Intermediate Simple Machines: Wheels and Axles
$9.95
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Caveman Zog demonstrates how wheels and axles make it possible for things to roll, making heavy work easier. Delightful examples make clear the exchange between force and distance made possible by using wheels and axles. “The action is fast, stimulating and entertaining... and is presented in small, palatable portions.” — Science Books & Films. 12 Minutes | Color
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