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Bathtubs,Slides,Roller Coaster
Christopher Lampton
Paperback (Millbrook Press, March 1, 1991)Explains the concepts of simple and complex machines, and describes inclined planes, including screws and wedges, and how they work
T
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Bathtubs,Slides,Roller
1of6 Coasters,Lampton,4-6,Sm
Library Binding (Millbrook Press, March 1, 1991)Explains the concepts of simple and complex machines, and describes inclined planes, including screws and wedges, and how they work
T
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Bathtubs, Slides, Roller Coaster Rails: Simple Machines
Christopher Lampton
Library Binding (Bt Bound, Oct. 15, 1999)None