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Fan Cart
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If a sailboat is stranded because there is no wind, is it possible to set up a fan on deck and blow wind into the sail to make the boat move?
Catapult
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In this activity, learners construct their own small catapults using simple materials. Learners follow visual instructions to build their launching device.
The Squeeze Box
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In this geology activity learners build a "squeeze box," which allows them to compress layers of sediment. This is a great way to investigate folding and faulting in the Earth.