rotation

Describes the effect of the sun on the earth as it spins in space, causing our day and night.

Presents a short study of how the earth moves in space, and describes the days and seasons, the orbit of the earth around the sun, and more.

Describes the effect of the sun on the earth as it spins in space, causing our day and night.

Provides information about the movement of the Earth, explaining how it spins on its axis while at the same time orbiting the sun.

Simple text and photographs introduce how day and night occur and why they are one of nature's patterns.

Provides a scientific explanation of how and why the sun sets, discusses the importance of the sun, and includes an activity and a glossary.

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 the science of the changing seasons and describes the unique characteristics of the earth and living things during each one.