson03</loc>
<lastmod>2026-08-17T01:33:04.227Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_mechanics_lesson10</loc>
<lastmod>2026-08-11T19:21:21.404Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_environ_lesson02</loc>
<lastmod>2026-08-11T19:21:20.524Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_foodpackage_music_less</loc>
<lastmod>2026-08-17T01:33:03.547Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csu_polymer_lesson01</loc>
<lastmod>2026-08-17T01:33:02.845Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_pveff_lesson03</loc>
<lastmod>2026-08-17T01:33:01.798Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_housing_lesson02</loc>
<lastmod>2026-08-11T19:21:17.033Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_biomed_lesson01</loc>
<lastmod>2026-08-17T01:33:00.673Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_friction_smary_less</loc>
<lastmod>2026-08-11T19:21:15.273Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_rockets_lesson02</loc>
<lastmod>2026-08-17T01:32:59.651Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy2_lesson05</loc>
<lastmod>2026-08-17T01:32:58.780Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_energy2_lesson08</loc>
<lastmod>2026-08-17T01:32:57.554Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_natdis_lesson03</loc>
<lastmod>2026-08-11T19:21:11.592Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_hockey_music_less</loc>
<lastmod>2026-08-11T19:21:10.550Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/duk_photo_mary_less</loc>
<lastmod>2026-08-11T19:21:09.873Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_liftoff_lesson01</loc>
<lastmod>2026-08-17T01:32:56.814Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_earth_lesson07</loc>
<lastmod>2026-08-11T19:21:08.391Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_trusses_lesson01</loc>
<lastmod>2026-08-17T01:32:55.930Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_intro_lesson02</loc>
<lastmod>2026-08-11T19:21:06.414Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/van_cleanupmess_less2</loc>
<lastmod>2026-08-11T19:21:05.471Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/ucd_energy_lesson02</loc>
<lastmod>2026-08-17T01:32:54.756Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/csm_lesson7_reporting_tg</loc>
<lastmod>2026-08-11T19:21:03.755Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/clem_waves_lesson03</loc>
<lastmod>2026-08-17T01:32:54.027Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_earth_lesson08</loc>
<lastmod>2026-08-11T19:21:02.962Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_solar_lesson02</loc>
<lastmod>2026-08-17T01:32:53.120Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/uoh_fracture_lesson01</loc>
<lastmod>2026-08-17T01:32:52.245Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/lessons/cub_biomed_lesson10</loc>
<lastmod>2026-08-17T01:32:51.083Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-3072-sunscreen-showdown-mineral-UV-filters-activity</loc>
<lastmod>2026-08-17T05:03:46.212Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucb-3064-typical-values-jupyter-notebook-activity</loc>
<lastmod>2026-08-13T22:52:25.371Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-3062-pendulum-art-simple-harmonic-motion-activity</loc>
<lastmod>2026-08-17T01:32:47.908Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-3060-rock-solid-solutions-challenge-activity</loc>
<lastmod>2026-08-17T01:32:46.793Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-3044-robot-controller-line-follower-activity</loc>
<lastmod>2026-08-17T01:32:45.655Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst-3033-synthetic-biology-new-genes-proteins-activity</loc>
<lastmod>2026-08-17T01:32:44.462Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-3050-memristor-materials-engineering-design-activity</loc>
<lastmod>2026-08-17T01:32:43.289Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uok-3027-get-slimy-exploring-matter-activity</loc>
<lastmod>2026-08-17T01:32:42.003Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/eclips-3046-nasa-eclips-shower-clock-activity</loc>
<lastmod>2026-08-17T01:32:40.906Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-3045-unbeweavably-strong-structutes-materials-activity</loc>
<lastmod>2026-08-17T01:32:40.104Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-3040-cell-membranes-osmosis-gummy-bears</loc>
<lastmod>2026-08-17T01:32:39.055Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/jpl-3055-light-detector-space-communications-activity</loc>
<lastmod>2026-08-17T01:32:38.388Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/jpl-3053-mars-thermos-design-heat-transfer</loc>
<lastmod>2026-08-17T01:32:37.914Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/jpl-3049-mars-sample-return-coding-challenge</loc>
<lastmod>2026-08-17T01:32:37.037Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/bgsu-2919-all-charged-up-homemade-capacitor-activity</loc>
<lastmod>2026-08-17T01:32:35.340Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uod-3034-beyond-binary-building-blocks-digital-activity</loc>
<lastmod>2026-08-17T01:32:34.665Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-3043-make-it-clean-cleaning-product-activity</loc>
<lastmod>2026-08-17T01:32:33.430Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/jpl-3042-mars-chemistry-coding-challenge-activity</loc>
<lastmod>2026-08-17T01:32:32.245Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uod-3017-microchips-photolithography-light-activity</loc>
<lastmod>2026-08-17T01:32:31.558Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uok-3030-sweet-surfactants-surface-tension-activity</loc>
<lastmod>2026-08-17T01:32:31.078Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uok-3025-polymers-plastic-bioplastics-activity</loc>
<lastmod>2026-08-17T01:32:30.549Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uok-3026-additives-affect-surface-tension-activity</loc>
<lastmod>2026-08-17T01:32:30.043Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uod-3024-rush-hour-mayhem-logic-gates-activity</loc>
<lastmod>2026-08-17T01:32:29.561Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/tam-3022-ethical-twist-engineering-design-activity</loc>
<lastmod>2026-08-17T01:32:29.061Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uok-3021-smart-prosthetic-hand-grip-arduino-activity</loc>
<lastmod>2026-08-17T01:32:28.117Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/fiu-3023-light-based-diagnostic-device-activity</loc>
<lastmod>2026-08-17T01:32:26.907Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/clem-3014-robotics-pick-place-challenge-activity</loc>
<lastmod>2026-08-17T01:32:25.694Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uok-3020-mission-myelin-model-damage-repair-activity</loc>
<lastmod>2026-08-17T01:32:25.046Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-3008-fluid-forces-bridges-hydraulic-systems-activity</loc>
<lastmod>2026-08-17T01:32:24.514Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usm-3009-biome-robots-polymers-survival-activity</loc>
<lastmod>2026-08-17T01:32:23.629Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/clem-3005-sole-survivors-energy-orthotics-activity</loc>
<lastmod>2026-08-17T01:32:22.476Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uon-2997-ethical-hacking-lab-activity</loc>
<lastmod>2026-08-17T01:32:21.771Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uol-3007-fast-track-factory-mass-production-activity</loc>
<lastmod>2026-08-17T01:32:20.839Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/jpl-3028-robotic-arm-challenge-informal-learning-activity</loc>
<lastmod>2026-08-11T19:20:37.228Z</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>2026-08-17T01:32:20.175Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uod-2953-materials-down-hill-activity</loc>
<lastmod>2026-08-17T01:32:19.668Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-3002-mines-mobiles-aqueous-solutions-activity</loc>
<lastmod>2026-08-17T01:32:19.171Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/oks-2995-unlocking-secrets-semiconductors-logic-gates-activity</loc>
<lastmod>2026-08-17T01:32:18.684Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uon-2999-ethical-hacking-lab-podman-activity</loc>
<lastmod>2026-08-17T01:32:18.203Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uol-3003-craft-production-efficiency-profit-purpose-activity</loc>
<lastmod>2026-08-17T01:32:17.270Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uok-2996-statistical-analysis-noise-detection-soundproofing</loc>
<lastmod>2026-08-17T01:32:16.057Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis-2924-microcontroller-instruments-medical-use-activity</loc>
<lastmod>2026-08-17T01:32:15.192Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ind-2993-arduino-geiger-counter-activity</loc>
<lastmod>2026-08-17T01:32:14.157Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/tam-2983-life-cycle-energy-buildings-activity</loc>
<lastmod>2026-08-17T02:18:13.263Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uod-2964-toilet-paper-trouble-time-activity</loc>
<lastmod>2026-08-17T01:32:12.536Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-2982-fairy-tale-engineering-three-little-pigs-activity</loc>
<lastmod>2026-08-17T01:32:11.354Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2989-microplastics-filtration-solutions-activity</loc>
<lastmod>2026-08-17T01:32:10.146Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-2979-diy-microscope-challenge-light-activity</loc>
<lastmod>2026-08-17T01:32:08.972Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2975-sediment-transport-bayou-design-solutions</loc>
<lastmod>2026-08-17T01:32:07.827Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2938-neural-data-graphs-python-activity</loc>
<lastmod>2026-08-17T01:32:05.087Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2937-neural-data-processing-database-python-activity</loc>
<lastmod>2026-08-17T01:32:04.161Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2936-virtual-lab-neuroscience-microcontrollers-activity</loc>
<lastmod>2026-08-17T02:18:11.824Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2935-mapping-neuron-recuitment-muscle-action-activity</loc>
<lastmod>2026-08-17T01:32:02.401Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2977-neuromaze-neural-pathways-robotic-navigation-activity</loc>
<lastmod>2026-08-17T01:32:01.275Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2972-muscle-biopotential-signals-emg-sensors-activity</loc>
<lastmod>2026-08-17T01:32:00.193Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uod-2967-greater-good-designing-public-center-activity</loc>
<lastmod>2026-08-17T01:31:59.073Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uod-2974-lost-explorer-making-cyanotype-print-maps</loc>
<lastmod>2026-08-17T01:31:57.877Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-2980-drop-ball-material-physics-motion-quadratics</loc>
<lastmod>2026-08-17T01:31:56.686Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2985-sweet-machine-learning-data-diabetes-activity</loc>
<lastmod>2026-08-17T02:18:11.130Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/clem-2888-investigations-nitinol-metal-shape-memory</loc>
<lastmod>2026-08-17T01:31:55.011Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uod-2963-dragging-dilemma-overcoming-friction-move-rocks-activity</loc>
<lastmod>2026-08-17T01:31:53.898Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo-2900-brain-processing-senses-helmet-design-activity</loc>
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<loc>https://www.teachengineering.org/activities/umo-2954-human-emg-signals-robot-movements-activity</loc>
<lastmod>2026-08-17T01:31:51.637Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/umo-2952-tone-shock-conditioning-activity3</loc>
<lastmod>2026-08-17T01:31:50.814Z</lastmod>
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<loc>https://www.teachengineering.org/activities/umo-2952-neuron-electrical-impulses-activity1</loc>
<lastmod>2026-08-17T01:31:50.122Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/umo-2952-fear-pavlovs-dog-activity2</loc>
<lastmod>2026-08-17T01:31:49.484Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uok-2949-safe-drinking-water-filtration-system-activity</loc>
<lastmod>2026-08-17T01:31:48.404Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ind-2962-arduino-air-quality-monitor-activity</loc>
<lastmod>2026-08-17T01:31:47.282Z</lastmod>
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<loc>https://www.teachengineering.org/activities/umo-2947-genome-engineer-crispr-cas9-genetic-disorder-activity</loc>
<lastmod>2026-08-17T01:31:46.173Z</lastmod>
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<loc>https://www.teachengineering.org/activities/mis-2925-python-functions-copilot-computer-science-activity</loc>
<lastmod>2026-08-17T01:31:44.370Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2920-elisa-point-of-care-devices-antigen-activity</loc>
<lastmod>2026-08-17T01:31:43.915Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2939-rising-sea-levels-density-mixtures-solutions-activity</loc>
<lastmod>2026-08-17T01:31:42.992Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uok-2903-sustainable-separations-chemical-engineering-activity</loc>
<lastmod>2026-08-17T01:31:41.912Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2926-under-pressure-arduino-sensor-force-activity</loc>
<lastmod>2026-08-17T01:31:40.783Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/nds-2865-forest-fires-cars-co2-emissions-activity</loc>
<lastmod>2026-08-17T01:31:40.083Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2842-machine-free-manufacturing-process-activity</loc>
<lastmod>2026-08-17T01:31:39.194Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2929-heat-capacity-water-oil-materials-activity</loc>
<lastmod>2026-08-17T01:31:38.084Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bgsu-2915-projectile-motion-arduino-launcher-competition-activity</loc>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2918-optical-telescope-building-activity</loc>
<lastmod>2026-08-17T01:31:35.871Z</lastmod>
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<loc>https://www.teachengineering.org/activities/umo-2941-bright-ideas-light-reflection-microbits-activity</loc>
<lastmod>2026-08-17T01:31:34.813Z</lastmod>
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<loc>https://www.teachengineering.org/activities/uok-2943-helping-hands-assisted-device-multiple-sclerosis-activity</loc>
<lastmod>2026-08-17T01:31:33.692Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/umo-2942-mindful-messages-communication-solutions-activity</loc>
<lastmod>2026-08-17T01:31:32.976Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2858-biodegradable-leaves-nontoxic-packing-material</loc>
<lastmod>2026-08-17T01:31:31.904Z</lastmod>
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<loc>https://www.teachengineering.org/activities/nds-2866-environment-solutions-river-dynamics-mosquito-activity</loc>
<lastmod>2026-08-17T01:31:31.203Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2928-tap-testing-acoustic-sleuthing-activity</loc>
<lastmod>2026-08-17T01:31:30.157Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2873-scrub-scum-shine-materials-matter</loc>
<lastmod>2026-08-17T01:31:28.806Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2824-stars-spectrometer-spectroscopy-activity</loc>
<lastmod>2026-08-17T01:31:28.066Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2914-density-solutions-mixture-design-process-activity</loc>
<lastmod>2026-08-17T01:31:27.162Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2817-soft-materials-tactile-sensing-activity</loc>
<lastmod>2026-08-17T01:31:26.034Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2885-power-produce-fruits-veggies-solar-cells-activity</loc>
<lastmod>2026-08-17T01:31:24.972Z</lastmod>
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<loc>https://www.teachengineering.org/activities/uot-2884-save-clothes-avocados-matter-properties-activity</loc>
<lastmod>2026-08-17T01:31:23.871Z</lastmod>
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<loc>https://www.teachengineering.org/activities/umo-2921-panic-attack-brain-computer-nervous-system-activity</loc>
<lastmod>2026-08-17T02:18:10.151Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2689-exploring-matter-rock-candy-activity</loc>
<lastmod>2026-08-17T01:31:22.149Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoo-2917-gatorade-gravity-machine-structure-design-activity</loc>
<lastmod>2026-08-17T01:31:21.230Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2894-paper-football-physics-activity</loc>
<lastmod>2026-08-17T01:31:20.169Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2754-mechanized-farm-equipment-design-activity</loc>
<lastmod>2026-08-17T01:31:19.100Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2615-simon-decoded-computational-thinking-activity</loc>
<lastmod>2026-08-17T01:31:17.983Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2898-protective-fashion-beach-edition-activity</loc>
<lastmod>2026-08-17T01:31:16.864Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2852-international-market-accessibility-engineering-design</loc>
<lastmod>2026-08-17T01:31:15.147Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2702-asymmetric-membranes-microfiltration-algae</loc>
<lastmod>2026-08-17T01:31:14.406Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2830-prototyping-engineering-solutions-cad</loc>
<lastmod>2026-08-17T01:31:12.255Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/nds-2787-earthquake-effects-structural-integrity-building</loc>
<lastmod>2026-08-17T01:31:11.175Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uol-2853-clustering-exploring-periodic-table-elements-activity</loc>
<lastmod>2026-08-17T01:31:10.494Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2845-aquaponics-water-system-bolivia-activity</loc>
<lastmod>2026-08-17T01:31:10.038Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2820-arduino-warning-system-activity</loc>
<lastmod>2026-08-17T01:31:09.585Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2846-raise-roof-engineering-leakproof-roofs-activity</loc>
<lastmod>2026-08-17T01:31:08.672Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2849-engineering-sapling-guard-recycled-materials</loc>
<lastmod>2026-08-17T01:31:07.596Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2804-electrophoresis-gel-box-engineering-activity</loc>
<lastmod>2026-08-17T01:31:06.916Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2831-touch-sensor-arduino-trigger-led-buzzer</loc>
<lastmod>2026-08-17T01:31:06.447Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2794-materials-matter-composites-properties-activity</loc>
<lastmod>2026-08-17T01:30:57.709Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2848-aluminum-rope-metal-design-activity</loc>
<lastmod>2026-08-17T01:30:56.632Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2836-designing-prototypes-save-coral-reefs-activity</loc>
<lastmod>2026-08-17T01:30:55.546Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2802-distance-displacement-measurement-activity</loc>
<lastmod>2026-08-17T01:30:52.021Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2810-healthy-cancerous-cells-arduino-activity</loc>
<lastmod>2026-08-17T01:30:51.566Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/nds-2779-flood-causes-mitigation-strategies-activity</loc>
<lastmod>2026-08-17T01:30:51.098Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2800-power-drag-lab-work-energy</loc>
<lastmod>2026-08-17T01:30:50.634Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2789-polyvalency-polyresistance-organisms-bacteriophage-activity</loc>
<lastmod>2026-08-06T15:31:18.230Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2822-machine-learning-interactive-journey-activity</loc>
<lastmod>2026-08-17T01:30:50.108Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2840-engineering-friction-grip-activity</loc>
<lastmod>2026-08-17T01:30:49.236Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2847-ping-pong-ball-retriever-engineering-challenge</loc>
<lastmod>2026-08-17T01:30:48.176Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2795-fluid-viscosity-temperature-activity</loc>
<lastmod>2026-08-17T01:30:47.519Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2703-insulator-design-challenge-activity</loc>
<lastmod>2026-08-17T01:30:46.559Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2792-wave-refractions-angle-activity</loc>
<lastmod>2026-08-17T01:30:45.850Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2825-creative-engineering-electric-vehicle-design</loc>
<lastmod>2026-08-17T01:30:44.861Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2797-robomentum-velocity-mass-momentum-activity</loc>
<lastmod>2026-08-17T01:30:43.793Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2763-exploring-light-holographic-chocolate-activity</loc>
<lastmod>2026-08-17T01:30:42.675Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2803-solar-powered-car-design-activity</loc>
<lastmod>2026-08-17T01:30:41.564Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2767-oil-spill-cleanup-polarity-activity</loc>
