How Pulleys Work (How Simple Machines Work)

By Jim Mezzanotte

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.

• Format: Unknown Binding
• Language: English
• ISBN: 0836873483
• ISBN13: 9780836873481
• Release Date: December 2006
• Publisher: Stevens Publishing LLLP, Gareth
• Length: 24 Pages
• Weight: 0.38 lbs.
• Dimensions: 7.3" x 0.3" x 7.3"
• Age Range: 6 to 9 years
• Grade Range: Grades 2 to 4