Do you know what a lever is? How can a lever help you? Through simple experiments and clear explanations, understand how this simple machine functions and how it can make the work that you do easier.
| ISBN: | 9780822500643 |
| Publication date: | 1st January 2001 |
| Author: | Feldmann, Roseann|Walker, Sally M. |
| Publisher: | Lerner Publishing Group |
| Format: | Ebook |