<lastmod>2026-08-17T01:30:40.454Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2827-tinkercad-circuits-ev-motor-workshop</loc>
<lastmod>2026-08-11T19:19:17.660Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2826-tinkercad-3d-design-ev-concept-car-workshop</loc>
<lastmod>2026-08-06T15:32:06.463Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2812-environmental-justice-storymap-collection-activity</loc>
<lastmod>2026-08-06T15:34:57.956Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2812-environmental-impact-storymap-collection-activity</loc>
<lastmod>2026-08-06T15:32:27.618Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ucb-2791-periodic-table-intro-elements-activity</loc>
<lastmod>2026-08-17T01:30:39.791Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ind-2837-earth-critical-zone-edible-model-cross-sections</loc>
<lastmod>2026-08-17T01:30:39.329Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2785-heat-transfer-solar-dryers-activity</loc>
<lastmod>2026-08-17T01:30:38.856Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2819-python-conditionals-artificial-intelligence-technology</loc>
<lastmod>2026-08-17T01:30:38.390Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ind-2761-chasing-sun-solar-panel-activity</loc>
<lastmod>2026-08-17T01:30:37.909Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2643-amazing-hydrogels-polymers-activity</loc>
<lastmod>2026-08-17T01:30:37.441Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2781-recycle-water-cleaning-device-activity</loc>
<lastmod>2026-08-17T01:30:36.930Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2672-roller-coaster-energy-engineering-design</loc>
<lastmod>2026-08-17T01:30:36.468Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2766-gel-engineering-mixture-solution-activity</loc>
<lastmod>2026-08-17T01:30:35.586Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2765-concrete-composites-lab-activity</loc>
<lastmod>2026-08-17T01:30:34.886Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2760-accessible-toys-visually-impaired-students</loc>
<lastmod>2026-08-17T01:30:33.990Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uow-2692-living-walls-arduino-sensing-toolkit</loc>
<lastmod>2026-08-17T01:30:33.296Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uod-2764-clean-cooking-matters-activity</loc>
<lastmod>2026-08-17T01:30:32.337Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2701-3d-printing-cad-software-activity</loc>
<lastmod>2026-08-17T01:30:31.600Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2743-atmospheric-distortion-light-bubbles-air</loc>
<lastmod>2026-08-17T01:30:31.164Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/umo-2550-brain-waves-applications-analysis-activity</loc>
<lastmod>2026-08-17T01:30:30.564Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2742-operation-airdrop-protect-cargo-design</loc>
<lastmod>2026-08-17T01:30:29.534Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2723-environment-plants-soil-properties-activity</loc>
<lastmod>2026-08-17T01:30:28.904Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2716-designing-magnifiers-magnification-phenomenon</loc>
<lastmod>2026-08-17T01:30:28.398Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2712-prosthetics-power-engineering-design-activity</loc>
<lastmod>2026-08-17T01:30:27.461Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/usm-2669-engineering-efficiency-alcoholic-fermentation</loc>
<lastmod>2026-08-17T01:30:26.761Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2644-crystal-creator-resistance-conductors-insulators</loc>
<lastmod>2026-08-17T01:30:26.298Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2461-soil-mechanics-science-activity</loc>
<lastmod>2026-08-17T01:30:25.831Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2640-pretty-colors-light-absorbence-activity</loc>
<lastmod>2026-08-17T01:30:25.360Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2693-musical-instruments-design-material-properties</loc>
<lastmod>2026-08-17T01:30:24.459Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uow-2675-electromagnetic-waves-radiation-spectrum-activity</loc>
<lastmod>2026-08-17T01:30:23.665Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uconn-2673-minimizing-pressure-optimizing-comfort-capacitance</loc>
<lastmod>2026-08-17T01:30:23.175Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/pur-2655-net-zero-ecological-building-design-activity</loc>
<lastmod>2026-08-17T01:30:22.684Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2745-hands-free-reading-structure-engineering-design</loc>
<lastmod>2026-08-17T01:30:22.208Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2696-animal-adaptation-fashion-show-activity</loc>
<lastmod>2026-08-17T01:30:21.275Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/utep-2663-rc-circuits-electricity-current-activity</loc>
<lastmod>2026-08-17T01:30:20.211Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2668-keep-heat-in-insulation-materials-activity</loc>
<lastmod>2026-08-17T01:30:19.751Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2709-seeing-sound-musical-art-waves-activity</loc>
<lastmod>2026-08-17T01:30:19.296Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uoh-2667-biodegradable-hydrogels-water-conservation</loc>
<lastmod>2026-08-17T01:30:18.815Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/umo-2558-exploration-ecg-emg-technologies-activity</loc>
<lastmod>2026-08-17T01:30:17.728Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2713-save-snails-designing-collapsible-barrier</loc>
<lastmod>2026-08-17T01:30:16.611Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2720-sinkhole-sinkhole-emergency-engineering-design-process</loc>
<lastmod>2026-08-17T01:30:15.513Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2711-fabricating-focus-tool-engineering-design-process</loc>
<lastmod>2026-08-17T01:30:14.380Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2704-oil-spill-clean-up-engineering-design-activity</loc>
<lastmod>2026-08-17T01:30:13.238Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/und-2664-alkane-resources-molecules-activity</loc>
<lastmod>2026-08-17T01:30:12.578Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uconn-2662-contractions-calculations-force-resistance-activity</loc>
<lastmod>2026-08-17T01:30:12.081Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2646-contaminated-water-mystery-activity</loc>
<lastmod>2026-08-17T01:30:11.113Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2719-award-design-structure-materials-activity</loc>
<lastmod>2026-08-17T01:30:09.944Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2631-algae-blooms-takeover-engineering-design-activity</loc>
<lastmod>2026-08-17T01:30:08.858Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2637-seed-trap-engineering-design-activity</loc>
<lastmod>2026-08-17T01:30:08.173Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/upitt-2616-cancer-treatments-engineering-design-process-activity</loc>
<lastmod>2026-08-17T01:30:07.249Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/upitt-2620-engineering-hydroponic-system-activity</loc>
<lastmod>2026-08-17T01:30:06.588Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2657-mission-impossible-voltaic-protocol-activity</loc>
<lastmod>2026-08-17T01:30:06.073Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2641-light-up-machines-building-fluorescent-prototype</loc>
<lastmod>2026-08-17T01:30:05.195Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2658-water-bottle-holder-engineering-design-activity</loc>
<lastmod>2026-08-17T01:30:04.126Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2638-light-dyes-exploring-bioluminescence-activity</loc>
<lastmod>2026-08-17T01:30:03.041Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2485-photocatalytic-delivery-system-maker-challenge</loc>
<lastmod>2026-08-07T18:24:05.064Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ced-2680-engineering-design-process-thinking</loc>
<lastmod>2026-08-17T01:29:58.667Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ced-2706-transportation-fuels-debate-engineering-design</loc>
<lastmod>2026-08-06T15:34:27.996Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ced-2707-carbon-footprints-transportation-greenhouse-gases</loc>
<lastmod>2026-08-06T15:32:05.830Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ced-2705-mouse-trap-cars-engineering-design</loc>
<lastmod>2026-08-17T01:29:57.509Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ced-2679-straw-bridges-design-challenge-activity</loc>
<lastmod>2026-08-17T01:29:56.036Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ced-2678-creative-crash-testing-car-challenge-activity</loc>
<lastmod>2026-08-17T01:29:54.742Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ced-2671-efficient-car-design-challenge-activity</loc>
<lastmod>2026-08-17T01:29:53.566Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ced-2670-newspaper-towers-engineering-design-activity</loc>
<lastmod>2026-08-17T01:29:52.788Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2636-carbon-emissions-3-5-activity</loc>
<lastmod>2026-08-17T01:29:52.096Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2635-carbon-emissions-carl-k-2-activity</loc>
<lastmod>2026-08-17T01:29:51.292Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2633-air-quality-weather-connections-3-5-activity</loc>
<lastmod>2026-08-17T01:29:50.460Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2632-air-quality-particulate-matter-k-2-activity</loc>
<lastmod>2026-08-17T01:29:49.733Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2622-machine-learning-diabetes-prediction</loc>
<lastmod>2026-08-17T01:29:49.142Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/upitt-2621-engineering-better-cast-design-activity</loc>
<lastmod>2026-08-17T01:29:48.301Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/fiu-2614-sensors-hearts-arduino-engineering-design</loc>
<lastmod>2026-08-17T01:29:47.262Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uow-2585-speed-sound-altitude-activity</loc>
<lastmod>2026-08-17T01:29:46.615Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/vpi-2594-watershed-delineation-activity</loc>
<lastmod>2026-08-17T01:29:46.119Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2630-engineering-seawall-storm-erosion-activity</loc>
<lastmod>2026-08-17T01:29:45.189Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2613-nature-solution-biomimicry-engineering</loc>
<lastmod>2026-08-17T01:29:44.502Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/vpi-2603-exploring-flow-rate-activity</loc>
<lastmod>2026-08-17T01:29:44.037Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uot-2460-fun-leaf-chromotography-activity</loc>
<lastmod>2026-08-17T01:29:43.544Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/usu-2586-data-optimize-vending-machine</loc>
<lastmod>2026-08-17T01:29:43.073Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2629-snack-holder-recycled-materials-design-activity</loc>
<lastmod>2026-08-17T01:29:41.786Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2627-pollinate-flower-materials-design</loc>
<lastmod>2026-08-17T01:29:40.621Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2612-measuring-small-things-activity</loc>
<lastmod>2026-08-17T01:29:39.987Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2625-designing-communication-device-sound-activity</loc>
<lastmod>2026-08-17T01:29:36.508Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2624-absorbing-airplane-noise-activity</loc>
<lastmod>2026-08-17T01:29:35.388Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uow-2579-evaporation-transpiration-function-activity</loc>
<lastmod>2026-08-17T01:29:34.733Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/vpi-2595-paper-towers-pool-balls-challenge-pbl</loc>
<lastmod>2026-08-17T01:29:33.852Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/bos-2580-balance-liquid-coin-forces-activity</loc>
<lastmod>2026-08-17T01:29:33.195Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uom-2552-what-is-python-activity</loc>
<lastmod>2026-08-17T01:29:32.710Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2544-cell-structures-fluorescent-dyes-activity</loc>
<lastmod>2026-08-17T01:29:30.942Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2348-judgement-jellybeans-linear-model-activity</loc>
<lastmod>2026-08-17T01:29:30.379Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/umo-2547-jupyter-notebook-explore-waves-activity</loc>
<lastmod>2026-08-17T01:29:26.587Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cmu-2516-leaf-etchings-model-structure-photosynthesis</loc>
<lastmod>2026-08-17T01:29:26.095Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2317-wind-powered-car-engineering-design</loc>
<lastmod>2026-08-17T01:29:25.579Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2319-jack-escape-slide-engineering-design</loc>
<lastmod>2026-08-17T01:29:24.593Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/usu-2577-improving-covid-procedures-school-engineering-design</loc>
<lastmod>2026-08-17T01:29:23.930Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uop-2575-modeling-nuclear-damage-cell-movement</loc>
<lastmod>2026-08-17T01:29:23.439Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2316-engineering-minion-rescue-buoyancy-float</loc>
<lastmod>2026-08-17T01:29:22.523Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uow-2546-post-launch-analysis-cosmic-radiation-activity3</loc>
<lastmod>2026-08-17T01:29:21.709Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uow-2546-high-altitude-balloon-launch-cosmic-radiation-activity2</loc>
<lastmod>2026-08-17T01:29:20.946Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uow-2456-building-payload-cosmic-radiation-activity1</loc>
<lastmod>2026-08-17T01:29:20.235Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/pur-2576-lunar-olympics-physics-online-activity</loc>
<lastmod>2026-08-17T01:29:19.625Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uconn-2523-lean-manufacturing-process-activity</loc>
<lastmod>2026-08-17T01:29:19.128Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice2-2524-energy-innovator-generator-activity</loc>
<lastmod>2026-08-17T01:29:18.654Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice2-crystalline-cloth-model-water-treatment-filters</loc>
<lastmod>2026-08-17T01:29:18.183Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice2-2545-car-design-side-impact-crash-safety-feature</loc>
<lastmod>2026-08-17T01:29:17.691Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice2-2510-handcrafted-cement-shape-engineering-activity</loc>
<lastmod>2026-08-17T01:29:17.175Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice2-resin-keyrings-keychains-fabrication</loc>
<lastmod>2026-08-17T01:29:16.639Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/ind-2572-modeling-testing-slime-physical-properties</loc>
<lastmod>2026-08-17T01:29:16.165Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uof-2521-engineering-solutions-dry-playground-design</loc>
<lastmod>2026-08-17T01:29:15.697Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cmu-2561-turtle-bridge-engineering-design</loc>
<lastmod>2026-08-17T01:29:14.804Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cla-energy-projects</loc>
<lastmod>2026-08-17T01:29:12.040Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uon-2543-tracking-movements-metadata-activity</loc>
<lastmod>2026-08-17T01:29:11.461Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice2-2535-removing-scaling-sources-citric-acid</loc>
<lastmod>2026-08-17T01:29:10.999Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice2-2527-bacteria-antibiotic-resistance-nanotechnology-activity</loc>
<lastmod>2026-08-17T01:29:10.017Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice2-2501-bacteriophage-virus-bacteria-builder-challenge</loc>
<lastmod>2026-08-07T18:24:05.587Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2509-super-slime-material-science-engineering</loc>
<lastmod>2026-08-17T01:29:09.429Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2498-engineering-solutions-sticky-situation-design</loc>
<lastmod>2026-08-17T01:29:08.956Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cmu-2539-paper-spiral-elevator-design</loc>
<lastmod>2026-08-17T01:29:08.442Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2499-clean-green-washing-machine-challenge-activity</loc>
<lastmod>2026-08-17T01:29:07.847Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice2-2526-water-natural-source-freshwater-saltwater-activity</loc>
<lastmod>2026-08-17T01:29:06.877Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice2-2502-nanotube-breast-cancer-design-challenge</loc>
<lastmod>2026-08-07T18:24:05.885Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoa-2458-plastic-properties-environment-effects</loc>
<lastmod>2026-08-17T01:29:06.120Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/unm-2490-conductive-circuit-card-company-activity</loc>
<lastmod>2026-08-17T01:29:05.313Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rut-2497-food-electrical-circuit-device-design</loc>
<lastmod>2026-08-17T01:29:04.661Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis-2476-boat-afloat-corrosion-engineering-design-activity</loc>
<lastmod>2026-08-17T01:29:00.841Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uakron-2451-aerogel-cookies-engineering-design-process</loc>
<lastmod>2026-08-17T01:29:00.344Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/rice-2505-bio-husk-bags-design-challenge</loc>
<lastmod>2026-08-17T01:28:48.361Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2308-flight-fruit-weight-gravity-imagination</loc>
<lastmod>2026-08-17T01:28:47.361Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ind-2472-trust-truss-design-wooden-bridge-activity</loc>
<lastmod>2026-08-17T01:28:37.449Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rut-2487-nanotechnology-action-organic-electronics</loc>
<lastmod>2026-08-17T01:28:25.242Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2538-exploring-variables-mint-mobiles-high-school</loc>
<lastmod>2026-08-17T01:28:24.583Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub-2537-exploring-variables-mint-mobiles-middle-school</loc>
<lastmod>2026-08-17T01:28:23.672Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2484-computer-simulation-artificial-neural-network-activity</loc>
<lastmod>2026-08-17T02:18:06.176Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/mis-2480-constructing-testing-3d-printed-glove-activity</loc>
<lastmod>2026-08-17T01:28:22.086Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/csm-2353-acting-algorithm-google-pagerank-activity</loc>
<lastmod>2026-08-17T01:28:21.517Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-2420-liquid-crystal-thermometers-design</loc>
<lastmod>2026-08-17T01:28:20.915Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice-2368-gene-therapy-design-activity</loc>
<lastmod>2026-08-17T01:28:20.436Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ind-2350-radiation-pressure-photons-intensity-flux</loc>
<lastmod>2026-08-17T01:28:19.925Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/uconn-2400-cracking-bone-force-design-activity</loc>
<lastmod>2026-08-17T01:28:19.374Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2496-bandage-water-absorbing-crystals-design-challenge</loc>
<lastmod>2026-08-07T18:24:07.072Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2495-inundation-inspiration-design-challenge</loc>
<lastmod>2026-08-07T18:24:07.364Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2493-freewheeling-friction-design-challenge</loc>
<lastmod>2026-08-07T18:24:07.663Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2492-silkworm-strength-bridge-design-challenge</loc>
<lastmod>2026-08-17T01:28:18.924Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2491-damp-drought-plant-design-challenge</loc>
<lastmod>2026-08-07T18:24:08.252Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice3-2467-milky-way-stars-design-challenge</loc>
<lastmod>2026-08-07T18:24:08.538Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van-2465-ar-mirror-physiology-programming-challenge</loc>
<lastmod>2026-08-07T18:24:08.842Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice3-2481-pedometer-wearable-technology-design-challenge</loc>
<lastmod>2026-08-17T01:28:18.582Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uot-2407-bacterial-adaptations-application-genetic-engineering</loc>
<lastmod>2026-08-17T01:28:18.160Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2242-animal-survival-engineering-habitat-design</loc>
<lastmod>2026-08-17T01:28:17.625Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usm-2398-slime-graphing-speed-tensile-strength</loc>
<lastmod>2026-08-17T01:28:16.584Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uof-2378-engineering-compost-habitat-red-wigglers-worms</loc>
<lastmod>2026-08-17T01:28:16.028Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cmu-2452-boat-design-constraints-engineering-challenge</loc>
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<loc>https://www.teachengineering.org/activities/rice2-2422-ball-chemistry-engineering-design-maker-challenge</loc>
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<loc>https://www.teachengineering.org/activities/rice2-2370-engineering-silver-nanoparticles</loc>
