Ostopowich, Melanie

Provides answers to questions about the science behind waste and includes information about waste management careers, and a related experiment.

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.

An exploration of rocks that describes the three main types, formations and where they are found, the work of geologists, rock cycles, and other related topics. www.av2books.com (book code J66825, security question "Crystal".

An introduction to the rock cycle that discusses types of rocks, how it works, weathering, erosion, sediment, fossils, the work of geologists, and other related topics. www.av2books.com (book code E454830, security question "not".

An introduction to oceans, lakes, and rivers that discusses their role in the water cycle and examines how water is used and protected and includes a quiz and an activity. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

An introduction to oceans, lakes, and rivers that discusses their role in the water cycle and examines how water is used and protected and includes a quiz and an activity. 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.

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 oceans, lakes, and rivers that discusses their role in the water cycle and examines how water is used and protected and includes a quiz and an activity.

An introduction to oceans, lakes, and rivers that discusses their role in the water cycle and examines how water is used and protected and includes a quiz and an activity.