Pressing down the lever
"Pressing Down explores the benefits and uses of the lever. RobbO and RobbEE learn how a lever can be formed in three different ways to do different kinds of work--lift and lower, separate, and open."-- Provided by publisher.
Saved in:
Main Author: | Bailey, Gerry, 1945- (Author) |
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Other Authors: | Spoor, Mike (Illustrator) |
Format: | Books Print Book |
Language: | English |
Published: |
St. Catharines, Ontario ; New York, New York :
Crabtree Publishing,
[2014]
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Series: |
Robotx get help from simple machines
|
Subjects: |
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