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Kids create 50 amazing contraptions that spin, fling, collide, and whiz! -- Kids have fun creating all kinds of gizmos and gadgets that help them understand the laws behind motion, friction, gravity, rotation, balance, and energy. -- They will build a catapult that sends marshmallows flying or send a marble on a wild ride down a room-sized marble ramp. They can even design a friction gobot, let gravity activate a dinosaur's head, meet Sir Isaac Newton, and have fun! -- This book is chock full of clear and concise explanations of scientific terms, mini-biographies of inventors, and even historical context. -- Winner of numerous science writing and education awards. -- See More Science Fair Projects
Price: $12.95 Click here for more info.
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