In simple text, presents the three states of matter, solid, liquid, and gas, and describes their attributes.

Discusses three kinds of matter, solids, liquids, and gases, as well as molecules.

Provides information about the three different forms of matter, and includes experiments for learning about solids, liquids, and gas.

Presents a children's study of solids, liquids, and gases and the things that make up matter.

Explains how everything on Earth can be grouped into four states of matter and how matter can change from one state to another by applying heat or pressure. Includes related activities.