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Simple text and illustrations introduce young readers to the planet Mercury.

Simple text and illustrations introduce young readers to the planet Mars.

An introduction to earthquakes, covering where they occur, how they are measured, how they are studied, and more.

Looks at the natural landforms, animals, plants, climate, and culture of the Western states.

Looks at the natural landforms, animals, plants, climate, and culture of the Southwestern states.

Looks at the natural landforms, animals, plants, climate, and culture of the Southeastern states.

Looks at the natural landforms, animals, plants, climate, and culture of the Northeastern states.

Looks at the natural landforms, animals, plants, climate, and culture of the Midwest.

Looks at the natural landforms, animals, plants, climate, and culture of the Alaska and Hawaii.

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