Simple machines / by D.J. Ward ; illustrated by Mike Lowery.
"Machines help make work easier, like when you need to lift something heavy or reach way up high. There are six simple machines: the lever, the wheel and axle, the pulley, the ramp, the wedge, and the screw. Can you adjust a seesaw to lift an elephant? What happens when you combine two or more...
| Main Author: | |
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| Other Authors: | |
| Format: | Book |
| Language: | English |
| Published: |
New York, NY :
Harper, an imprint of HarperCollins Publishers,
[2015]
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| Edition: | First edition. |
| Series: | Let's-read-and-find-out science.
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| Subjects: |
Walker Library - Curriculum Collection - Juvenile - 3rd Floor
| Call Number: |
621.8 WAR |
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