Is it easier to lift a bag full of toys with an inclined plane or a pulley? Readers will see how a group of kids compares two simple machines and decides which one does a better job at lifting the bag. This book supports engineering design standards for primary grades in the Next Generation Science Standards.
| ISBN: | 9781467782999 |
| Publication date: | 1st August 2015 |
| Author: | Schuh, Mari |
| Publisher: | Lerner Publishing Group |
| Format: | Ebook |