Cover image for What is a pulley?
Title:
What is a pulley?
Personal Author EPSB:
Summary:
Introduces pulleys and how they work to raise flags, as well as heavy objects.
Other Title:
Simple Machines
Year Published:
2002
Physical Description:
24 p. : col. ill. ; 16 x 19 cm.
Program Information:
Home Reading

Science
ISBN:
9780329322076

9780516240244
Publisher:
New York : Children's Press, c2002.