Pressing Down explores the benefits and uses of the lever. RobbO and RobbEE learn how a lever can be formed in three different ways to do different kinds of work - lift and lower, separate, and open.
ISBN: | 9780778704225 |
Publication date: | 28th February 2014 |
Author: | Gerry Bailey |
Publisher: | Crabtree Classics an imprint of Crabtree Publishing Company |
Format: | Paperback |
Pagination: | 32 pages |
Series: | Robotx Get Help from Simple Machines |
Genres: |
Science |