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<loc>https://www.teachengineering.org/activities/uod-2270-soundproofing-material-activity</loc>
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<loc>https://www.teachengineering.org/activities/usm-2287-engineering-polymers-potatoes</loc>
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<loc>https://www.teachengineering.org/activities/uod-2266-properties-matter-design-cellphone-case</loc>
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<loc>https://www.teachengineering.org/activities/nyu2-2298-sensors-visualization-data-arduino-circuit-challenge</loc>
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<loc>https://www.teachengineering.org/activities/lau-2321-simple-machines-mechanisms-rube-goldberg-challenge</loc>
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<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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<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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<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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<loc>https://www.teachengineering.org/activities/mis-2231-designing-sunglasses-light-polarization-sensor</loc>
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<loc>https://www.teachengineering.org/activities/spfun-2141-led-cloud-connected-arduino-coding-light-fixture</loc>
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<loc>https://www.teachengineering.org/activities/cub-2219-xbee-lights-motors-arduino-wireless-communication</loc>
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<loc>https://www.teachengineering.org/activities/cub-2217-servo-bluetooth-phone-arduino-wireless</loc>
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<loc>https://www.teachengineering.org/activities/cub-2216-servo-arm-arduino-serial-communication-protocol</loc>
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<loc>https://www.teachengineering.org/activities/cub-1901-natural-disasters-gis-gps-data-analysis</loc>
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<loc>https://www.teachengineering.org/activities/mis-2229-perfect-vehicle-criteria-solar-speed-volume</loc>
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<loc>https://www.teachengineering.org/activities/spfun-2146-sound-reactive-clothing-arduino-e-textile</loc>
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<loc>https://www.teachengineering.org/activities/spfun-1856-binary-trumpet-digital-music-breadboard-circuitry</loc>
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<loc>https://www.teachengineering.org/activities/unm-2006-et-phone-home-photovoltaics-solar-energy</loc>
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<loc>https://www.teachengineering.org/activities/rice-2257-clean-it-up-oil-spill-product-challenge</loc>
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<loc>https://www.teachengineering.org/activities/ncs-2016-weather-measure-humidity-build-psychrometer</loc>
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<loc>https://www.teachengineering.org/activities/spfun-1851-shoebox-arcade-game-controller-makey-circuit</loc>
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<loc>https://www.teachengineering.org/activities/cub-1971-monitoring-noise-levels-smart-device-physics</loc>
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<loc>https://www.teachengineering.org/activities/mis-1616-electronic-circuit-applications-systems-of-equations</loc>
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<url>
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<url>
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<url>
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<url>
<loc>https://www.teachengineering.org/activities/usm-2091-lab-research-design-phosphorescent-materials</loc>
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<loc>https://www.teachengineering.org/activities/usu-1961-everyday-problems-introduction-engineering-design</loc>
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<loc>https://www.teachengineering.org/activities/ind-1996-frictional-roller-coaster-design-project-calculus</loc>
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<loc>https://www.teachengineering.org/activities/uod-1926-linear-regression-design-challenge</loc>
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<url>
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<loc>https://www.teachengineering.org/activities/nds-1741-statistical-analysis-temperature-sensors-accuracy</loc>
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<loc>https://www.teachengineering.org/activities/nds-1726-bone-transplants-biomedical-mimic-3d</loc>
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<loc>https://www.teachengineering.org/activities/uva-1951-help-bill-bioprinting-skin-muscle-bone</loc>
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<loc>https://www.teachengineering.org/activities/nds-1746-creative-crash-test-cars-mass-momentum</loc>
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<url>
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<loc>https://www.teachengineering.org/activities/und-1721-big-data-collection-manipulation-analysis</loc>
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<loc>https://www.teachengineering.org/activities/spfun-1876-night-light-pennant-lilymini-protosnap</loc>
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<url>
<loc>https://www.teachengineering.org/activities/ncs-2026-chernobyl-empathy-nuclear-energy</loc>
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<url>
<loc>https://www.teachengineering.org/activities/ncs-2021-wind-patterns-desert-hydropower</loc>
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<loc>https://www.teachengineering.org/activities/ncs-2011-solar-farm-cost-benefit-analysis</loc>
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<loc>https://www.teachengineering.org/activities/ncs-2031-cookie-mining-cost-benefit-analysis-analysis-profit</loc>
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<url>
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<url>
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<url>
<loc>https://www.teachengineering.org/activities/fiu_models_activity1</loc>
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<url>
<loc>https://www.teachengineering.org/activities/uoh_elliptical_table_activity1</loc>
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<url>
<loc>https://www.teachengineering.org/activities/spfun_tinymonster_activity1</loc>
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<url>
<loc>https://www.teachengineering.org/activities/gat_lighting_activity1</loc>
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<url>
<loc>https://www.teachengineering.org/activities/cub_geotools_lesson01_activity1</loc>
<lastmod>2026-08-17T01:27:26.814Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/tcnj_classroom_activity1</loc>
<lastmod>2026-08-17T01:27:26.186Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/spfun_artpins_activity1</loc>
<lastmod>2026-08-17T01:27:25.692Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/spfun_masks_activity1</loc>
<lastmod>2026-08-17T01:27:25.214Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/spfun_keyboard_activity1</loc>
<lastmod>2026-08-17T01:27:24.719Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_tslauncher_maker1</loc>
<lastmod>2026-08-11T19:17:40.364Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_carrierdevices_maker1</loc>
<lastmod>2026-08-11T19:17:39.849Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_sneaker_maker1</loc>
<lastmod>2026-08-11T19:17:39.322Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/spfun_rgbcolor_maker1</loc>
<lastmod>2026-08-07T18:24:21.297Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_bottlerockets_activity1</loc>
<lastmod>2026-08-17T01:27:24.226Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_scaling_lesson01_activity1</loc>
<lastmod>2026-08-17T01:27:23.624Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_polygons_angles_trusses_lesson01_activity2</loc>
<lastmod>2026-08-17T01:27:22.896Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_polygons_angles_trusses_lesson01_activity1</loc>
<lastmod>2026-08-17T01:27:21.995Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_aqueducts_lesson01_activity1</loc>
<lastmod>2026-08-17T01:27:21.298Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_scale_model_lesson01_activity2</loc>
<lastmod>2026-08-17T01:27:20.604Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_scale_model_lesson01_activity1</loc>
<lastmod>2026-08-06T15:28:19.656Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_linear_programming_lesson01_activity1</loc>
<lastmod>2026-08-06T15:24:19.108Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_potholes_lesson01_activity1</loc>
<lastmod>2026-08-11T19:17:35.997Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spatviz_lesson01_activity4</loc>
<lastmod>2026-08-17T01:27:19.676Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spatviz_lesson01_activity3</loc>
<lastmod>2026-08-17T01:27:18.585Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spatviz_lesson01_activity2</loc>
<lastmod>2026-08-17T01:27:17.591Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spatviz_lesson01_activity1</loc>
<lastmod>2026-08-17T01:27:16.785Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_assistive_device_activity1</loc>
<lastmod>2026-08-17T01:27:16.167Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/spfun_lightsculpt_activity2</loc>
<lastmod>2026-08-17T01:27:15.584Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/spfun_lightsculpt_activity1</loc>
<lastmod>2026-08-11T19:17:30.536Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ind_complex_solids_activity1</loc>
<lastmod>2026-08-17T01:27:14.907Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_capillary_action_activity1</loc>
<lastmod>2026-08-17T01:27:14.378Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_homeostasis_activity1</loc>
<lastmod>2026-08-17T01:27:13.915Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_windturbine_activity1</loc>
<lastmod>2026-08-17T01:27:13.458Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice_magnetic_activity1</loc>
<lastmod>2026-08-17T01:27:12.964Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_mutations_lesson01_activity1</loc>
<lastmod>2026-08-17T01:27:12.396Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice_surfactants_activity1</loc>
<lastmod>2026-08-17T01:27:11.773Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usu_safety_activity1</loc>
<lastmod>2026-08-17T01:27:11.324Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_space8_lesson01_activity2</loc>
<lastmod>2026-08-17T01:27:10.658Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_soil_solarization_lesson01_activity1</loc>
<lastmod>2026-08-17T01:27:10.040Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/gat_robots_lesson01_activity2</loc>
<lastmod>2026-08-17T01:27:09.222Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/gat_robots_lesson01_activity1</loc>
<lastmod>2026-08-17T01:27:08.296Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/gat_esr_test_activity1</loc>
<lastmod>2026-08-17T01:27:07.494Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airquality_lesson01_activity5</loc>
<lastmod>2026-08-17T01:27:06.310Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airquality_lesson01_activity4</loc>
<lastmod>2026-08-17T01:27:05.297Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airquality_lesson01_activity3</loc>
<lastmod>2026-08-17T01:27:04.527Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airquality_lesson01_activity2</loc>
<lastmod>2026-08-17T01:27:03.057Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airquality_lesson01_activity1</loc>
<lastmod>2026-08-17T01:27:02.071Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usm_surfactant_activity1</loc>
<lastmod>2026-08-17T01:27:01.426Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_derbytool_activity1</loc>
<lastmod>2026-08-17T01:27:00.722Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_carbonfiber_lesson01_activity1</loc>
<lastmod>2026-08-17T01:27:00.127Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson05_activity4</loc>
<lastmod>2026-08-17T01:26:59.130Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice_erruption_activity1</loc>
<lastmod>2026-08-17T01:26:58.401Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/gat_mirrors_activity1</loc>
<lastmod>2026-08-17T01:26:57.804Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_windpower_spanish_sprinkle</loc>
<lastmod>2026-08-06T14:46:35.782Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_strawbridges_spanish_sprinkle</loc>
<lastmod>2026-08-06T14:46:55.121Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_superspinners_spanish_sprinkle</loc>
<lastmod>2026-08-06T14:46:35.216Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice_biochar_activity1</loc>
<lastmod>2026-08-17T01:26:57.280Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_alloy_lesson01_activity1</loc>
<lastmod>2026-08-17T01:26:56.642Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_windpower_sprinkle</loc>
<lastmod>2026-08-06T14:46:46.539Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_superspinners_sprinkle</loc>
<lastmod>2026-08-06T14:46:46.978Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_strawbridges_sprinkle</loc>
<lastmod>2026-08-06T14:47:03.336Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usm_membranes_activity1</loc>
<lastmod>2026-08-17T01:26:56.095Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spaghettibridge_spanish_sprinkle</loc>
<lastmod>2026-08-06T14:46:51.666Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_towerinvestigation_spanish_sprinkle</loc>
<lastmod>2026-08-06T14:46:55.655Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_makealarm_spanish_sprinkle</loc>
<lastmod>2026-08-06T14:46:40.731Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_engrdrawings_spanish_sprinkle</loc>
<lastmod>2026-08-06T14:46:41.618Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spoolracers_spanish_sprinkle</loc>
<lastmod>2026-08-06T14:46:52.491Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_cleandrink_activity1</loc>
<lastmod>2026-08-17T01:26:55.623Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_hotchocolate_activity1</loc>
<lastmod>2026-08-17T01:26:55.078Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_sensor_lesson01_activity1</loc>
<lastmod>2026-08-17T01:26:54.392Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ewh_pump_activity1</loc>
<lastmod>2026-08-17T01:26:53.779Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/engineer_a_sneaker</loc>
<lastmod>2026-08-17T01:26:53.270Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson06_activity1</loc>
<lastmod>2026-08-17T01:26:52.595Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_pend_lesson01_activity1</loc>
<lastmod>2026-08-17T01:26:51.735Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_service_activity02</loc>
<lastmod>2026-08-17T01:26:50.903Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_engineering_in_reverse</loc>
<lastmod>2026-08-17T01:26:50.311Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_measurement_lesson01_activity2</loc>
<lastmod>2026-08-17T01:26:49.557Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_japan_activity1</loc>
<lastmod>2026-08-17T01:26:48.783Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_consenergy_rde_act</loc>
<lastmod>2026-08-11T19:17:11.964Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_platetectonics_activity1</loc>
<lastmod>2026-08-17T01:26:48.109Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_strongholds_activity1</loc>
<lastmod>2026-08-17T01:26:47.298Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_designingfordisaster_activity1</loc>
<lastmod>2026-08-17T01:26:46.577Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson07_activity2</loc>
<lastmod>2026-08-17T01:26:45.631Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson03_activity1</loc>
<lastmod>2026-08-17T01:26:45.009Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_convshoes_lesson01_activity1</loc>
<lastmod>2026-08-17T01:26:44.244Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_kite_activity1</loc>
<lastmod>2026-08-17T01:26:43.495Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_catapult_lesson01_activity1</loc>
<lastmod>2026-08-17T01:26:42.817Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/sneakers</loc>
<lastmod>2026-08-11T19:17:06.705Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_heartvalves_lesson01_activity1</loc>
<lastmod>2026-08-17T01:26:42.098Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_amusement_park_ride</loc>
<lastmod>2026-08-17T01:26:41.488Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_curiosity_lesson01_activity1</loc>
<lastmod>2026-08-17T02:18:03.642Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_heavy_activity1</loc>
<lastmod>2026-08-17T02:18:02.895Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_floppy_lesson02_activity1</loc>
<lastmod>2026-08-17T01:26:39.009Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_weather_lesson05_activity1</loc>
<lastmod>2026-08-17T01:26:37.495Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson06_activity1</loc>
<lastmod>2026-08-11T19:17:00.758Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_spag_act_joy</loc>
<lastmod>2026-08-06T15:29:00.007Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_kapablocks_activity1</loc>
<lastmod>2026-08-17T01:26:36.284Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/jhu_cnetworks_lesson02_activity1</loc>
<lastmod>2026-08-17T01:26:35.626Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_eggdrop_activity1</loc>
<lastmod>2026-08-17T01:26:34.735Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_heartbloodflow_act</loc>
<lastmod>2026-08-17T01:26:33.367Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_staticcrane_activity1</loc>
<lastmod>2026-08-17T01:26:32.706Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_coinsorter_activity1</loc>
<lastmod>2026-08-17T01:26:31.687Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/chair_design</loc>
<lastmod>2026-08-07T18:24:31.887Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/build_a_scale_model</loc>
<lastmod>2026-08-17T01:26:30.568Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_sailcars_activity1</loc>
<lastmod>2026-08-17T01:26:29.737Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_derby_activity1</loc>
<lastmod>2026-08-17T01:26:29.223Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_heattransfer_smary_act</loc>
<lastmod>2026-08-11T19:16:54.639Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/playground_sue</loc>
<lastmod>2026-08-11T19:16:53.559Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_straw_tower_activity1</loc>
<lastmod>2026-08-17T01:26:28.568Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/tower_investigation</loc>
<lastmod>2026-08-17T01:26:28.064Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/afterlife_sue</loc>
<lastmod>2026-08-06T15:26:25.796Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/able_sue</loc>
<lastmod>2026-08-17T01:26:27.161Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_lifescience_lesson03_activity1</loc>
<lastmod>2026-08-17T01:26:26.374Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_findingepicenters_activity1</loc>
<lastmod>2026-08-17T01:26:25.823Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_hybrid_design_activity4</loc>
<lastmod>2026-08-06T15:25:00.580Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson10_activity1</loc>
<lastmod>2026-08-17T01:26:24.798Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson10_activity1</loc>
<lastmod>2026-08-17T01:26:23.340Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_challenges_lesson02_activity2</loc>
<lastmod>2026-08-17T01:26:22.328Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simple_lesson06_activity1</loc>
<lastmod>2026-08-17T01:26:21.272Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_foodiron_music_act</loc>
<lastmod>2026-08-11T19:16:47.304Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_challenges_lesson02_activity3</loc>
<lastmod>2026-08-17T01:26:20.366Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_flyingtshirt_lesson01_activity1</loc>
<lastmod>2026-08-17T01:26:19.566Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_weather_lesson01_activity1</loc>
<lastmod>2026-08-17T01:26:18.270Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spoolracers_sprinkle</loc>
<lastmod>2026-08-06T14:47:04.800Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_towerinvestigation_sprinkle</loc>
<lastmod>2026-08-06T14:47:04.384Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_wheeling</loc>
<lastmod>2026-08-06T14:47:03.858Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_motor</loc>
<lastmod>2026-08-06T14:47:02.877Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spaghettibridge_sprinkle</loc>
<lastmod>2026-08-06T14:47:02.472Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_chromatography</loc>
<lastmod>2026-08-06T14:47:01.995Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_anemometer_sprinkle1</loc>
