Pulleys - Kay Manolis - Books - Blastoff! Readers - 9781626174764 - August 1, 2009
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Pulleys


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Pulleys are simple machines used to lift and move loads. Builders use pulley systems to lift tools or materials. Elevators use pulleys to move up and down. Kids will learn how pulleys make work easier and how they are often part of complex machines.

Media Books     Paperback Book   (Book with soft cover and glued back)
Released August 1, 2009
ISBN13 9781626174764
Publishers Blastoff! Readers
Pages 24
Dimensions 155 × 221 × 5 mm   ·   58 g
Language English