An introduction to the sources and characteristics of light.

A simple introduction to gravity, describing what it is and giving some effects of this force.

This series introduces simple science topics using everyday objects and situations that readers can recognize in the world around them. This title looks at ligh

Light is all around you! It comes in many forms: Light from the sun brightens our day, firelight flickers in the night, electric lights fill our homes--and some

"Introduces the reader to light"--