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Book, 2006
Current format, Book, 2006, , Available .
Book, 2006
Current format, Book, 2006, , Available . Offered in 0 more formats
Explains how simple machines, such as inclined planes, screws, and wheels and axles help to make work easier. How simple machines work and how they help us live our lives.National Geographic supports K-12 educators with ELA Common Core Resources.Visit www.natgeoed.org/commoncore for more information. How simple machines work and how they help us live our lives.
National Geographic supports K-12 educators with ELA Common Core Resources. Visit www.natgeoed.org/commoncore for more information.
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