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9780836873535
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Forces and motion are key concepts in the elementary science curriculum. How Simple Machines Work uses easy-to-read text and full-color photographs to help young readers understand the principles behind simple machines. Each volume includes three diagrams to enhance understanding. The text has been vetted by a science curriculum consultant and a reading consultant, allowing students to build reading skills as well as their knowledge of science concepts.Jim Mezzanotte is the author of 'How Pulleys Work (How Simple Machines Work)', published 2006 under ISBN 9780836873535 and ISBN 083687353X.
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