earth

Answers questions about our planet Earth including its structure and the abundance of life on its surface.

Long ago Bear lived in the sky with his family of stars, then he decided to float down to Earth. This is the tale of Bear's discoveries on Earth.

Thirty-five full-color paintings show the changing face of the earth from the first cataclysmic upheavals through the various ages to the time of man.

Discusses the Earth and its natural features, climate, and products.

Presents illustrated profiles of each planet in the solar system as well as the sun, the moon, the asteroid belt, comets, and telescopes.

Information about the ways nature and humans are making changes to the landscape around the world, sometimes quickly -- earthquakes or quarrying, sometimes more slowly -- cave formation and erosion or desert reclamation.

Enumerates some of the features of the planet Earth, including its climate zones, oceans, and deserts, going from one up to ten and then back down to one again.

Introduces the idea of cycles in nature, and discusses the continuing rotation of day and night, explaining the importance of each to people, plants, and animals.

Explains Earth, its atmosphere, its layers, and how it was formed.

Reviews the history of discovery as it relates to Earth, the moon, and the sun, looks at Earth's solar system, explains where stars come from and how they form, discusses Earth's gravity and rotation, and describes the moon's formation and orbit.