matter

Presents the idea of mixing and separating materials featuring colorful photos. Includes experiments for children on mixing and separating household materials.

Describes the physical properties of solids and explains how matter can change to and from a solid into a liquid or gas.

Explores the various types of atoms, how atoms combine to form elements, and what physicists learn by studying atom behavior.

Discusses what atoms are, what's inside them, how matter is measured, the difference between liquids, solids and gases, how matter changes state and the water cycle.

Explains the states of matter, the scientific method, and includes experiments testing your knowledge.

Introduces atoms and molecules, talks about the elements, bonding and reacting, and matter and materials.

Presents an introduction to the periodic table of the elements, showing how hundreds of different elements combine to form compounds that make up the world around us.

A simple introduction to the different states of matter and how it can change from solid to liquid to gas.

Explains what solids and liquids are and the different properties they have.

Explains the different states of matter and how a substance changes from one to another; and includes experiments and activities.