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

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.

Text and photographs look at Cinco de Mayo.

An introduction to the water cycle that discusses clouds, precipitation, access to fresh water around the world, evaporation, pollution, and other related topics and includes a quiz and an activity.

Presents a short study of chaparrals, covering where they are located, plants and wildlife, and more.

Text and photographs look at pigs.

Text and photographs look at carnivores.

Text and photographs look at horses.

An introduction to deciduous forest biomes that looks at where they are located in the world, their various climates and seasons, native plants and animals, why their existence is in danger, and the types of jobs relating to the deciduous forest.

A short study of boreal forests, discussing where they are found around the world, the boreal climates and seasons, plants, animals, challenges to the ecosystem, and other related topics.