<lastmod>2026-08-06T14:47:01.536Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_sugarspill</loc>
<lastmod>2026-08-06T14:47:01.057Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_yogurtspeakers</loc>
<lastmod>2026-08-06T14:47:00.657Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_justbreathe</loc>
<lastmod>2026-08-06T14:47:00.220Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_catapult</loc>
<lastmod>2026-08-06T14:46:59.773Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_squeeze</loc>
<lastmod>2026-08-06T14:46:59.271Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_prosthetic</loc>
<lastmod>2026-08-06T14:46:58.837Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_lightyourway</loc>
<lastmod>2026-08-06T14:46:58.386Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_hovercraft</loc>
<lastmod>2026-08-06T14:46:57.953Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electromagnet_sprinkle1</loc>
<lastmod>2026-08-06T14:46:57.508Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/sugarspill_spanish</loc>
<lastmod>2026-08-06T14:46:57.069Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/lightyourway_spanish</loc>
<lastmod>2026-08-06T14:46:56.595Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/justbreathe_spanish</loc>
<lastmod>2026-08-06T14:46:56.089Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/electromagnet_spanish</loc>
<lastmod>2026-08-06T14:46:54.640Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/motor_spanish</loc>
<lastmod>2026-08-06T14:46:54.096Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/anemometer_spanish</loc>
<lastmod>2026-08-06T14:46:53.531Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/chromatography_spanish</loc>
<lastmod>2026-08-06T14:46:53.017Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/yogurtspeakers_spanish</loc>
<lastmod>2026-08-06T14:46:52.097Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/prosthetic_spanish</loc>
<lastmod>2026-08-06T14:46:51.175Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/catapult_spanish</loc>
<lastmod>2026-08-06T14:46:50.642Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/squeeze_spanish</loc>
<lastmod>2026-08-06T14:46:50.099Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rocket_sprinkle1</loc>
<lastmod>2026-08-06T14:46:49.659Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_clayboats</loc>
<lastmod>2026-08-06T14:46:49.200Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_creepysillyputty</loc>
<lastmod>2026-08-06T14:46:48.756Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_fancyfeet</loc>
<lastmod>2026-08-06T14:46:48.332Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_hangingaround</loc>
<lastmod>2026-08-06T14:46:47.883Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_conduct</loc>
<lastmod>2026-08-17T01:26:17.220Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_engrdrawings_sprinkle</loc>
<lastmod>2026-08-06T14:46:46.112Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_makealarm_sprinkle</loc>
<lastmod>2026-08-06T14:46:45.707Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_ptarmigan</loc>
<lastmod>2026-08-07T18:24:36.492Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_waterwheel</loc>
<lastmod>2026-08-06T14:46:44.833Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_pressure</loc>
<lastmod>2026-08-06T14:46:44.391Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_aquathrust</loc>
<lastmod>2026-08-06T14:46:43.958Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_catchwater</loc>
<lastmod>2026-08-06T14:46:43.523Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/hangingaround_spanish</loc>
<lastmod>2026-08-06T14:46:43.087Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/fancyfeet_spanish</loc>
<lastmod>2026-08-06T14:46:42.629Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/creepysillyputty_spanish</loc>
<lastmod>2026-08-06T14:46:42.070Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ptarmigan_spanish</loc>
<lastmod>2026-08-06T14:46:41.179Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/willitconduct_spanish</loc>
<lastmod>2026-08-17T01:26:16.758Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wheeling_spanish</loc>
<lastmod>2026-08-06T14:46:39.763Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rocket_spanish</loc>
<lastmod>2026-08-06T14:46:39.232Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/waterwheel_spanish</loc>
<lastmod>2026-08-06T14:46:38.776Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/pressure_spanish</loc>
<lastmod>2026-08-06T14:46:38.283Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/hovercraft_spanish</loc>
<lastmod>2026-08-06T14:46:37.781Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/clayboats_spanish</loc>
<lastmod>2026-08-06T14:46:37.318Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/catchthewater_spanish</loc>
<lastmod>2026-08-06T14:46:36.850Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/aquathrust_spanish</loc>
<lastmod>2026-08-06T14:46:36.354Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson04_activity2</loc>
<lastmod>2026-08-17T01:26:16.126Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_cellresp_mary_act</loc>
<lastmod>2026-08-06T15:35:03.397Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson09_activity3</loc>
<lastmod>2026-08-17T01:26:15.318Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson02_activity1</loc>
<lastmod>2026-08-17T01:26:14.453Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson02_activity2</loc>
<lastmod>2026-08-06T15:34:59.950Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson03_activity2</loc>
<lastmod>2026-08-06T15:34:59.340Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_brightidea_activity1</loc>
<lastmod>2026-08-17T01:26:13.753Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spect_activity7</loc>
<lastmod>2026-08-17T01:26:12.856Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst_feelstress_activity1</loc>
<lastmod>2026-08-17T01:26:11.948Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_circuits_and_ohm_activity1</loc>
<lastmod>2026-08-17T01:26:11.312Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_design_lesson01_activity1</loc>
<lastmod>2026-08-17T01:26:10.683Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_bug_lesson01_activity1</loc>
<lastmod>2026-08-17T02:18:01.769Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cmu_rube_activity1</loc>
<lastmod>2026-08-17T01:26:09.097Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_space8_lesson01_activity1</loc>
<lastmod>2026-08-17T01:26:08.169Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_crutches_activity</loc>
<lastmod>2026-08-17T01:26:07.569Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_rollercoaster_music_act</loc>
<lastmod>2026-08-17T01:26:06.948Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson04_activity1</loc>
<lastmod>2026-08-17T01:26:05.956Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_service_activity03</loc>
<lastmod>2026-08-17T01:26:05.015Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_service_activity01</loc>
<lastmod>2026-08-17T01:26:04.203Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson05_activity1</loc>
<lastmod>2026-08-17T01:26:02.977Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson05_activity1</loc>
<lastmod>2026-08-17T01:26:02.000Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_protect_activity1</loc>
<lastmod>2026-08-17T01:26:00.733Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/invent_a_backscratcher</loc>
<lastmod>2026-08-17T01:26:00.012Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_seismicw_lesson01_activity1</loc>
<lastmod>2026-08-17T01:25:59.431Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson08_activity3</loc>
<lastmod>2026-08-17T01:25:58.613Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rooftop_lesson01_activity1</loc>
<lastmod>2026-08-17T01:25:57.810Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson02_activity3</loc>
<lastmod>2026-08-11T19:16:26.342Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson05_activity1</loc>
<lastmod>2026-08-17T01:25:56.961Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_air_pollution_activity</loc>
<lastmod>2026-08-17T01:25:56.500Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_sun_lesson01_activity1</loc>
<lastmod>2026-08-06T15:33:53.138Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson04_activity1</loc>
<lastmod>2026-08-17T01:25:55.832Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simple_lesson04_activity1</loc>
<lastmod>2026-08-17T01:25:55.193Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson07_activity1</loc>
<lastmod>2026-08-06T15:33:50.019Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_sunflower_mary_act</loc>
<lastmod>2026-08-17T01:25:54.593Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_desal_lesson01_activity1</loc>
<lastmod>2026-08-17T01:25:53.857Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_biomimicry_activity5</loc>
<lastmod>2026-08-06T15:33:39.217Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_solar_lesson01_activity2</loc>
<lastmod>2026-08-17T01:25:53.076Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_brid_lesson01_activity1</loc>
<lastmod>2026-08-17T01:25:52.384Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson03_activity1</loc>
<lastmod>2026-08-17T01:25:51.734Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_gaitway_lesson01_activity1</loc>
<lastmod>2026-08-17T01:25:50.967Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_walk_lesson01_activity1</loc>
<lastmod>2026-08-17T01:25:50.356Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_magnetic_launcher_activity1</loc>
<lastmod>2026-08-17T01:25:49.854Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_ehd_thrusters_activity1</loc>
<lastmod>2026-08-17T01:25:49.370Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/utpa_perfectwaves_activity1</loc>
<lastmod>2026-08-17T01:25:48.899Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_dams_lesson05_activity1</loc>
<lastmod>2026-08-17T01:25:48.258Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_surg_lesson02_activity1</loc>
<lastmod>2026-08-17T01:25:47.668Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_dams_lesson07_activity1</loc>
<lastmod>2026-08-17T01:25:46.868Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson02_activity3</loc>
<lastmod>2026-08-06T15:33:06.462Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_balloons_lesson01_activity1</loc>
<lastmod>2026-08-17T01:25:46.283Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson04_activity3</loc>
<lastmod>2026-08-17T01:25:45.450Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/gat_visual_art_lesson01_activity1</loc>
<lastmod>2026-08-17T01:25:44.824Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_piezo_lesson01_activity1</loc>
<lastmod>2026-08-17T01:25:44.209Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_soundandlight_lesson8_activity1</loc>
<lastmod>2026-08-06T15:32:55.325Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_asteroid_lesson5_activity1_tg</loc>
<lastmod>2026-08-17T01:25:43.243Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity2_energy_conversion</loc>
<lastmod>2026-08-06T15:32:53.240Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst_environmental_lesson02_activity2</loc>
<lastmod>2026-08-17T01:25:42.455Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucla_metal_activity1</loc>
<lastmod>2026-08-17T01:25:41.856Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_surg_lesson03_activity1</loc>
<lastmod>2026-08-17T01:25:41.193Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_measurement_lesson01_activity1</loc>
<lastmod>2026-08-17T01:25:40.559Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson02_activity2</loc>
<lastmod>2026-08-06T15:32:18.133Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_microbes_lesson01_activity2</loc>
<lastmod>2026-08-11T19:16:19.973Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spect_activity1</loc>
<lastmod>2026-08-17T01:25:39.809Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson07_activity2</loc>
<lastmod>2026-08-17T01:25:39.017Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson09_activity2</loc>
<lastmod>2026-08-17T01:25:38.383Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_housing_lesson02_activity1</loc>
<lastmod>2026-08-17T01:25:37.719Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst_environmental_lesson03_activity2</loc>
<lastmod>2026-08-17T01:25:36.896Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_cells_lesson02_activity1</loc>
<lastmod>2026-08-17T01:25:36.172Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_surfactants_act4</loc>
<lastmod>2026-08-06T15:31:18.665Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson09_activity1</loc>
<lastmod>2026-08-06T15:31:16.621Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/jhu_cnetworks_lesson01_activity1</loc>
<lastmod>2026-08-11T19:16:16.401Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_dams_lesson03_activity1</loc>
<lastmod>2026-08-17T01:25:35.090Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_virus_mary_act</loc>
<lastmod>2026-08-17T01:25:34.514Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/cub_lifescience_lesson01_activity1</loc>
<lastmod>2026-08-17T01:25:33.730Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/utpa_breezy_activity1</loc>
<lastmod>2026-08-17T01:25:33.231Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson10_activity5</loc>
<lastmod>2026-08-06T15:31:10.937Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson04_activity1</loc>
<lastmod>2026-08-17T01:25:32.551Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_liftoff_lesson01_activity1</loc>
<lastmod>2026-08-17T01:25:31.927Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson01_activity2</loc>
<lastmod>2026-08-17T01:25:31.223Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_heat_activity</loc>
<lastmod>2026-08-17T01:25:30.756Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_crystals_lesson01_activity1</loc>
<lastmod>2026-08-17T01:25:30.131Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson05_activity1</loc>
<lastmod>2026-08-06T15:31:04.718Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_newton_lesson03_activity1</loc>
<lastmod>2026-08-17T01:25:29.206Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson03_activity1</loc>
<lastmod>2026-08-17T01:25:28.431Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_housing_lesson01_activity1</loc>
<lastmod>2026-08-17T01:25:27.716Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson04_activity1</loc>
<lastmod>2026-08-17T01:25:26.955Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_space8_lesson02_activity1</loc>
<lastmod>2026-08-07T18:24:40.278Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_mri_act_less_1</loc>
<lastmod>2026-08-11T19:16:13.106Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst_environmental_lesson03_activity1</loc>
<lastmod>2026-08-17T01:25:26.141Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_accelerometer_lesson02_activity1</loc>
<lastmod>2026-08-17T02:18:00.510Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_pveff_lesson02_activity1</loc>
<lastmod>2026-08-17T01:25:24.561Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/design_a_parachute</loc>
<lastmod>2026-08-17T01:25:23.945Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst_environmental_lesson02_activity3</loc>
<lastmod>2026-08-17T01:25:23.155Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_pveff_lesson01_activity1</loc>
<lastmod>2026-08-17T01:25:22.191Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ball_bounce_experiment</loc>
<lastmod>2026-08-17T01:25:21.542Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simp_machines_lesson03_activity1</loc>
<lastmod>2026-08-17T01:25:20.879Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson08_activity2</loc>
<lastmod>2026-08-17T01:25:20.160Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucla_superball_activity1</loc>
<lastmod>2026-08-06T15:30:50.452Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity3_energy_choices_game</loc>
<lastmod>2026-08-17T01:25:19.463Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_angularvelocity_activity1</loc>
<lastmod>2026-08-17T02:18:00.024Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mix_lesson2_activity1</loc>
<lastmod>2026-08-17T01:25:18.324Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity1_energy_intelligence</loc>
<lastmod>2026-08-17T01:25:17.520Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson04_activity2</loc>
<lastmod>2026-08-17T01:25:16.806Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson03_activity1</loc>
<lastmod>2026-08-06T15:30:43.340Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simp_machines_lesson02_activity1</loc>
<lastmod>2026-08-17T01:25:16.154Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_friction_smary_act</loc>
<lastmod>2026-08-17T01:25:15.535Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_egg_drop_activity1</loc>
<lastmod>2026-08-06T15:30:40.433Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity1_forms_states</loc>
<lastmod>2026-08-11T19:16:08.134Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity3_household_light_bulbs</loc>
<lastmod>2026-08-17T01:25:14.875Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_human_power_activity</loc>
<lastmod>2026-08-06T15:30:38.480Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_problem_solving_activity2</loc>
<lastmod>2026-08-06T15:30:37.844Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity2_energy_sources_research</loc>
<lastmod>2026-08-06T15:30:37.141Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity1_renewable</loc>
<lastmod>2026-08-17T01:25:14.213Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity1_efficiency_electromech</loc>
<lastmod>2026-08-06T15:30:35.817Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity3_energy_systems</loc>
<lastmod>2026-08-17T01:25:13.405Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity2_energy_carousel</loc>
<lastmod>2026-08-06T15:30:34.539Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity4_energy_perspectives</loc>
<lastmod>2026-08-06T15:30:33.974Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity2_efficiency_heating</loc>
<lastmod>2026-08-17T01:25:12.743Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity1_household_watt_meter</loc>
<lastmod>2026-08-17T01:25:12.094Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson06_activity3</loc>
<lastmod>2026-08-06T15:30:30.459Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_hospital_activity1</loc>
<lastmod>2026-08-17T01:25:11.173Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_sound_lesson02_activity1</loc>
<lastmod>2026-08-17T01:25:10.518Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson07_activity1</loc>
<lastmod>2026-08-17T01:25:09.800Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_soundandlight_lesson1_activity1</loc>
<lastmod>2026-08-17T01:25:09.170Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson01_activity1</loc>
<lastmod>2026-08-17T01:25:08.504Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson09_activity3</loc>
<lastmod>2026-08-17T01:25:07.676Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csu_polymer_lesson01_activity1</loc>
<lastmod>2026-08-17T01:25:06.968Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_empathy_activity4</loc>
<lastmod>2026-08-17T01:25:06.189Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_boom_activity1</loc>
<lastmod>2026-08-17T02:17:59.244Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucsb_robotics_activity1</loc>
<lastmod>2026-08-17T01:25:05.148Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_polymer_lesson01_activity1</loc>
<lastmod>2026-08-17T01:25:04.482Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_gravityfed_activity1</loc>
<lastmod>2026-08-17T01:25:03.850Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/insect_trap_activity</loc>
<lastmod>2026-08-06T15:30:18.416Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_sanfran_activity1</loc>
<lastmod>2026-08-17T01:25:03.383Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/earthquake_city</loc>
<lastmod>2026-08-17T01:25:02.934Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_density_mary_act</loc>
<lastmod>2026-08-17T01:25:02.303Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_yeast_mary_act</loc>
<lastmod>2026-08-06T15:30:16.034Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_hockey_music_act</loc>
<lastmod>2026-08-06T15:30:15.378Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_bycatchunit_musc_act2</loc>
<lastmod>2026-08-06T15:30:14.780Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/tetrahedral_kites</loc>
<lastmod>2026-08-17T01:25:01.652Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson05_activity2</loc>
<lastmod>2026-08-06T15:30:13.163Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_bycatchunit_musc_act</loc>
<lastmod>2026-08-11T19:16:03.329Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ewh_suitup_activity1</loc>
<lastmod>2026-08-17T01:25:01.177Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson01_activity1</loc>
<lastmod>2026-08-17T01:25:00.544Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_fluidmechanics_lesson02_activity1</loc>
<lastmod>2026-08-17T01:24:59.755Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/bicycle_helmet_activity</loc>
