Rolling along : the wheel and axle (Robotx get help from simple machines)
by Bailey, Gerry, 1945- (Author)
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Summary
"Rolling Along explores the benefits and uses of the wheel and axle. RobbO and RobbEE build a cart to make it easier to move a heavy load, and learn how the wheel and axle are also used for lifting and turning."-- Provided by publisher. Full description
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Other Authors
Spoor, Mike (Illustrator)
Main Language
English
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English
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