An Invisible Force: The Quest to Define the Laws of Motion

by Glen Phelan

Follow the quest to understand the laws of motion and gravity--to formulate the ups and downs of physics and solve the mysteries of the strange forces that propel all objects on Earth. Whenever we... This description may be from another edition of this product.

• Format: Library Binding
• Language: English
• ISBN: 0792255402
• ISBN13: 9780792255406
• Release Date: August 2006
• Publisher: National Geographic Kids
• Length: 64 Pages
• Weight: 1.00 lbs.
• Dimensions: 0.4" x 8.0" x 9.9"
• Age Range: 10 to 14 years
• Grade Range: Grades 5 to 9