- ISBN: 1573351520 (hb.)
- Physical Description: 32 pages : illustrations (some color) ; 30 cm.
- Publisher: New York : Gloucester Press, 1993.
|General Note:|| Includes index.
|Summary, etc.:|| Looks at basic devices such as wheels, pulleys, levers, screws, and slopes, and suggests simple experiments and projects to demonstrate how they work.
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|Subject:||Simple machines > Juvenile literature.
Wheels > Juvenile literature.
Pulleys > Juvenile literature.
Levers > Juvenile literature.
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