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Seesaws, Nutcrackers,Brooms

by Christopher Lampton, Carol Nicklaus

Cover of Seesaws, Nutcrackers,Brooms

Explains how levers work as simple machines.

LeversSimple machinesJuvenile literatureMachineryMachines simplesOuvrages pour la jeunesseLeviers
Seesaws, Nutcrackers,Brooms by Christopher Lampton, Carol Nicklaus — book · Vinony