Explains the basic principles of light and sound through looking at everyday experiences and direct observation.
- ISBN10 0613942132
- ISBN13 9780613942133
- Publish Date 4 February 2002 (first published 31 December 1996)
- Publish Status Out of Print
- Out of Print 6 April 2021
- Imprint Turtleback Books
- Edition Turtleback School & Library ed.
- Format Hardcover (Library Binding)
- Pages 24
- Language English