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24 pages • missing pub info (editions)
ISBN/UID: 9781614732747
Format: Not specified
Language: English
Publisher: Child's World
Publication date: 01 August 2012
Description
Readers learn how this simple machine makes it easier to lift, lower, and open things. They learn the three types of levers: first-class, second-class, and third-class. By the end of the book, readers know the difference between complex and simple...
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24 pages • missing pub info (editions)
ISBN/UID: 9781614732747
Format: Not specified
Language: English
Publisher: Child's World
Publication date: 01 August 2012
Description
Readers learn how this simple machine makes it easier to lift, lower, and open things. They learn the three types of levers: first-class, second-class, and third-class. By the end of the book, readers know the difference between complex and simple...