How can a pulley help you to lift a heavy weight? Why are two pulley wheels better than one? Full simple experiments help you find the answers to these questions.
- ISBN10 0750259523
- ISBN13 9780750259521
- Publish Date 9 July 2009
- Publish Status Out of Print
- Out of Print 17 July 2012
- Publish Country GB
- Publisher Hachette Children's Group
- Imprint Wayland
- Format Paperback
- Pages 32
- Language English