P206 - Turning a figure with and without gears

An activity where children compare how quickly something can be made to turn with and without gears.
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P201 - Using materials that bend

An activity where children use nonstandard measurements to make a crown.
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P200 - Can you see through it?

An activity where children ponder if different materials are opaque or transparent.
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P189 - Water Resistance

An activity where children learn that the surface area of an object affects how it is slowed down by water resistance.
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