Cover image for Simple machines /.
Title:
Simple machines /.
Personal Author EPSB:
Summary:
Looks at the definition of work, the six simple machines and links to more complex machines.
Year Published:
2002

1900-1999
Physical Description:
24 p.
Note:
Fluent plus - level 24. Includes glossary and index.
Program Information:
Grades 3-6 FluentPlus - Level 24 - Science. Div. I
ISBN:
9780792284994
Publisher:
Washington, D. C. : National Geographic, 2002.