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Work & simple machines
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Work & simple machines
-- Work and simple machines
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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.
Language
English
Series
Science factory
Dimensions
29 cm.