<lastmod>2026-08-06T15:30:07.703Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mars_lesson05_activity1</loc>
<lastmod>2026-08-17T01:24:58.919Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson05_activity1</loc>
<lastmod>2026-08-17T01:24:58.087Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_solarcity_activity1</loc>
<lastmod>2026-08-17T01:24:57.183Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simple_lesson01_activity1</loc>
<lastmod>2026-08-17T01:24:56.528Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/the_best_insulator</loc>
<lastmod>2026-08-17T01:24:56.057Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_intro_lesson01_activity1</loc>
<lastmod>2026-08-17T01:24:55.360Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_big_chill_activity1</loc>
<lastmod>2026-08-17T01:24:54.898Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_encoders_activity1</loc>
<lastmod>2026-08-17T02:17:58.655Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_power_activity1</loc>
<lastmod>2026-08-17T01:24:53.705Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_empathy_activity1</loc>
<lastmod>2026-08-17T01:24:53.051Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/gat_mixture_activity1</loc>
<lastmod>2026-08-17T01:24:52.440Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_obi_activity1</loc>
<lastmod>2026-08-17T01:24:51.909Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_zero_energy</loc>
<lastmod>2026-08-17T01:24:51.194Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_housing_lesson03_activity1</loc>
<lastmod>2026-08-17T01:24:50.480Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson05_activity3</loc>
<lastmod>2026-08-17T01:24:49.671Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson09_activity4</loc>
<lastmod>2026-08-06T15:29:49.277Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_probe_activity1</loc>
<lastmod>2026-08-17T01:24:48.838Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson07_activity3</loc>
<lastmod>2026-08-11T19:15:57.251Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_molecules_activity1</loc>
<lastmod>2026-08-17T01:24:48.349Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_photo_mary_act</loc>
<lastmod>2026-08-11T19:15:56.575Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simp_machines_lesson04_activity1</loc>
<lastmod>2026-08-06T15:29:46.345Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_beam_activity1</loc>
<lastmod>2026-08-17T01:24:47.880Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_graphing_activity1</loc>
<lastmod>2026-08-17T02:17:58.059Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/safety_sue</loc>
<lastmod>2026-08-17T01:24:46.934Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_trusses_lesson01_activity1</loc>
<lastmod>2026-08-17T01:24:45.981Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson06_activity1</loc>
<lastmod>2026-08-17T01:24:45.323Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_soundandlight_lesson5_activity1</loc>
<lastmod>2026-08-17T01:24:44.673Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/focus_on_fabrics</loc>
<lastmod>2026-08-06T15:29:33.410Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_computerprogram_lesson01_activity1</loc>
<lastmod>2026-08-17T01:24:44.019Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mag_lesson1_activity1</loc>
<lastmod>2026-08-17T01:24:43.377Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_organic_activity1</loc>
<lastmod>2026-08-06T15:29:31.248Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_dams_lesson08_activity1</loc>
<lastmod>2026-08-17T01:24:42.715Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_windturbine_activity1</loc>
<lastmod>2026-08-17T01:24:42.081Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_erosion_activity1</loc>
<lastmod>2026-08-17T01:24:41.216Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_asteroid_lesson1_activity1_tg</loc>
<lastmod>2026-08-17T01:24:39.793Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson02_activity2</loc>
<lastmod>2026-08-17T01:24:38.953Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/make_an_alarm</loc>
<lastmod>2026-08-17T01:24:38.030Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson09_activity1</loc>
<lastmod>2026-08-17T01:24:37.153Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_genetics_mary_act</loc>
<lastmod>2026-08-17T01:24:36.534Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson05_activity1</loc>
<lastmod>2026-08-11T19:15:50.915Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson06_activity2</loc>
<lastmod>2026-08-17T01:24:35.862Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/make_recycled_paper</loc>
<lastmod>2026-08-17T01:24:35.412Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/utpa_sensors_activity1</loc>
<lastmod>2026-08-17T01:24:34.917Z</lastmod>
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<url>
<loc>https://www.teachengineering.org/activities/usf_stormwater_lesson02_activity4</loc>
<lastmod>2026-08-17T01:24:34.068Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_stormwater_lesson01_activity1</loc>
<lastmod>2026-08-06T15:29:12.397Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_flocculant_activity01</loc>
<lastmod>2026-08-11T19:15:49.155Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usc_forcesgraphing</loc>
<lastmod>2026-08-06T15:29:11.240Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_sensorswork_lesson06_activity1</loc>
<lastmod>2026-08-17T01:24:32.998Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_sensorswork_lesson05_activity1</loc>
<lastmod>2026-08-17T01:24:31.932Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_sensorswork_lesson04_activity1</loc>
<lastmod>2026-08-17T01:24:30.870Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_sensorswork_lesson03_activity1</loc>
<lastmod>2026-08-17T01:24:29.790Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_ourbodies_lesson03_activity5</loc>
<lastmod>2026-08-17T01:24:28.759Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_ourbodies_lesson02_activity3</loc>
<lastmod>2026-08-17T01:24:27.909Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_ourbodies_lesson02_activity2</loc>
<lastmod>2026-08-17T01:24:26.988Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_ourbodies_lesson01_activity1</loc>
<lastmod>2026-08-17T01:24:26.056Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_dig_mapping_activity1</loc>
<lastmod>2026-08-17T01:24:25.265Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_genetic_lesson01_activity1</loc>
<lastmod>2026-08-17T01:24:24.603Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_decomposers_mary_act</loc>
<lastmod>2026-08-11T19:15:41.359Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_sound_lesson01_activity1</loc>
<lastmod>2026-08-17T01:24:23.984Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_hybrid_design_activity2</loc>
<lastmod>2026-08-17T01:24:23.229Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_cleanupmess_act4</loc>
<lastmod>2026-08-11T19:15:40.561Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mining_activity1</loc>
<lastmod>2026-08-17T01:24:22.744Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson01_activity2</loc>
<lastmod>2026-08-17T01:24:22.119Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/njit_paper_activity1</loc>
<lastmod>2026-08-17T01:24:21.652Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spect_activity2</loc>
<lastmod>2026-08-17T01:24:20.989Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_biorecycling_lesson01_activity1</loc>
<lastmod>2026-08-17T01:24:20.351Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson06_activity2</loc>
<lastmod>2026-08-17T01:24:19.695Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usc_speakers_activity1</loc>
<lastmod>2026-08-11T19:15:39.855Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mars_lesson04_activity1</loc>
<lastmod>2026-08-17T01:24:19.071Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson02_activity3</loc>
<lastmod>2026-08-17T01:24:18.442Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson08_activity2</loc>
<lastmod>2026-08-17T01:24:17.807Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_surg_lesson01_activity2</loc>
<lastmod>2026-08-17T01:24:16.766Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_creative_activity1</loc>
<lastmod>2026-08-17T01:24:15.804Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_sailcars_activity1</loc>
<lastmod>2026-08-17T01:24:15.038Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/design_a_recycling_game</loc>
<lastmod>2026-08-17T01:24:14.007Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson05_activity2</loc>
<lastmod>2026-08-17T01:24:13.377Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_challenges_lesson02_activity4</loc>
<lastmod>2026-08-17T02:17:56.863Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_code_sue</loc>
<lastmod>2026-08-06T15:28:47.101Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_solarcar_tech_act</loc>
<lastmod>2026-08-11T19:15:36.648Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cla_activity2_household_audit</loc>
<lastmod>2026-08-06T15:28:45.770Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson2_activity1</loc>
<lastmod>2026-08-17T01:24:12.038Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson06_activity1</loc>
<lastmod>2026-08-17T01:24:11.286Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson04_activity3</loc>
<lastmod>2026-08-17T01:24:10.491Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson01_activity2</loc>
<lastmod>2026-08-17T01:24:09.818Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson04_activity1</loc>
<lastmod>2026-08-17T01:24:09.192Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson5_activity1</loc>
<lastmod>2026-08-17T01:24:08.448Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson01_activity2</loc>
<lastmod>2026-08-17T01:24:07.642Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson08_activity4</loc>
<lastmod>2026-08-17T01:24:06.973Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson02_activity1</loc>
<lastmod>2026-08-06T15:28:39.381Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_weather_lesson02_activity1</loc>
<lastmod>2026-08-17T01:24:06.378Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usu_ethics_activity1</loc>
<lastmod>2026-08-17T01:24:05.763Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_filtering_lesson01_activity1</loc>
<lastmod>2026-08-11T19:15:33.529Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/which_roof_is_tops</loc>
<lastmod>2026-08-17T01:24:05.282Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson06_activity1</loc>
<lastmod>2026-08-17T01:24:04.610Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mars_lesson03_activity1</loc>
<lastmod>2026-08-17T01:24:03.891Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_design_lesson01_activity2</loc>
<lastmod>2026-08-17T01:24:03.175Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson08_activity1</loc>
<lastmod>2026-08-17T01:24:02.541Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_heat_lesson01_activity1</loc>
<lastmod>2026-08-17T01:24:01.962Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_accelerometer_lesson01_activity1</loc>
<lastmod>2026-08-17T01:24:01.181Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_bio_lesson03_activity1</loc>
<lastmod>2026-08-17T01:24:00.402Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_trebuchet_activity1</loc>
<lastmod>2026-08-17T01:23:59.934Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson02_activity2</loc>
<lastmod>2026-08-17T01:23:59.283Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_bones_lesson01_activity2</loc>
<lastmod>2026-08-17T01:23:58.564Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_bones_lesson01_activity1</loc>
<lastmod>2026-08-17T01:23:57.780Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson09_activity1</loc>
<lastmod>2026-08-17T01:23:57.047Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_dams_lesson02_activity1</loc>
<lastmod>2026-08-17T01:23:56.413Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_getingear_activity1</loc>
<lastmod>2026-08-17T02:17:56.391Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_light_activity1</loc>
<lastmod>2026-08-17T02:17:55.891Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umn_pneumatics_activity01</loc>
<lastmod>2026-08-17T01:23:54.941Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uva_eardevice_act</loc>
<lastmod>2026-08-17T01:23:54.239Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst_environmental_lesson02_activity1</loc>
<lastmod>2026-08-17T01:23:53.589Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson01_activity2</loc>
<lastmod>2026-08-17T01:23:52.959Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson05_activity2</loc>
<lastmod>2026-08-17T01:23:52.285Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson02_activity2</loc>
<lastmod>2026-08-17T01:23:51.614Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson5_activity2</loc>
<lastmod>2026-08-17T01:23:50.955Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_detdrawings_lesson01_activity1</loc>
<lastmod>2026-08-17T02:17:55.189Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_solarenergy_lesson01_activity1</loc>
<lastmod>2026-08-17T01:23:49.495Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_dimension_tech_act</loc>
<lastmod>2026-08-17T01:23:48.745Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_valvedesign_tech_act</loc>
<lastmod>2026-08-17T01:23:47.979Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_feelbetter_lesson02_activity_02</loc>
<lastmod>2026-08-06T15:28:14.826Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucla_lava_activity01</loc>
<lastmod>2026-08-17T01:23:47.389Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_feelbetter_lesson01_activity01</loc>
<lastmod>2026-08-11T19:15:27.219Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_friction_smary_act2</loc>
<lastmod>2026-08-11T19:15:26.421Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson04_activity1</loc>
<lastmod>2026-08-17T01:23:46.504Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson06_activity1</loc>
<lastmod>2026-08-17T01:23:45.490Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson02_activity1</loc>
<lastmod>2026-08-17T01:23:44.835Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_creative_activity5</loc>
<lastmod>2026-08-17T01:23:44.055Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson05_activity1</loc>
<lastmod>2026-08-17T01:23:43.240Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_housing_lesson01_activity2</loc>
<lastmod>2026-08-17T01:23:42.568Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson06_activity2</loc>
<lastmod>2026-08-17T01:23:41.922Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_troll_lesson02_activity1</loc>
<lastmod>2026-08-17T01:23:41.324Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_solaroven_tech_act</loc>
<lastmod>2026-08-11T19:15:22.569Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson05_activity3</loc>
<lastmod>2026-08-17T01:23:40.480Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson09_activity1</loc>
<lastmod>2026-08-17T01:23:39.717Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_hydraulic_arm_challenge</loc>
<lastmod>2026-08-17T01:23:39.262Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_intro_lesson03_activity1</loc>
<lastmod>2026-08-17T01:23:38.643Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson10_activity1</loc>
<lastmod>2026-08-06T15:28:01.701Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson04_activity1</loc>
<lastmod>2026-08-17T01:23:37.975Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_brid_lesson01_activity2</loc>
<lastmod>2026-08-06T15:28:00.436Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson01_activity1</loc>
<lastmod>2026-08-17T01:23:37.371Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_creative_activity2</loc>
<lastmod>2026-08-17T01:23:36.603Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_surfactants_act2</loc>
<lastmod>2026-08-17T01:23:35.860Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_matlsci_lesson01_activity1</loc>
<lastmod>2026-08-17T01:23:35.298Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson06_activity2</loc>
<lastmod>2026-08-17T01:23:34.520Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson06_activity1</loc>
<lastmod>2026-08-17T01:23:33.898Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson06_activity1</loc>
<lastmod>2026-08-17T01:23:33.209Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_sep_mixtures_activity1</loc>
<lastmod>2026-08-17T01:23:32.614Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_tower_tech_act</loc>
<lastmod>2026-08-06T15:27:51.347Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson04_activity3</loc>
<lastmod>2026-08-17T01:23:31.913Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uconn_gliders_activity1</loc>
<lastmod>2026-08-17T01:23:31.398Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson07_activity1</loc>
<lastmod>2026-08-17T01:23:30.754Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/bones_sue</loc>
<lastmod>2026-08-17T01:23:30.181Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_insulation_activity1</loc>
<lastmod>2026-08-17T01:23:29.699Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson03_activity2</loc>
<lastmod>2026-08-17T01:23:29.056Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_boat_mary_act</loc>
<lastmod>2026-08-17T01:23:28.253Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_art_lesson01_activity2</loc>
<lastmod>2026-08-07T18:24:51.807Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson02_activity1</loc>
<lastmod>2026-08-17T01:23:27.594Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_lifescience_lesson04_activity1</loc>
<lastmod>2026-08-06T15:27:44.702Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson03_activity1</loc>
<lastmod>2026-08-17T01:23:26.979Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_membrane_activity3</loc>
<lastmod>2026-08-17T01:23:26.337Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mars_lesson01_activity1</loc>
<lastmod>2026-08-17T01:23:25.694Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mag_lesson2_activity1</loc>
<lastmod>2026-08-17T01:23:25.070Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/colors_absorb_heat_better</loc>
<lastmod>2026-08-17T01:23:24.587Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_statesofmatter_activity1</loc>
<lastmod>2026-08-17T02:17:54.379Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/roofs_for_different_climates</loc>
<lastmod>2026-08-17T01:23:23.525Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_solar_lesson02_activity1</loc>
<lastmod>2026-08-17T01:23:22.877Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_housing_lesson05_activity1</loc>
<lastmod>2026-08-17T01:23:22.230Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rock_lesson03_activity1</loc>
<lastmod>2026-08-06T15:27:37.656Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rock_lesson02_activity1</loc>
<lastmod>2026-08-17T01:23:21.554Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson04_activity2</loc>
<lastmod>2026-08-06T15:27:36.336Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson04_activity2</loc>
<lastmod>2026-08-17T01:23:20.726Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simp_machines_lesson05_activity1</loc>
<lastmod>2026-08-11T19:15:17.716Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson06_activity2</loc>
<lastmod>2026-08-17T01:23:20.114Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson03_activity2</loc>
<lastmod>2026-08-17T01:23:19.463Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_fracture_lesson01_activity1</loc>
<lastmod>2026-08-17T01:23:18.069Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson02_activity1</loc>
<lastmod>2026-08-17T01:23:17.115Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_lorax_activity1</loc>
<lastmod>2026-08-17T01:23:16.647Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/water_filtration</loc>
<lastmod>2026-08-17T01:23:16.184Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/disassemble_a_click_pen</loc>
<lastmod>2026-08-17T01:23:15.738Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson01_activity1</loc>
<lastmod>2026-08-17T01:23:15.133Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson06_activity2</loc>
<lastmod>2026-08-06T15:27:28.089Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson10_activity1</loc>
<lastmod>2026-08-17T01:23:14.484Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_cells_lesson01_activity1</loc>
<lastmod>2026-08-17T01:23:13.842Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mix_lesson3_activity1</loc>
<lastmod>2026-08-17T01:23:13.246Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_permeability_activity1</loc>
<lastmod>2026-08-17T01:23:12.774Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_brid_lesson02_activity1</loc>
<lastmod>2026-08-17T01:23:12.126Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson04_activity1</loc>
<lastmod>2026-08-17T01:23:11.426Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/space_shelter</loc>
<lastmod>2026-08-17T01:23:10.912Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson01_activity1</loc>
<lastmod>2026-08-17T01:23:10.294Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_engrdrawings_activity01</loc>
