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In this activity, learners discover how solar energy can be used to heat water.

In this 7-10 day investigation, learners develop an understanding of waves and tides and their motion through discussion, demonstration, and hands-on activities.

Learners make a refrigerator that works without electricity. The pot-in-pot refrigerator works by evaporation: a layer of sand is placed between two terra cotta pots and thoroughly soaked with water.

In this activity, learners explore atoms as the smallest building blocks of matter. With adult help, learners start by dividing play dough in half, over and over again.

This hands-on experiment will provide learners with an understanding of the issues that surround environmental cleanup.

In this activity, learners build water-propelled engines from soft drink cans.

In this physics activity (page 10 of the PDF), learners will explore how energy from moving water can be used.