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Looks at the early Chinese, covering their language, innovation, mythology, and more. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

Text and photographs look at gemstones. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

An exploration of crystals that covers what they are, where they are found, how they grow, their uses, 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.

An introduction to rain forest biomes, looking at where they are located in the world, the types and climates of rain forests, and native plants and animals, and discussing why rain forests are in danger and the types of jobs available for people who want to work in rain forests. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

Introduces gymnastics, covering clothing, events, and more. Includes audio, videos, activities, weblinks, slideshows, maps, quizzes, and supplementary resources.

An exploration of heat waves, discussing causes, safety measures, records, and other related topics. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

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

An introduction to the planet Earth's surface, surroundings, interior, and more. Includes audio, videos, activities, weblinks, slideshows, maps, quizzes, and supplementary resources.

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.