Title:
 Pulleys
Personal Author EPSB:
 
Year Published:
 2003
1900-1999
Series:
 
Physical Description:
 32 p.
Contents:
 What is a pulley? -- What does a pulley do? -- How does a pulley work? -- Loads and efforts? -- Pulleys for lifting -- Pulleys for pulling -- Joining pulleys -- Faster and slower -- Pulleys together -- Pulleys on cranes -- Pulleys on boats -- Pulleys in machines -- Amazing pulley facts.
Program Information:
 Science Gr. 4C
Subject:
 
ISBN:
 9781403436634
Publisher:
 Chicago : Heinemann Library, c2003.

