Sensational Science Projects with Simple Machines photograph

Sensational Science Projects With Simple Machines

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Originally published 2006
Authors Robert Gardner
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Date of Upd.
ID2150170
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About Sensational Science Projects With Simple Machines


How can a 50-pound boy lift a 200-pound man? How does a wheelbarrow work? Is it easier to roll a toy truck up an inclined plane or just pick it straight up? What is an easy way to move a load of bricks? . . .

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