Description |
40 pages : color illustrations ; 21 cm |
Series |
National Geographic science chapters.
|
Bibliography |
Includes bibliographical references (page 39) and index. |
Summary |
Simple machines are described with information about the wedge, the inclined plane, the wedge, the screw, the lever, the wheel and axle, and the pulley. |
Study Program |
Accelerated Reader LG 4.0 0.5 121890 |
Note |
Accelerated Reader LG 4.0 0.5 121890 |
Subject |
Simple machines -- Juvenile literature.
|
ISBN |
0792259491 |
Standard No. |
9780792259497 |
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