<lastmod>2026-08-17T01:23:09.836Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_linear_activity1</loc>
<lastmod>2026-08-17T01:23:09.344Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson04_activity3</loc>
<lastmod>2026-08-17T01:23:08.659Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson01_activity1</loc>
<lastmod>2026-08-17T01:23:08.026Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_asteroid_lesson3_activity1_tg</loc>
<lastmod>2026-08-17T01:23:07.403Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_solar_lesson03_activity1</loc>
<lastmod>2026-08-11T19:15:14.499Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_bernoulli_lesson01_activity1</loc>
<lastmod>2026-08-17T02:17:53.398Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mix_lesson1_activity1</loc>
<lastmod>2026-08-17T01:23:05.969Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csu_reverse_activity1</loc>
<lastmod>2026-08-17T01:23:05.490Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_desal_lesson01_activity2</loc>
<lastmod>2026-08-17T01:23:04.778Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_latex_lesson02_activity1</loc>
<lastmod>2026-08-17T01:23:03.983Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_body_lesson01_activity1</loc>
<lastmod>2026-08-17T01:23:03.285Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rice_density_activity1</loc>
<lastmod>2026-08-17T01:23:02.685Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_housing_lesson04_activity1</loc>
<lastmod>2026-08-17T01:23:02.028Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson2_activity4</loc>
<lastmod>2026-08-17T01:23:01.375Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_creative_activity4</loc>
<lastmod>2026-08-17T01:23:00.568Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_eureka_activity</loc>
<lastmod>2026-08-17T01:22:59.922Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson05_activity1</loc>
<lastmod>2026-08-06T15:27:10.376Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson02_activity1</loc>
<lastmod>2026-08-17T01:22:59.299Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_lightbalance_activity1</loc>
<lastmod>2026-08-17T02:17:52.867Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_challenges_lesson01_activity1</loc>
<lastmod>2026-08-17T01:22:57.740Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_noise_activity1</loc>
<lastmod>2026-08-17T02:17:52.349Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_mmm_activity1</loc>
<lastmod>2026-08-17T02:17:51.881Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mars_lesson02_activity1</loc>
<lastmod>2026-08-06T15:27:06.734Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson09_activity2</loc>
<lastmod>2026-08-17T01:22:55.888Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson02_activity1</loc>
<lastmod>2026-08-17T01:22:55.152Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/test_load</loc>
<lastmod>2026-08-11T19:15:08.435Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson04_activity2</loc>
<lastmod>2026-08-17T01:22:54.486Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_frictionforce_activity1</loc>
<lastmod>2026-08-17T02:17:51.410Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson03_activity4</loc>
<lastmod>2026-08-17T01:22:53.328Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_rocket_lesson01_activity1</loc>
<lastmod>2026-08-17T01:22:52.766Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_bio_lesson05_activity1</loc>
<lastmod>2026-08-06T15:26:57.639Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson03_activity2</loc>
<lastmod>2026-08-17T01:22:51.984Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson04_activity1</loc>
<lastmod>2026-08-06T15:26:55.755Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_nanoparticles_lesson03_activity1</loc>
<lastmod>2026-08-17T01:22:51.228Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson08_activity1</loc>
<lastmod>2026-08-17T01:22:50.292Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_fluidmechanics_lesson01_activity1</loc>
<lastmod>2026-08-17T01:22:49.675Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_bio_lesson02_activity1</loc>
<lastmod>2026-08-17T01:22:48.835Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson01_activity1</loc>
<lastmod>2026-08-17T01:22:48.197Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_oxygen_hydrogen_activity1</loc>
<lastmod>2026-08-17T01:22:47.728Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_intro_lesson04_activity1</loc>
<lastmod>2026-08-17T01:22:47.044Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson05_activity3</loc>
<lastmod>2026-08-17T01:22:46.427Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson06_activity3</loc>
<lastmod>2026-08-17T01:22:45.799Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson01_activity4</loc>
<lastmod>2026-08-17T01:22:44.965Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_weather_lesson04_activity1</loc>
<lastmod>2026-08-17T01:22:44.170Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/picframe_joy_act</loc>
<lastmod>2026-08-17T01:22:43.686Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson03_activity1</loc>
<lastmod>2026-08-17T01:22:43.054Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson03_activity3</loc>
<lastmod>2026-08-17T01:22:42.438Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_bridge_activity1</loc>
<lastmod>2026-08-17T01:22:41.987Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_ptarmigan_activity1</loc>
<lastmod>2026-08-06T15:26:42.762Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson02_activity2</loc>
<lastmod>2026-08-06T15:26:40.943Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson05_activity2</loc>
<lastmod>2026-08-17T01:22:41.356Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_surg_lesson04_activity2</loc>
<lastmod>2026-08-17T01:22:40.697Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_cutting_through_soil</loc>
<lastmod>2026-08-17T01:22:40.094Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_energy_experts_activity1</loc>
<lastmod>2026-08-17T01:22:39.637Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_opslime_activity1</loc>
<lastmod>2026-08-17T01:22:39.182Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_bridge_activity1</loc>
<lastmod>2026-08-17T01:22:38.558Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/rube_goldberg_machine</loc>
<lastmod>2026-08-17T01:22:37.335Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/windchimes_sue</loc>
<lastmod>2026-08-17T01:22:36.592Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_birdhouse_act_joy</loc>
<lastmod>2026-08-06T15:26:35.225Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_lifescience_lesson03_activity2</loc>
<lastmod>2026-08-17T01:22:35.927Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_regionallocal_activity1</loc>
<lastmod>2026-08-17T01:22:35.326Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_smart_solar_activity1</loc>
<lastmod>2026-08-17T01:22:34.703Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_stresses_activity1</loc>
<lastmod>2026-08-17T01:22:34.080Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_curingcancer_activity1</loc>
<lastmod>2026-08-17T01:22:33.281Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_computerprogram_lesson04_activity1</loc>
<lastmod>2026-08-17T01:22:32.650Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/assistive_tech_sue</loc>
<lastmod>2026-08-06T15:26:30.633Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_computerprogram_lesson02_activity1</loc>
<lastmod>2026-08-17T01:22:31.983Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_creative_activity6</loc>
<lastmod>2026-08-17T01:22:31.183Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_hurricane_activity1</loc>
<lastmod>2026-08-17T02:17:50.735Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_rolling_blackouts</loc>
<lastmod>2026-08-17T01:22:29.856Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wimpy_radar_antenna</loc>
<lastmod>2026-08-17T01:22:29.226Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/utpa_gentle_activity1</loc>
<lastmod>2026-08-17T01:22:28.580Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_junit_lesson01_activity1</loc>
<lastmod>2026-08-17T01:22:27.956Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/stop_the_stretching</loc>
<lastmod>2026-08-17T01:22:27.182Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_asteroid_lesson7_activity1_tg</loc>
<lastmod>2026-08-17T01:22:26.444Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/squeeze_is_on</loc>
<lastmod>2026-08-17T01:22:25.732Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/time_challenge</loc>
<lastmod>2026-08-17T01:22:25.280Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/utpa_invisible_activity1</loc>
<lastmod>2026-08-17T01:22:24.791Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_mobile_mary_act</loc>
<lastmod>2026-08-17T01:22:24.055Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_balsa_tech_act</loc>
<lastmod>2026-08-17T01:22:23.311Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/a_house_for_me</loc>
<lastmod>2026-08-06T15:26:20.112Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/construct_an_aqueduct</loc>
<lastmod>2026-08-17T01:22:22.850Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/charlottes_web</loc>
<lastmod>2026-08-17T01:22:22.382Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_foodpackage_music_act</loc>
<lastmod>2026-08-17T01:22:21.816Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_carbon_lesson01_activity1</loc>
<lastmod>2026-08-17T01:22:20.770Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_drink_activity01</loc>
<lastmod>2026-08-17T01:22:20.256Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_computerprogram_lesson03_activity1</loc>
<lastmod>2026-08-17T01:22:19.622Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_deformation_activity1</loc>
<lastmod>2026-08-17T02:17:50.034Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_bridge_joy_act</loc>
<lastmod>2026-08-06T15:26:15.265Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_pveff_lesson04_activity1</loc>
<lastmod>2026-08-17T01:22:18.211Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_plainsight_lesson01_activity1</loc>
<lastmod>2026-08-17T01:22:17.522Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_sensory_toys_activity1</loc>
<lastmod>2026-08-17T01:22:16.869Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_ambulance_activity1</loc>
<lastmod>2026-08-17T01:22:16.343Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_drinkthat_activity1</loc>
<lastmod>2026-08-17T01:22:15.816Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_asteroid_lesson2_activity1_tg</loc>
<lastmod>2026-08-17T01:22:15.174Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_eyes_lesson01_activity1</loc>
<lastmod>2026-08-17T01:22:14.465Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_dig_mapping_activity3</loc>
<lastmod>2026-08-17T01:22:13.624Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_wristwatch_activity1</loc>
<lastmod>2026-08-17T01:22:13.116Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usu_fastfood_activity1</loc>
<lastmod>2026-08-17T01:22:12.645Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_waterqtnew_lesson01_activity1</loc>
<lastmod>2026-08-17T01:22:11.899Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/hydraulic_joy</loc>
<lastmod>2026-08-17T01:22:11.153Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_energypriorities_activity1</loc>
<lastmod>2026-08-17T01:22:10.700Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_powershool_activity1</loc>
<lastmod>2026-08-17T01:22:10.252Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_dna_lesson01_activity1</loc>
<lastmod>2026-08-17T01:22:09.671Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson03_activity2</loc>
<lastmod>2026-08-17T01:22:09.028Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rock_lesson01_activity1</loc>
<lastmod>2026-08-17T01:22:08.412Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_robotic_vision_activity2</loc>
<lastmod>2026-08-17T01:22:07.660Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_bungee_activity1</loc>
<lastmod>2026-08-17T01:22:07.167Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_locatingeq_activity01</loc>
<lastmod>2026-08-17T01:22:06.690Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_mouse_trap_activity1</loc>
<lastmod>2026-08-17T02:17:49.556Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_heartvalves_lesson01_activity2</loc>
<lastmod>2026-08-17T01:22:05.537Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_stormwater_lesson02_activity1</loc>
<lastmod>2026-08-17T01:22:04.745Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ksu_zooniverse_activity1</loc>
<lastmod>2026-08-17T01:22:04.088Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_pharma_lesson01_activity1</loc>
<lastmod>2026-08-17T01:22:03.514Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_energymusic_mem_act</loc>
<lastmod>2026-08-06T15:25:56.200Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson08_activity2</loc>
<lastmod>2026-08-11T19:14:47.263Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/portable_sundial</loc>
<lastmod>2026-08-17T01:22:02.881Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson09_activity2</loc>
<lastmod>2026-08-06T15:25:54.349Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_graphtheory_lesson01_activity2</loc>
<lastmod>2026-08-17T01:22:02.205Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_wizardry_activity1</loc>
<lastmod>2026-08-17T01:22:01.607Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_engineering_our_water_lesson1_activity1_tg</loc>
<lastmod>2026-08-06T15:25:52.635Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_biomimicry_activity6</loc>
<lastmod>2026-08-06T15:25:52.059Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_asteroid_lesson6_activity1_tg</loc>
<lastmod>2026-08-17T01:22:00.972Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_stormwater_lesson02_activity2</loc>
<lastmod>2026-08-17T01:22:00.341Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_stormwater_lesson02_activity3</loc>
<lastmod>2026-08-17T01:21:59.280Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_marine_musc_act2</loc>
<lastmod>2026-08-11T19:14:43.758Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_eenergy_mem_act</loc>
<lastmod>2026-08-06T15:25:48.531Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_surfacetensionunit_act3</loc>
<lastmod>2026-08-17T01:21:58.455Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/human_natural_sue</loc>
<lastmod>2026-08-11T19:14:42.219Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_graphtheory_lesson01_activity1</loc>
<lastmod>2026-08-17T01:21:57.616Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_soundandlight_lesson3_activity1</loc>
<lastmod>2026-08-17T01:21:56.858Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_heartvalves_lesson02_activity1</loc>
<lastmod>2026-08-17T01:21:56.065Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson08_activity1</loc>
<lastmod>2026-08-06T15:25:44.855Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_surfacetensionunit_act2a</loc>
<lastmod>2026-08-17T01:21:55.015Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_mri_act_less_2</loc>
<lastmod>2026-08-17T01:21:53.879Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_invisible_activity1</loc>
<lastmod>2026-08-17T01:21:53.266Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson04_activity2</loc>
<lastmod>2026-08-17T01:21:52.511Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_biomimicry_activity2</loc>
<lastmod>2026-08-17T01:21:51.875Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_redox_activity1</loc>
<lastmod>2026-08-17T01:21:51.389Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson02_activity2</loc>
<lastmod>2026-08-17T01:21:50.754Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_magic_lesson01_activity1</loc>
<lastmod>2026-08-17T01:21:50.163Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson03_activity2</loc>
<lastmod>2026-08-06T15:25:36.123Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_connection_lesson01_activity1</loc>
<lastmod>2026-08-17T01:21:49.583Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_tower_activity1</loc>
<lastmod>2026-08-06T15:25:34.939Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_powergen_tech_act</loc>
<lastmod>2026-08-06T15:25:34.323Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_circuit_lesson01_activity1</loc>
<lastmod>2026-08-17T01:21:48.798Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson02_activity1</loc>
<lastmod>2026-08-17T01:21:47.984Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_biomimicry_activity1</loc>
<lastmod>2026-08-06T15:25:31.899Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_dna_lesson02_activity1</loc>
<lastmod>2026-08-17T01:21:47.361Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_microbes_lesson01_activity1</loc>
<lastmod>2026-08-06T15:25:30.644Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_mri_act_less_8</loc>
<lastmod>2026-08-17T01:21:46.529Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson03_activity1</loc>
<lastmod>2026-08-17T01:21:45.620Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_traffic_lesson01_activity1</loc>
<lastmod>2026-08-17T01:21:44.834Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/hummol_joy_act</loc>
<lastmod>2026-08-06T15:25:27.813Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_heartvalves_lesson01_activity1</loc>
<lastmod>2026-08-17T01:21:44.109Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_robotic_vision_activity1</loc>
<lastmod>2026-08-17T01:21:43.299Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_surg_lesson01_activity1</loc>
<lastmod>2026-08-17T01:21:42.534Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_soundwaves_activity1</loc>
<lastmod>2026-08-17T01:21:42.037Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_dams_lesson01_activity1</loc>
<lastmod>2026-08-17T01:21:41.412Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson04_activity1</loc>
<lastmod>2026-08-06T15:25:23.420Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst_environmental_lesson01_activity1</loc>
<lastmod>2026-08-17T01:21:40.834Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simp_machines_lesson01_activity1</loc>
<lastmod>2026-08-17T01:21:40.078Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_bio_lesson01_activity1</loc>
<lastmod>2026-08-17T01:21:39.472Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_triangles_activity1</loc>
<lastmod>2026-08-17T02:17:48.630Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_watershed_lesson01_activity1</loc>
<lastmod>2026-08-17T01:21:38.175Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson04_activity4</loc>
<lastmod>2026-08-17T01:21:37.369Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_surfacetensionunit_act4</loc>
<lastmod>2026-08-17T01:21:36.603Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson05_activity2</loc>
<lastmod>2026-08-17T01:21:35.800Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson01_activity1</loc>
<lastmod>2026-08-06T15:25:16.477Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simple_lesson05_activity1</loc>
<lastmod>2026-08-17T01:21:35.154Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_phi_activity1</loc>
<lastmod>2026-08-17T01:21:34.578Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/design_weather_instruments</loc>
<lastmod>2026-08-17T01:21:34.002Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_biorecycling_lesson01_activity3</loc>
<lastmod>2026-08-17T01:21:33.381Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spect_activity8</loc>
<lastmod>2026-08-17T01:21:32.569Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_biomimicry_activity4</loc>
<lastmod>2026-08-06T15:25:12.100Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_sensing_activity1</loc>
<lastmod>2026-08-17T02:17:48.141Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_humanwatercycle_lesson01_activity1</loc>
<lastmod>2026-08-17T01:21:31.110Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_soundandlight_lesson4_activity1</loc>
<lastmod>2026-08-17T01:21:30.345Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_lighting_lesson01_activity1</loc>
<lastmod>2026-08-17T01:21:29.767Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/design_packing</loc>
<lastmod>2026-08-17T01:21:29.229Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_biorecycling_lesson01_activity2</loc>
<lastmod>2026-08-17T01:21:28.515Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_cleaning_robot_activity1</loc>
<lastmod>2026-08-17T02:17:47.354Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_retcoulter_act1</loc>
<lastmod>2026-08-17T01:21:26.978Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_fibonacci_activity1</loc>
<lastmod>2026-08-17T02:17:46.621Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_haptics_activity1</loc>
<lastmod>2026-08-17T02:17:45.758Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_biomimicry_activity1</loc>
<lastmod>2026-08-17T02:17:45.165Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_sensorswork_lesson02_activity1</loc>
<lastmod>2026-08-17T01:21:23.980Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_decimals_activity1</loc>
