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Forces and Motion (Sci-Hi: Physical Science)
Forces and Motion - Sci-Hi: Physical Science Author:Casey Rand How does friction help you ride a bicycle? How does a submarine keep from sinking? What is equilibrium? The visually stimulating 'Sci-Hi' books take learning science core curriculum to a whole new exciting level. Each title explores an area of life, physical, or earth science in a way that is both engaging and comprehensive.