ISBN: 0201649837

Description: 43 pages : color illustrations ; 28 cm.

Control Number: 366201

Series:

• Addison Wesley science & technology
• Addison Wesley science & technology ; Gr. 4
• Addison Wesley science & technology ; gr. 4.

Subjects:

• Gearing -- Juvenile literature.
• Gearing -- Study and teaching (Elementary)
• Pulleys -- Juvenile literature.
• Pulleys -- Study and teaching (Elementary)

Other Authors: Campbell, Steve.