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Book, 2007
Current format, Book, 2007, , No Longer Available.
Book, 2007
Current format, Book, 2007, , No Longer Available. Offered in 0 more formats
Examine the seven basic simple machines: levers, wheel and axles, pulleys, gears, wedges, screws, and inclined planes. Graphic organizers demonstrate how they operate and how they are used to perform tasks.
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New York : Rosen Publishing Group's PowerKids Press, c2007.
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