matter

An introduction to matter that defines what it is, describes its properties and forms, and includes a related activity.

Presents a discussion of matter, describing its three forms, including solid, liquid, and gas, and looking at how it changes from one form to another.

Presents an introduction to the concepts of solutions and mixtures, in simple text with illustrations, explaining how they differ.

Text and photographs provide a brief introduction to matter and its properties.

Examines the elements that make up the physical world and the properties and behavior of different kinds of matter.

Provides information about matter and includes step-by-step instructions for related experiments, covering boiling and freezing points, gases, diffusion, and more.

An introduction to the scientific concept of matter, including elements, atoms, and molecules.

Contains a collection of science experiments that provide an introduction to the different states of matter, including liquid, solids, and gas.

Simple text and illustrations introduce the functions of air, water, fire, and earth.

Describes solid, liquid, and gaseous salts, explains how salts are formed, and discusses how the body uses salt.