Simple Machines

Patricia J Murphy

Simple Machines
Format
Paperback
Publisher
Rosen Classroom
Country
United States
Published
30 December 2005
Pages
16
ISBN
9780823982196

Simple Machines

Patricia J Murphy

Though most of us don’t think about it very often, simple machines are all around us, from ramps and levers to wheels and axles. They make our lives easier in many ways. It would be awfully difficult to ride a bike without the wheel and axle. Readers find out how some of our favorite simple machines work, and how they have changed our world.

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