Day and Night :
Content Resources for the Pre-Service Educator
LPI Educator Resources
Includes recommended books, Web sites, activities and more, from the SkyTellers program.
The Space Place: Why is Earth rotating?
Dr. Marc of NASA's Space Place provides an overview for children of Earth's rotation and how our period of rotation is changing.
Earth and Moon Viewer
An interactive program that allows children and adults to view Earth daylight darkness distribution from a variety of viewpoints. Visitors can manipulate location and time of viewing.