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Middle school  
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This hands-on activity demonstrates how the combining two fluids (confluence of two rivers, Mediterranean water spilling over the straits of Gibraltar into the Atlantic) involves two processes: (1) stirring - stretching of the bulk fluid, and (2)... (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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