Chemicals & Reactions

by Jon Richards

Published 1 March 2000
Describes experiments that demonstrate such chemical reactions as freezing, dissolving, and filtering and explains why they happen.

Light & Sight

by Jon Richards

Published 1 October 1999
Uses simple experiments to describe the properties of light and to demonstrate how rainbows are made, the importance of sunlight to life on Earth, how to create moving pictures, and more.

Air and Flight

by Jon Richards

Published 1 March 1999
Uses simple experiments to describe the properties of air and their effects especially on weather and flight.

Forces & Simple Machines

by Jon Richards

Published 30 July 2007

Work & Simple Machines

by Jon Richards

Published 1 March 2000

Sound & Music

by Jon Richards

Published 1 October 1999

Units & Measurements

by Jon Richards

Published 1 August 2004

Water & Boats

by Jon Richards

Published 1 March 1999
Uses simple experiments to describe the different forms water takes and demonstrate its various properties.

Shapes & Structures

by Jon Richards

Published 1 March 2000