<lastmod>2026-08-17T02:17:44.538Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_activity1_battlebots</loc>
<lastmod>2026-08-17T01:21:22.713Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_matls_activity1</loc>
<lastmod>2026-08-17T01:21:22.256Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_robotic_perimeter_activity1</loc>
<lastmod>2026-08-17T02:17:44.063Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_pumpit_activity1</loc>
<lastmod>2026-08-17T01:21:21.264Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_weather_lesson03_activity1</loc>
<lastmod>2026-08-17T01:21:20.604Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cmu_fruit_activity1</loc>
<lastmod>2026-08-17T01:21:19.981Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_china_lesson03_activity1</loc>
<lastmod>2026-08-17T01:21:19.245Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_linear_eqn_act2_less5</loc>
<lastmod>2026-08-06T15:24:57.542Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_doesitwork_lesson01_activity1</loc>
<lastmod>2026-08-17T01:21:18.502Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_walk_lesson01_activity2</loc>
<lastmod>2026-08-17T01:21:17.836Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_troll_lesson04_activity1</loc>
<lastmod>2026-08-16T18:08:35.122Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_surgicaldevices_tech_act</loc>
<lastmod>2026-08-17T01:21:17.001Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/compare_fabric_materials</loc>
<lastmod>2026-08-17T01:21:16.425Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_soundandlight_lesson7_activity1</loc>
<lastmod>2026-08-06T15:24:53.892Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/touch_and_discover</loc>
<lastmod>2026-08-17T01:21:15.980Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_linear_eqn_act_less4</loc>
<lastmod>2026-08-17T01:21:15.233Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_engineering_our_water_lesson1_activity2_tg</loc>
<lastmod>2026-08-06T15:24:52.060Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_motion_activity1</loc>
<lastmod>2026-08-06T15:24:51.524Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ksu_pingus_activity1</loc>
<lastmod>2026-08-17T01:21:14.784Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_amazon_lesson2_activity1_tg</loc>
<lastmod>2026-08-06T15:24:50.493Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_energy_lesson03_activity1</loc>
<lastmod>2026-08-17T01:21:14.134Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/design_packing_that_works</loc>
<lastmod>2026-08-17T01:21:13.679Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_angular_activity1</loc>
<lastmod>2026-08-17T01:21:13.013Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_robotsandhumans_act1</loc>
<lastmod>2026-08-17T01:21:12.303Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_gears2_activity1</loc>
<lastmod>2026-08-17T02:17:43.578Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_measuring_activity1</loc>
<lastmod>2026-08-17T02:17:43.095Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_robotsandhumans_act2</loc>
<lastmod>2026-08-17T01:21:10.623Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_bioniceye_activity1</loc>
<lastmod>2026-08-17T02:17:42.584Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_empathy_activity3</loc>
<lastmod>2026-08-17T01:21:09.309Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_dig_mapping_activity5</loc>
<lastmod>2026-08-06T15:24:44.210Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_dig_mapping_activity6</loc>
<lastmod>2026-08-17T01:21:08.406Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_handheld_lesson01_activity1</loc>
<lastmod>2026-08-17T01:21:07.724Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_dig_mapping_activity2</loc>
<lastmod>2026-08-17T01:21:06.975Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson05_activity1</loc>
<lastmod>2026-08-17T01:21:06.137Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_oddsofcancer_lesson02_activity1</loc>
<lastmod>2026-08-17T01:21:05.386Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_qandq_activity1</loc>
<lastmod>2026-08-17T01:21:04.806Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_nano_lesson02_activity4</loc>
<lastmod>2026-08-17T01:21:04.067Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_nano_lesson02_activity2</loc>
<lastmod>2026-08-17T01:21:03.282Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_mri_act_less_6</loc>
<lastmod>2026-08-17T01:21:02.447Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson10_activity4</loc>
<lastmod>2026-08-17T01:21:01.808Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson10_activity2</loc>
<lastmod>2026-08-17T01:21:01.164Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simple_lesson02_activity1</loc>
<lastmod>2026-08-17T01:21:00.526Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spect_activity3</loc>
<lastmod>2026-08-17T01:20:59.777Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson06_activity1</loc>
<lastmod>2026-08-06T15:24:34.705Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_avida_lesson01_activity1</loc>
<lastmod>2026-08-17T01:20:59.011Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson03_activity1</loc>
<lastmod>2026-08-06T15:24:33.482Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_lending_hand_activity1</loc>
<lastmod>2026-08-17T01:20:58.105Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_music_choi_act</loc>
<lastmod>2026-08-17T01:20:57.425Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_cancer_activity3</loc>
<lastmod>2026-08-17T01:20:56.677Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson07_activity1</loc>
<lastmod>2026-08-17T01:20:56.043Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_penny_activity1</loc>
<lastmod>2026-08-17T01:20:55.565Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_neworleans_activity1</loc>
<lastmod>2026-08-17T01:20:55.091Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_landfill_music_act</loc>
<lastmod>2026-08-06T15:24:28.992Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_skeletal_system_activity2</loc>
<lastmod>2026-08-17T01:20:54.423Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_packaging_materials</loc>
<lastmod>2026-08-06T15:24:27.771Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_bmd_activity1</loc>
<lastmod>2026-08-06T15:24:27.215Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_claw_activity1</loc>
<lastmod>2026-08-17T01:20:53.970Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_robotic_vision_activity3</loc>
<lastmod>2026-08-17T01:20:53.351Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_oddsofcancer_lesson04_activity1</loc>
<lastmod>2026-08-17T01:20:52.728Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_traffic_activity1</loc>
<lastmod>2026-08-06T15:24:24.368Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_membrane_activity1</loc>
<lastmod>2026-08-17T01:20:52.133Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spect_activity6</loc>
<lastmod>2026-08-17T01:20:51.377Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_biosensors_lesson01_activity1</loc>
<lastmod>2026-08-17T01:20:50.501Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_membrane_activity4</loc>
<lastmod>2026-08-17T01:20:49.786Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_dig_mapping_activity4</loc>
<lastmod>2026-08-17T01:20:49.131Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_oddsofcancer_lesson03_activity1</loc>
<lastmod>2026-08-17T01:20:48.446Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_skeletal_system_activity3</loc>
<lastmod>2026-08-06T15:24:17.808Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_python_lesson01_activity1</loc>
<lastmod>2026-08-17T01:20:47.678Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_sandpwaves_activity1</loc>
<lastmod>2026-08-17T01:20:47.164Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_population_activity1</loc>
<lastmod>2026-08-17T01:20:46.676Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_hybrid_design_activity3</loc>
<lastmod>2026-08-11T19:14:04.842Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson02_activity1</loc>
<lastmod>2026-08-11T19:14:04.035Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_life_lesson01_activity1</loc>
<lastmod>2026-08-17T01:20:46.070Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_nano_lesson02_activity3</loc>
<lastmod>2026-08-17T01:20:45.398Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rock_lesson04_activity1</loc>
<lastmod>2026-08-17T01:20:44.751Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson05_activity2</loc>
<lastmod>2026-08-17T01:20:44.080Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_cancer_activity2</loc>
<lastmod>2026-08-17T01:20:43.388Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_energy_lesson01_activity1</loc>
<lastmod>2026-08-17T01:20:42.667Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_float_mary_act</loc>
<lastmod>2026-08-17T01:20:41.782Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_solar_lesson07_activity1</loc>
<lastmod>2026-08-17T01:20:40.957Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_magnets_activity1</loc>
<lastmod>2026-08-17T01:20:40.499Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_swing_lesson01_activity1</loc>
<lastmod>2026-08-17T02:17:41.784Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_asteroid_lesson4_activity1_tg</loc>
<lastmod>2026-08-17T01:20:39.141Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_appinventor_lesson01_activity1</loc>
<lastmod>2026-08-17T01:20:38.376Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_neuron_lesson01_activity1</loc>
<lastmod>2026-08-17T01:20:37.780Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_empathy_activity2</loc>
<lastmod>2026-08-17T01:20:37.097Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson1_activity1</loc>
<lastmod>2026-08-06T15:24:04.415Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson09_activity1</loc>
<lastmod>2026-08-17T01:20:36.452Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_sep_mixtures_activity2</loc>
<lastmod>2026-08-06T15:24:02.259Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson04_activity2</loc>
<lastmod>2026-08-06T15:24:01.593Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_weather_lesson06_activity1</loc>
<lastmod>2026-08-17T01:20:35.851Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_space8_lesson03_activity1</loc>
<lastmod>2026-08-17T01:20:35.095Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_creative_activity3</loc>
<lastmod>2026-08-17T01:20:34.346Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_surfactants_act3</loc>
<lastmod>2026-08-06T15:23:59.091Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_surfactants_act1</loc>
<lastmod>2026-08-06T15:23:58.676Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_projectile_activity1</loc>
<lastmod>2026-08-17T01:20:33.767Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_howcold_activity1</loc>
<lastmod>2026-08-06T15:23:56.814Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson08_activity1</loc>
<lastmod>2026-08-06T15:23:56.157Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson05_activity3</loc>
<lastmod>2026-08-17T01:20:32.866Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_lifescience_lesson02_activity1</loc>
<lastmod>2026-08-17T01:20:32.251Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_maxwell_lesson01_activity1</loc>
<lastmod>2026-08-17T01:20:31.563Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson02_activity1</loc>
<lastmod>2026-08-17T01:20:30.779Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson01_activity2</loc>
<lastmod>2026-08-06T15:23:50.677Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_heaveho_music_act</loc>
<lastmod>2026-08-06T15:23:50.088Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson05_activity1</loc>
<lastmod>2026-08-17T01:20:30.155Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_viking_ship_lesson01</loc>
<lastmod>2026-08-17T01:20:29.664Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson03_activity1</loc>
<lastmod>2026-08-17T01:20:28.991Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_amazon_lesson5_activity1_tg</loc>
<lastmod>2026-08-17T01:20:28.387Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_soundandlight_lesson2_activity1</loc>
<lastmod>2026-08-06T15:23:46.893Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson07_activity1</loc>
<lastmod>2026-08-06T15:23:46.204Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_soundandlight_lesson6_activity1</loc>
<lastmod>2026-08-17T01:20:27.794Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_bacteria_activity1</loc>
<lastmod>2026-08-17T01:20:27.320Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_concentration_activity1</loc>
<lastmod>2026-08-17T01:20:26.842Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson01_activity1</loc>
<lastmod>2026-08-17T01:20:26.139Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mag_lesson2_activity2</loc>
<lastmod>2026-08-17T01:20:25.482Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson03_activity1</loc>
<lastmod>2026-08-06T15:23:40.305Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson07_activity1</loc>
<lastmod>2026-08-17T01:20:24.728Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson10_activity1</loc>
<lastmod>2026-08-06T15:23:39.030Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_puttingrobots_activity1</loc>
<lastmod>2026-08-17T02:17:40.979Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson06_activity1</loc>
<lastmod>2026-08-06T15:23:37.933Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mars_lesson06_activity1</loc>
<lastmod>2026-08-17T01:20:23.490Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson01_activity3</loc>
<lastmod>2026-08-11T19:13:54.437Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_art_lesson01_activity1</loc>
<lastmod>2026-08-17T01:20:22.875Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_drops_mary_act</loc>
<lastmod>2026-08-17T01:20:22.288Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_nanoparticles_lesson02_activity2</loc>
<lastmod>2026-08-17T01:20:21.382Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_lesson8_activity1_tg</loc>
<lastmod>2026-08-06T15:23:34.089Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_amradio_tech_act</loc>
<lastmod>2026-08-06T15:23:33.511Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_flow_activity1</loc>
<lastmod>2026-08-17T01:20:20.809Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_linear_eqn_act_less2</loc>
<lastmod>2026-08-17T01:20:19.818Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson05_activity3</loc>
<lastmod>2026-08-06T15:23:31.586Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_pirates_lesson01_activity1</loc>
<lastmod>2026-08-17T01:20:19.205Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson09_activity2</loc>
<lastmod>2026-08-06T15:23:30.258Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson01_activity2</loc>
<lastmod>2026-08-17T01:20:18.518Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_maze_joy_act</loc>
<lastmod>2026-08-06T15:23:28.522Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_surfacetensionunit_act1</loc>
<lastmod>2026-08-17T01:20:17.920Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_gears_activity1</loc>
<lastmod>2026-08-17T02:17:40.436Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_unitconv_activity1</loc>
<lastmod>2026-08-17T01:20:16.793Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_elevators_activity1</loc>
<lastmod>2026-08-17T02:16:46.453Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_pi_activity1</loc>
<lastmod>2026-08-17T01:20:15.569Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_farmland_activity1</loc>
<lastmod>2026-08-17T01:20:15.103Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_robots_act</loc>
<lastmod>2026-08-17T01:20:14.455Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_measuringp_activity1</loc>
<lastmod>2026-08-17T01:20:13.890Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_sensorswork_lesson01_activity1</loc>
<lastmod>2026-08-17T01:20:13.101Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_rockps_activity1</loc>
<lastmod>2026-08-17T02:16:45.844Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_robotsandhumans_act4</loc>
<lastmod>2026-08-17T01:20:11.788Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_fat_activity1</loc>
<lastmod>2026-08-17T02:16:45.346Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_boxes_mary_act</loc>
<lastmod>2026-08-17T01:20:10.305Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson06_activity1</loc>
<lastmod>2026-08-06T15:23:19.870Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_diffraction_activity1</loc>
<lastmod>2026-08-17T01:20:09.831Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_milk_activity1</loc>
<lastmod>2026-08-17T01:20:09.365Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson04_activity5</loc>
<lastmod>2026-08-17T01:20:08.746Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson04_activity2</loc>
<lastmod>2026-08-17T01:20:07.922Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson04_activity1</loc>
<lastmod>2026-08-06T15:23:17.025Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson06_activity2</loc>
<lastmod>2026-08-17T01:20:07.146Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson01_activity2</loc>
<lastmod>2026-08-17T01:20:06.481Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simple_lesson03_activity1</loc>
<lastmod>2026-08-17T01:20:05.853Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson07_activity3</loc>
<lastmod>2026-08-17T01:20:05.214Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_tall_mary_act</loc>
<lastmod>2026-08-06T15:23:13.715Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_simple_lesson01_activity2</loc>
<lastmod>2026-08-17T01:20:04.597Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson09_activity3</loc>
<lastmod>2026-08-17T01:20:03.866Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson08_activity2</loc>
<lastmod>2026-08-17T01:20:03.072Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson07_activity2</loc>
<lastmod>2026-08-06T15:23:10.814Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson05_activity3</loc>
<lastmod>2026-08-17T01:20:02.458Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson01_activity3</loc>
<lastmod>2026-08-06T15:23:09.517Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_train_activity1</loc>
<lastmod>2026-08-17T01:20:01.985Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson02_activity2</loc>
<lastmod>2026-08-17T01:20:01.377Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson01_activity1</loc>
<lastmod>2026-08-17T01:20:00.737Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson02_activity2</loc>
<lastmod>2026-08-17T01:20:00.026Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_faucets_lesson1_activity1</loc>
<lastmod>2026-08-17T01:19:59.408Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_feet_activity1</loc>
<lastmod>2026-08-17T01:19:58.939Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_gps_lesson01_activity1</loc>
<lastmod>2026-08-17T01:19:58.369Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_gatorade_activity1</loc>
<lastmod>2026-08-17T01:19:57.785Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_surg_lesson04_activity1</loc>
<lastmod>2026-08-17T01:19:56.983Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_cooling_activity1</loc>
<lastmod>2026-08-17T02:16:44.689Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_avida2_activity</loc>
<lastmod>2026-08-17T01:19:55.551Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uno_doyousee_lesson01_activity1</loc>
<lastmod>2026-08-17T01:19:54.827Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umn_shock_activity1</loc>
<lastmod>2026-08-17T01:19:54.369Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson08_activity3</loc>
<lastmod>2026-08-17T01:19:53.723Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_drink_lesson01_activity1</loc>
<lastmod>2026-08-17T01:19:53.166Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_marine_musc_act</loc>
<lastmod>2026-08-17T01:19:52.430Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_soil_activity1</loc>
<lastmod>2026-08-17T01:19:51.822Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_intro_lesson06_activity1</loc>
<lastmod>2026-08-17T01:19:50.926Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_cleanupmess_act1</loc>
<lastmod>2026-08-17T01:19:50.356Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_troll_lesson03_activity1</loc>
<lastmod>2026-08-17T01:19:49.701Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_intro_lesson05_activity1</loc>
<lastmod>2026-08-06T15:22:55.459Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/gat_surface_tension_activity1</loc>
<lastmod>2026-08-17T01:19:49.076Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson03_activity1</loc>
<lastmod>2026-08-06T15:22:54.277Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spect_activity4</loc>
<lastmod>2026-08-17T01:19:48.065Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_bmd_activity3</loc>
<lastmod>2026-08-17T01:19:47.114Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_hello_activity</loc>
<lastmod>2026-08-17T01:19:46.633Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson05_activity1</loc>
