Sciencemonster.com
Nice interactive Science site.

The Catalyst
Developed specifically for the high school chemistry teacher, to provide a place for finding relevant information for use in and out of the classroom.

Adventures in Science and Technology
Projects and information on chemistry, biology, computer science, engineering, and physics.

Student Science Enrichment Program (SSEP)
This site offers science games and activities for students, lesson plans and resources for educators.

Learning Through Collaborative Visualization
Attempting to transform science learning to better resemble the authentic practice of science. Focused on atmospheric and environmental science.

BrainPOP
This site contains answers to questions in the fields of science and Health in the form of mini movies.