Title:
Lever, screw, and inclined plane : the power of simple machines
Personal Author EPSB:
Summary:
An introduction to simple machines includes levers, wedges, screws, inclined planes, wheels and axles, and pulleys.
Year Published:
2006
Physical Description:
40 p. : col. ill. ; 21 cm.
Grade Interest level:
1-4
Program Information:
Science
Subject:
ISBN:
9780792259497
Publisher:
Washington, D.C. : National Geographic, 2006.