<lastmod>2026-08-17T01:19:46.015Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson06_activity3</loc>
<lastmod>2026-08-06T15:22:50.856Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_friction_smary_act3</loc>
<lastmod>2026-08-17T01:19:45.282Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mobile_sue</loc>
<lastmod>2026-08-06T15:22:49.621Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_bmd_activity2</loc>
<lastmod>2026-08-17T01:19:44.654Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_perm_usman_act</loc>
<lastmod>2026-08-06T15:22:48.287Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson01_activity1</loc>
<lastmod>2026-08-06T15:22:47.647Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uva_pump_bme0607_act</loc>
<lastmod>2026-08-17T01:19:43.748Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson05_activity2</loc>
<lastmod>2026-08-06T15:22:46.387Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_spect_activity5</loc>
<lastmod>2026-08-11T19:13:37.908Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson04_activity3</loc>
<lastmod>2026-08-17T01:19:42.980Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/mis_avida_lesson01_activity2</loc>
<lastmod>2026-08-17T01:19:42.277Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson2_activity2</loc>
<lastmod>2026-08-17T01:19:41.354Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson08_activity2</loc>
<lastmod>2026-08-06T15:22:42.816Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson10_activity2</loc>
<lastmod>2026-08-06T15:22:41.488Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson03_activity2</loc>
<lastmod>2026-08-06T15:22:40.900Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_flow_activity2</loc>
<lastmod>2026-08-17T01:19:40.757Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson3_activity1</loc>
<lastmod>2026-08-07T18:25:04.858Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_aerogel_lesson01_activity1</loc>
<lastmod>2026-08-17T01:19:40.062Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_lunar_muscle_act</loc>
<lastmod>2026-08-17T01:19:39.296Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_parallel_activity1</loc>
<lastmod>2026-08-17T01:19:38.706Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_pushpull_activity1</loc>
<lastmod>2026-08-17T01:19:38.220Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_working_activity1</loc>
<lastmod>2026-08-17T01:19:37.734Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson03_activity2</loc>
<lastmod>2026-08-17T01:19:36.970Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson06_activity3</loc>
<lastmod>2026-08-17T01:19:36.325Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson05_activity1</loc>
<lastmod>2026-08-17T01:19:35.514Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_taste_mary_act</loc>
<lastmod>2026-08-17T01:19:34.936Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_pulleys_activity1</loc>
<lastmod>2026-08-17T01:19:34.461Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_foucault_activity1</loc>
<lastmod>2026-08-17T02:16:43.973Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_accuracy_activity1</loc>
<lastmod>2026-08-17T01:19:33.506Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_robotwheels_activity1</loc>
<lastmod>2026-08-17T01:19:33.027Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_montecarlo_activity1</loc>
<lastmod>2026-08-17T02:16:43.429Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_speedbot_activity1</loc>
<lastmod>2026-08-17T02:16:42.908Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_challenges_lesson02_activity1</loc>
<lastmod>2026-08-17T01:19:31.229Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_springforce_activity1</loc>
<lastmod>2026-08-17T01:19:30.584Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_roboclock_activity1</loc>
<lastmod>2026-08-17T02:16:42.394Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_ultrasound</loc>
<lastmod>2026-08-17T02:16:41.797Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_carpotential_activity1</loc>
<lastmod>2026-08-17T01:19:29.126Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_robotgo_activity1</loc>
<lastmod>2026-08-17T01:19:28.662Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_accelerometer_activity1</loc>
<lastmod>2026-08-17T01:19:28.184Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_seesaw_activity1</loc>
<lastmod>2026-08-17T01:19:27.691Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_arctic_activity1</loc>
<lastmod>2026-08-17T01:19:27.191Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_linear_eqn_act1_less5</loc>
<lastmod>2026-08-17T01:19:26.547Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_nanoparticles_lesson01_activity1</loc>
<lastmod>2026-08-17T01:19:25.932Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_surfacetensionunit_act2b</loc>
<lastmod>2026-08-17T01:19:25.131Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson02_activity3</loc>
<lastmod>2026-08-17T01:19:24.487Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucla_clots_lesson01_activity1</loc>
<lastmod>2026-08-17T01:19:23.752Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_hybrid_design_activity1</loc>
<lastmod>2026-08-17T01:19:22.949Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson03_activity2</loc>
<lastmod>2026-08-17T01:19:22.331Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/pur_fluidpower_act</loc>
<lastmod>2026-08-17T01:19:21.716Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson03_activity1</loc>
<lastmod>2026-08-11T19:13:28.960Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_amazon_lesson4_activity1_tg</loc>
<lastmod>2026-08-17T01:19:20.973Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson2_activity3</loc>
<lastmod>2026-08-17T01:19:20.340Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson04_activity1</loc>
<lastmod>2026-08-17T01:19:19.667Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson10_activity1</loc>
<lastmod>2026-08-06T15:22:12.627Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_lesson6_activity2_tg</loc>
<lastmod>2026-08-17T01:19:19.067Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson07_activity1</loc>
<lastmod>2026-08-17T01:19:18.116Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson6_activity1</loc>
<lastmod>2026-08-17T01:19:17.498Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson08_activity1</loc>
<lastmod>2026-08-17T01:19:16.897Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson07_activity2</loc>
<lastmod>2026-08-17T01:19:16.138Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rivers_lesson01_activity1</loc>
<lastmod>2026-08-06T15:22:07.786Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson04_activity1</loc>
<lastmod>2026-08-17T01:19:15.466Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_cleanupmess_act2</loc>
<lastmod>2026-08-17T01:19:14.759Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson10_activity3</loc>
<lastmod>2026-08-17T01:19:14.127Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_hp_activity_acidic_ink</loc>
<lastmod>2026-08-17T01:19:13.518Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_healthcare_lesson01_activity1</loc>
<lastmod>2026-08-17T01:19:12.778Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson09_activity1</loc>
<lastmod>2026-08-17T01:19:12.150Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_fluidmechanics_lesson01_activity2</loc>
<lastmod>2026-08-17T01:19:11.536Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson04_activity5</loc>
<lastmod>2026-08-17T01:19:10.755Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson02_activity2</loc>
<lastmod>2026-08-06T15:21:59.811Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson02_activity1</loc>
<lastmod>2026-08-06T15:21:59.249Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_temp_activity1</loc>
<lastmod>2026-08-17T01:19:10.249Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_environ_lesson03_activity3</loc>
<lastmod>2026-08-06T15:21:58.183Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_housing_lesson03_activity2</loc>
<lastmod>2026-08-17T01:19:09.588Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_plastic_activity1</loc>
<lastmod>2026-08-17T01:19:09.119Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_brid_lesson04_activity1</loc>
<lastmod>2026-08-17T01:19:08.437Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson03_activity2</loc>
<lastmod>2026-08-17T01:19:07.734Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_bycatchunit_musc_act3</loc>
<lastmod>2026-08-06T15:21:54.923Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_cancer_activity1</loc>
<lastmod>2026-08-17T01:19:07.112Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uta_dense_lesson01_activity1</loc>
<lastmod>2026-08-17T01:19:06.521Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_troll_lesson01_activity1</loc>
<lastmod>2026-08-17T01:19:05.884Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_amazon_lesson6_activity1_tg</loc>
<lastmod>2026-08-17T01:19:05.174Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_intro_lesson02_activity1</loc>
<lastmod>2026-08-07T18:25:06.573Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_amazon_lesson3_activity1_tg</loc>
<lastmod>2026-08-06T15:21:50.606Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/clem_waves_activity</loc>
<lastmod>2026-08-17T01:19:04.262Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_dome_lesson01_activity1</loc>
<lastmod>2026-08-17T01:19:03.529Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_sound_lesson03_activity1</loc>
<lastmod>2026-08-06T15:21:47.619Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_liver_activity1</loc>
<lastmod>2026-08-17T01:19:02.565Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson03_activity1</loc>
<lastmod>2026-08-17T01:19:01.873Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_brid_lesson05_activity1</loc>
<lastmod>2026-08-17T01:19:01.229Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_bubble_mary_act</loc>
<lastmod>2026-08-06T15:21:45.030Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_electricity_lesson01_activity1</loc>
<lastmod>2026-08-17T01:19:00.604Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_heat_lesson1_activity1</loc>
<lastmod>2026-08-17T01:19:00.004Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson04_activity2</loc>
<lastmod>2026-08-17T01:18:59.309Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson02_activity1</loc>
<lastmod>2026-08-17T01:18:58.687Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/semisolid_sue</loc>
<lastmod>2026-08-06T15:21:41.123Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_cleanupmess_act3</loc>
<lastmod>2026-08-17T01:18:57.981Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rock_lesson05_activity1</loc>
<lastmod>2026-08-17T01:18:57.115Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/usf_maxwell_lesson01_activity2</loc>
<lastmod>2026-08-17T01:18:56.222Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_massba_activity1</loc>
<lastmod>2026-08-17T01:18:55.760Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_wavelength_activity1</loc>
<lastmod>2026-08-17T01:18:55.305Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson09_activity3</loc>
<lastmod>2026-08-06T15:21:37.043Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_biomed_lesson08_activity1</loc>
<lastmod>2026-08-17T01:18:54.662Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/umo_ourbodies_lesson02_activity4</loc>
<lastmod>2026-08-17T01:18:53.830Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wpi_ohm2_act_joy</loc>
<lastmod>2026-08-17T01:18:53.043Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_heat_lesson1_activity2</loc>
<lastmod>2026-08-17T01:18:52.219Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_skeletal_system_activity1</loc>
<lastmod>2026-08-17T01:18:50.819Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_pveff_lesson03_activity1</loc>
<lastmod>2026-08-17T01:18:49.940Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson09_activity1</loc>
<lastmod>2026-08-06T15:21:31.946Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_hp_activity_motion</loc>
<lastmod>2026-08-06T15:21:31.354Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_housing_lesson04_activity2</loc>
<lastmod>2026-08-17T01:18:49.142Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson08_activity1</loc>
<lastmod>2026-08-17T01:18:48.412Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ucd_energy_lesson02_activity1</loc>
<lastmod>2026-08-17T01:18:47.764Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_lesson3_activity2_tg</loc>
<lastmod>2026-08-06T15:21:26.277Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_membrane_activity2</loc>
<lastmod>2026-08-06T15:21:25.684Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson04_activity1</loc>
<lastmod>2026-08-17T01:18:46.933Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_crystals_lesson01_activity2</loc>
<lastmod>2026-08-17T01:18:46.351Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson01_activity3</loc>
<lastmod>2026-08-17T01:18:45.478Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson05_activity1</loc>
<lastmod>2026-08-17T01:18:44.704Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_enveng_lesson07_activity1</loc>
<lastmod>2026-08-17T01:18:44.030Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wsu_concentrate_activity1</loc>
<lastmod>2026-08-17T01:18:43.522Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson05_activity2</loc>
<lastmod>2026-08-17T01:18:42.685Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_convshoes_lesson01_activity2</loc>
<lastmod>2026-08-11T19:13:13.520Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/ohm1_act_joy</loc>
<lastmod>2026-08-17T01:18:41.965Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson05_activity2</loc>
<lastmod>2026-08-06T15:21:18.611Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_rockets_lesson03_activity3</loc>
<lastmod>2026-08-17T01:18:41.159Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_earth_lesson04_activity2</loc>
<lastmod>2026-08-17T01:18:40.533Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy_lesson03_activity3</loc>
<lastmod>2026-08-17T01:18:39.904Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/wst_natfreq_activity1</loc>
<lastmod>2026-08-17T01:18:39.414Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson09_activity2</loc>
<lastmod>2026-08-17T01:18:38.793Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson08_activity1</loc>
<lastmod>2026-08-17T01:18:38.110Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson07_activity2</loc>
<lastmod>2026-08-17T01:18:37.491Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_dams_lesson06_activity1</loc>
<lastmod>2026-08-17T01:18:36.856Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson02_activity1</loc>
<lastmod>2026-08-06T15:21:12.202Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_brid_lesson03_activity1</loc>
<lastmod>2026-08-17T01:18:36.046Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_navigation_lesson07_activity1</loc>
<lastmod>2026-08-06T15:21:09.936Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_cells_lesson03_activity1</loc>
<lastmod>2026-08-17T01:18:35.420Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/nyu_physical_computing_activity1</loc>
<lastmod>2026-08-17T01:18:34.786Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_amazon_lesson1_activity1_tg</loc>
<lastmod>2026-08-17T01:18:34.139Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson09_activity2</loc>
<lastmod>2026-08-17T01:18:33.441Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_air_lesson04_activity4</loc>
<lastmod>2026-08-17T01:18:32.728Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_electricity_lesson06_activity1</loc>
<lastmod>2026-08-17T01:18:32.045Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/csm_amazon_lesson7_activity1_tg</loc>
<lastmod>2026-08-06T15:21:00.391Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/duk_evolution_mary_act</loc>
<lastmod>2026-08-17T01:18:31.336Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_energy2_lesson09_activity1</loc>
<lastmod>2026-08-17T01:18:30.613Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_natdis_lesson07_activity1</loc>
<lastmod>2026-08-17T01:18:29.710Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_airplanes_lesson08_activity1</loc>
<lastmod>2026-08-17T01:18:28.838Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mechanics_lesson01_activity1</loc>
<lastmod>2026-08-17T01:18:28.153Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/glue_joy_act</loc>
<lastmod>2026-08-06T15:20:55.994Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson08_activity1</loc>
<lastmod>2026-08-06T15:20:55.419Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_bio_lesson04_activity1</loc>
<lastmod>2026-08-17T01:18:27.436Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_human_lesson10_activity1</loc>
<lastmod>2026-08-17T01:18:26.771Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_nano_lesson01_activity1</loc>
<lastmod>2026-08-17T01:18:25.987Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/cub_mars_lesson03_activity2</loc>
<lastmod>2026-08-17T01:18:25.270Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/van_membrane_activity5</loc>
<lastmod>2026-08-17T01:18:24.530Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/activities/uoh_electrons_activity1</loc>
<lastmod>2026-08-17T01:18:23.939Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/ced-creative-engineering-design-unit</loc>
<lastmod>2026-08-11T19:32:27.352Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/umo-2938-neural-engineering-unit</loc>
<lastmod>2026-08-11T19:32:26.320Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/umo-2952-brain-learning-process-unit</loc>
<lastmod>2026-08-11T19:32:25.399Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-forces-friction-unit</loc>
<lastmod>2026-08-11T19:32:20.166Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-forces-stress-strain-unit</loc>
<lastmod>2026-08-11T19:32:19.068Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-forces-mass-momentum-unit</loc>
<lastmod>2026-08-11T19:32:18.072Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-forces-weight-gravity-unit</loc>
<lastmod>2026-08-11T19:32:16.954Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-motion-kinetic-potential-energy-unit</loc>
<lastmod>2026-08-11T19:32:15.699Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-motion-newton-laws-unit</loc>
<lastmod>2026-08-11T19:32:14.455Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-work-force-energy-power-unit</loc>
<lastmod>2026-08-11T19:32:13.188Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-conservation-efficiency-unit</loc>
<lastmod>2026-08-11T19:32:12.236Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-use-systems-unit</loc>
<lastmod>2026-08-11T19:32:10.657Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-nonrenewable-oil-unit</loc>
<lastmod>2026-08-11T19:32:09.350Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-renewable-solar-unit</loc>
<lastmod>2026-08-11T19:32:08.361Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-renewable-water-unit</loc>
<lastmod>2026-08-11T19:32:07.025Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-renewable-wind-unit</loc>
<lastmod>2026-08-11T19:32:05.910Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-electrical-unit</loc>
<lastmod>2026-08-11T19:32:04.593Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-sound-unit</loc>
<lastmod>2026-08-11T19:32:03.505Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-thermal-unit</loc>
<lastmod>2026-08-11T19:32:02.582Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-energy-conservation-unit</loc>
<lastmod>2026-08-11T19:32:01.673Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_environ_weather_climate_unit</loc>
<lastmod>2026-08-11T19:32:00.274Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_environ_issues_unit</loc>
<lastmod>2026-08-11T19:31:58.896Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_environ_waste_recycling_unit</loc>
<lastmod>2026-08-11T19:31:57.642Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_environ_resources_unit</loc>
<lastmod>2026-08-11T19:31:56.617Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_environ_water_pollution_unit</loc>
<lastmod>2026-08-11T19:31:55.713Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub-air-greenhouse-effect-unit</loc>
<lastmod>2026-08-11T19:31:54.583Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_air_pollution_solutions_unit</loc>
<lastmod>2026-08-11T19:31:53.617Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_air_acid_rain_unit</loc>
<lastmod>2026-08-11T19:31:52.474Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_air_pollution_unit</loc>
<lastmod>2026-08-11T19:31:51.260Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_water_cycle_unit</loc>
<lastmod>2026-08-11T19:31:49.644Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_earth_surface_unit</loc>
<lastmod>2026-08-11T19:31:48.546Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/ucd_fieldday_unit</loc>
<lastmod>2026-08-17T01:38:05.369Z</lastmod>
</url>
<url>
<loc>https://www.teachengineering.org/curricular-units/cub_airquality_unit</loc>
<lastmod>2026-08-17T01:38:04.237Z</lastmod>
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