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Learners test two jars of ice water, one covered and one open, for changes in temperature. After placing the jars in the sun, learners discover that the covered jar cools down more slowly.

Learners test two jars, one containing plain air and one containing carbon dioxide gas, to see their reactions to temperature changes.

In this physics activity, learners construct a small-scale version of a classic carnival game.

In this quick activity about predicting (located on page 2 of the PDF under Where's Nano?