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In this activity, learners use marshmallows and gum drops to construct seven models of molecules. Learners classify (solid, liquid or gas) and draw diagrams of the molecules.

1 cent - $1 per student Ages 8 - 18 10 to 30 minutes
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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).

$1 - $5 per group Ages 6 - 14 10 to 30 minutes
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In this activity, learners use molecular model kits to construct familiar molecules like lactose, caffeine, and Aspirin.

Over $20 per student Ages 11 - adult 30 to 45 minutes