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Work & simple machines
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Work & simple machines
-- Work and simple machines
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71 Total copies, 69 Copies are in, 2 Copies are out.
Uses simple experiments to explore wheels, pulleys, levers, friction, and lift in terms of inventions and discoveries underlying the modern mechanical world.
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Authors
Richards, Jon, 1970-
Subjects
Simple machines--Experiments.
Force and energy--Experiments.
Experiments.
Experiments
Gears and Pulleys
Levers
Simple Machines
Wheels and Axles
Language
English
Series
Science factory