Skateboards, roller coasters, and playground slides, all of these are ramps. From award-winning author Michael Dahl, this nonfiction picture book provides an introduction to one of the most important machines humans rely on. With fun facts and bright illustrations, find out how people use ramps every day.
Skateboards, roller coasters, and playground slides, all of these are ramps. From award-winning author Michael Dahl, this nonfiction picture book provides an introduction to one of the most important machines humans rely on....
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