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In this activity about global climate change, learners will conduct an experiment and collect data to compare the amount of carbon dioxide (CO2) in four different sources of gases.

$5 - $10 per student Ages 11 - 18 45 to 60 minutes
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This is an online game about stopping distance. Learners choose one of three vehicles and one of three speeds.

free Ages 14 - 18 5 to 10 minutes