What is a gas?

by Lynn Peppas

Published 24 September 2012
Readers will discover different kinds of gases and their practical, everyday uses.

What is a solid?

by Lynn Peppas

Published 24 September 2012
Readers will learn the unique properties of solids and the conditions under which they change state.

What Is a Liquid?

by Lynn Peppas

Published 24 September 2012

How do we measure matter?

by Lynn Peppas

Published 24 September 2012
Readers learn to identify different tools used to measure matter, such as balances, rulers and thermometers.