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How Can Gravity Make Something Go Up?
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In this activity, learners use cheap, thin plastic garbage bags to quickly build a solar hot air balloon. In doing so, learners will explore why hot air rises.
Hot Air Balloon
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In this activity, learners build a hot air balloon using just a few sheets of tissue paper and a hair dryer.
Paddle Boat
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In this activity, learners build an old-fashioned paddle boat out of simple materials.
Floating Head Cup
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In this activity, learners watch a figure "magically" float up through the air.