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As The Stomach Churns
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In this chemistry activity, learners fill two test tubes with a solution of "artificial stomach fluid," consisting of hydrochloric acid in the same concentration as in human stomachs, some soap to cre
Acid Rain
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In this chemistry demonstration, acid rain is simulated in a petri dish.
Rock Bottoms
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Learners add acid rain (nitric acid) to two cups that represent lakes. One cup contains limestone gravel and the other contains granite gravel.
Storm Water Runoff Pollution
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This activity (located on page 8 of the PDF) introduces learners to the concept of Non-point Source Pollution--what happens when rain washes garbage and other pollutants into rivers and lakes.
Exploring Size: Ball Sorter
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In this activity, learners use sieves with different-sized holes to sort balls by size.
Do Sweat It!
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In this activity, learners explore why humans sweat. Learners compare the effects of heat on a balloon filled with air and a balloon filled water.