Download or read book Switch On, Switch Off written by Melvin Berger and published by A & C Black. This book was released on 1989-10 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: From a series designed to start children thinking scientifically about everyday phenomena, this book concentrates on light switches. It shows children how to build their own generators, which will help them to understand how electricity flows in circuits from the power station to their homes.