Sloping Up and Down: the Ramp (Robotx Get Help from Simple Machines) - Gerry Bailey - Books - Crabtree Publishing Company - 9780778704195 - February 28, 2014
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Gerry Bailey
Sloping Up and Down: the Ramp (Robotx Get Help from Simple Machines)

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Sloping Up and Down explores the benefits and uses of the ramp. RobbO and RobbEE learn that a ramp is called an inclined plane. They discover that ramps are used for building stairs and escalators, and were even used as far back as ancient Egypt to build the pyramids.

Media Books     Hardcover Book   (Book with hard spine and cover)
Released February 28, 2014
ISBN13 9780778704195
Publishers Crabtree Publishing Company
Pages 32
Dimensions 150 × 220 × 20 mm   ·   362 g
Language English  
Contributor Mike Spoor

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