Synopsis
Describes how simple machines utilize the principle of the slope or incline to plow fields, unlock doors, and lift heavy loads
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Simple Slopes
Seller: Better World Books: West, Reno, NV, U.S.A.
Seller rating 5 out of 5 stars
Condition: Good. Carr, Ed (illustrator). Former library copy. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Includes library markings. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good. Seller Inventory # 9760248-75