interactive multimedia

An introduction to military conflict during the twenty-first century, covering failure of communism, the Afghanistan War, the Syrian Civil War, the War in Iraq, nuclear Iran, and more. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

An introduction to ice, covering what it is, how it influences Earth, related dangers, and more. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

Describes the formation and characteristics of sedimentary rocks. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

Provides an overview of metamorphic rocks including how they are formed, where they are found, their characteristics, history, significance, and uses. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

An introduction to parasites that describes different types of parasites, discusses where they live and risks they face, and explains their place in a food chain. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

Presents an introduction to water power, in simple text with illustrations, including information on water power in history, hydroelectric dams, tidal power, steam power, and related topics. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

An introduction to avalanches, covering causes, records, the three zones of an avalanche path, and other related topics. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resource.

An introduction to producers that describes different organisms that make their own food, discusses where they canbe found and risks they face, and explains their place in a food chain. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

An exploration of sustainable living, covering e-pollution, reducing waste, telecommuting, related careers, and more. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

Explores the plants, animals, and environment that make up coral reef ecosystems. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.