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In this activity, learners create models of erosion and floods and learn to recognize both in their environment.

This activity guide includes instructions on how to build a "Shake Table" by mounting an eccentric mass (off center) on the shaft of a small dc motor.

In this activity, learners evaluate the potential performance of air rockets placed inside a wind tunnel.

In this activity, learners use sand and ice cubes to create a model of permafrost and the effects of the ice melting through the surface.

In this activity, learners take on the role of various parts of the cell in order to model the process of protein synthesis.