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Let's Make Molecules
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In this activity, learners use gumdrops and toothpicks to model the composition and molecular structure of three greenhouse gases: carbon dioxide (CO2), water vapor (H2O) and methane (CH4).
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The Carbon Cycle: Carbon Tracker
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In this activity, learners play NOAA's Carbon Tracker game and discover ways to keep track of carbon dioxide and other greenhouse gases in the world.
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Breathing Blue
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In this activity, learners test exhaled breath for carbon dioxide and learn how to use an indicator as a simple way to measure pH.
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Solving Dissolving
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The Sacred Cenote at Chichén Itzá is a sink hole, or well, containing groundwater. In this activity, learners create their own cenote using chalk, limestone, acids, and rain water.