"Describes different jobs that levers and pulleys can do and how they are able to do them. As readers use scientific inquiry to learn about how force, energy, and work make using these simple machines possible and effective, an activity based on real world situations challenges them to apply what they've learned in order to solve a puzzle"--
- ISBN10 1599534266
- ISBN13 9781599534268
- Publish Date 15 January 2011
- Publish Status Out of Print
- Out of Print 29 April 2021
- Publish Country US
- Imprint Norwood House Press
- Format Hardcover (Library Binding)
- Pages 48
- Language English