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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).

The Carbon Cycle and its Role in Climate Change: Activity 1
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In this activity (on page 1), learners role play as atoms to explore how atoms can be rearranged to make different materials.