Powerful Machines
(Part of the Simply Science Series and Simplesmente Ciência Series)
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From a simple pair of scissors to a complex rocket launcher, it is hard to imagine a world without machines. But did you know that almost every powerful machine is based on one or more of just six simple machines? Learn all about how these six simple concepts have shaped our world today.
Format:Library Binding
Language:English
ISBN:1433900351
ISBN13:9781433900358
Release Date:January 2009
Publisher:Gareth Stevens Publishing
Length:32 Pages
Weight:0.60 lbs.
Dimensions:0.3" x 7.8" x 10.0"
Age Range:7 to 11 years
Grade Range:Grades 2 to 6
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