matter

Describes the size of playing balls and the ways they can be put into motion.

Using a variety of household items to make a monster.

Photographs, diagrams, and illustrations describe the three different states of water.

Explores the characteristics of solids, liquids, and gases.

Discusses solid and liquid matter using pictures and simple text.

Explains what density is, using examples from a birthday party--such as a room filling with people, a floating balloon, and the bubbles in a cup of soda--to illustrate the concept.

An introduction to solids, liquids, and gases that explains what they are, how they are formed, and how they are used in every life and provides simple experiments to demonstrate the differences between them and help readers understand the scientific concepts presented.

Learn to recognize that objects come in a variety of sizes and that their sizes can be compared.

Introduces children to the various states of matter, explaining the properties of solids, liquids, and gases, how they are measured, and what role they play in everyday life.

Introduces students to mixtures and solutions, discussing matter, elements, properties, ions, compounds, alloys, colloids, and other related topics.