Grade
3-4
Alan Ward
Machines at Work
Library Binding
(Franklin Watts March 1, 1994)
An introduction to machines, from levers and pulleys to compound machinery, which includes instructions for activities and projects to illustrate the principles
- Series
- Project Science
- ISBN
- 0531142434 / 9780531142431
- Pages
- 31
- Weight
- 14.4 oz.
- Dimensions
- 8.5 x 0.2 in.
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