Simple Machines by Deborah Hodge

Simple Machines

Starting with Science

Deborah Hodge with Ray Boudreau (Illustrator)

32 pages missing pub info (editions)

nonfiction childrens nature science
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Description

Thirteen experiments about the six simple machines --- the lever, wheel and axle, pulley, inclined plane, wedge and screw --- teach kids about basic science. Full-color photographs and step-by-step instructions clearly explain each activity, so th...

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