Publisher's Synopsis
Focusing on simple machines and how they help us do work in our daily lives, this fun and informative series introduces young readers to several basic concepts of physics - such as work, force, gravity and fiction. In this volume, easy-to-do experiments, colourful photos, clear text and fun activities show kids how inclined planes and wedges are used, and how they make work easier. Also includes a list of websites, a further reading list, a glossary, an index and full-colour photos on every page! Ages 7-9.
