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Levers in Action
Gillian Gosman
Paperback (PowerKids Press, Aug. 15, 2010)Introduces levers, explains how these simple machines work, and describes some common examples.
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Lasers in Action
Lionel Bender
Hardcover (Hodder Wayland, May 1, 1985)None
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Levers in Action
Gillian Gosman
Library Binding (Powerkids Pr, Aug. 15, 2010)Introduces levers, explains how these simple machines work, and describes some common examples.
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Levers in Action
Chris Oxlade
Hardcover (Capstone Classroom, Aug. 1, 2015)What are levers? How do levers work? Do bicycles have levers? For the answers to these and many other questions, read Levers. See how scissors are actually two levers put together. Learn about the lever that is used to control a sailboat. Find out how your arm works like a lever.
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Levers in Action
Gillian Gosman
Paperback (Powerkids Pr, March 15, 1887)None
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Lasers in Action
Lionel Bender
Library Binding (Franklin Watts, Oct. 1, 1985)Describes various kinds of lasers and their functions in industry, medicine, and art, and explores their special qualities, which will make them even more useful in the future
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Levers in Action
Gillian Gosman
Paperback (PowerKids Press, Jan. 1, 2011)None