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In this activity, learners make a miniature greenhouse or "terrarium" to explore the greenhouse effect.

$1 - $5 per student Ages 8 - 18 1 to 7 days
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In this activity, learners discover how solar energy can be used to heat water.

$1 - $5 per group Ages 11 - 18 45 to 60 minutes
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In this activity, learners work in teams to simulate the process used by Global Positioning Systems (GPS) to determine the location of a fallen meteorite in Antarctica.

$1 - $5 per student Ages 11 - 18 10 to 30 minutes