ecology

Presents a short study of chaparrals, covering where they are located, plants and wildlife, and more. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

Presents an introduction to water pollution, in simple text with illustrations, explaining what it is, and how it affects the environment, and includes information on the different types of pollution, the water cycle, acid rain, and other topics. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

An introduction to forest evolution that describes renewable and nonrenewable resources, and discusses the importance, management, and conservation of forest resources. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

Explores the qualities that make the Earth a unique planet, focusing on its ability to support life and explaining the factors that allow life to exist, such as the planet's composition and its position within the solar system; includes an activity that teaches students about the Earth's water cycle, and a visit to Biosphere 2 in Arizona.

Explores the hazards to the environment and the coastal estuaries of Puget Sound and the Chesapeake Bay as a result of contaminated runoffs from industry, agriculture, and urban development in the region.

Describes the tropical rainforest and the life found there.

"An elephant eats, giraffes drink, a warthog digs, and a boy plays, reads, and dreams."--Provided by publisher.

Isatou Ceesay finds a way to recycle discarded plastic bags that have accumulated in dirty heaps in her Gambian village.

Describes what plants and animals grow and live in a desert including saguaros, scorpions, and yuccas.