earth

Discusses the earth's origins, changing seasons, geographic features, plant and animal life, and rocks and minerals.

Outlines a radical new approach to geologic history that advances controversial theories that the Earth evolved and that life evolved from minerals, assessing supportive findings while explaining the impact of human actions.

Chronicles the life of nineteenth-century physicist L?on Foucault, the first person to offer definitive proof that the earth revolves on its own axis.

Photographs and simple text describe how day changes to night.

A simple explanation of how the rotation of the earth causes night and day.

Photographs and simple text explain night and day and why the changes occur.

Describes the characteristics of Earth, discussing what it is made of and how it moves around the sun, and looking at the things that live on the planet.