Overview
How simple machines work and how they help us live our lives. National Geographic supports K-12 educators with ELA Common Core Resources.The book, Lever, Screw, and Inclined Plane: The Power of Simple Machines ( National Geographic Science Chapters ) [Bulk, Wholesale, Quantity] ISBN# 9780792259497 in Library Binding by Gare Thompson may be ordered in bulk quantities. Minimum starts at 25 copies. Availability based on publisher status and quantity being ordered.
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