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This is a lesson about impact craters; the relationships between crater size, projectile size and projectile velocity; and the transfer of energy in the cratering process. Learners will create plaster of Paris or layered dry impact craters and... (View More)

In this activity, learners build a sextant to measure the altitude, or height above the horizon, of an object. The activity was originally designed to accompany a previous NASA-funded educational program, entitled The Sun in Time.

In this introductory climate change investigation, students will set up at least one temperature monitoring station at the school and take daily minimum and maximum temperature readings. These local average temperatures can be compared to the global... (View More)

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