Rodriguez, Cindy

An introduction to gases, covering kinds of matter, what gas is, how gases are cooled, and more. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

Photographs and simple text describe liquids. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

Photographs and simple text describe liquids.

An introduction to gases, covering kinds of matter, what gas is, how gases are cooled, and more.

Photographs and simple text describe liquids.

Photographs and simple text describe gases.

Guides readers through the basics of solids, as well as how it can change from one state to another.

Photographs and simple text describe liquids.

An introduction to gases, covering kinds of matter, what gas is, how gases are cooled, and more.