The Active Galaxies pop-up book is a very large rectangular pop-up book with foldouts that was developed for use in classrooms for grades 5 and up and for special needs audiences. Active galaxies, a major scientific...

This activity introduces two different representations of spectra: the photographic representation, such as the rainbow, and the graphical representation used more often by astronomers. A rainbow is often given as an...

This collection is intended to provide scientific resources and information to help students explore paleontology and learn about research in the field of paleontology. It features a module that explores a variety of...

This exhibit from Exploratorium Exhibit Services simulates the formation of desert landscapes. The site provides a link to a QuickTime video of the exhibit.

This radio broadcast discusses the findings of a conservationist who flew over of most of the continent of Africa in a small plane at low altitude, photographing the ground below every 20 seconds, to form a grid map. The...