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Crazy Contraptions: Build Rube Goldberg Machines that Swoop, Spin, Stack, and Swivel
 You're here » Christian Books Index » Crazy Contraptions: Build Rube Goldberg Machines that Swoop, Spin, Stack, and Swivel
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Crazy Contraptions: Build Rube Goldberg Machines that Swoop, Spin, Stack, and Swivel

Author: Laura Perdew
Retail Price: $17.95
Our Price: $13.49
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Why use a simple hand motion to wipe your mouth when you can build a machine to do it for you? Toppling dominoes, rolling marbles, racing balloon cars, springing catapults, and whizzing zip-lines are all elements used to build Rube Goldberg machines in Crazy Contraptions: Build Rube Goldberg Machines that Swoop, Spin, Stack, and Swivel with Hands-On Engineering Activities. The book introduces kids ages 9-12 (and beyond!) to the wacky machines designed by Goldberg, which were based on complicated chain reactions used to accomplish very simple, sometimes ridiculous, tasks.

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