Environmental Literacy Council
Over 1000 pages of background information and resources with curriculum materials and textbook reviews

Frank Potter's Science Gems
Links to resources by sciences and topics

IPL: Sciences and Technology
Annotated links to webpages about all aspects of science and technology

How Stuff Works
Shows how many familiar objects work

Math and Science Gateway
Links to resources in science and mathematics for educators and students in grades 9-12

National Science Foundation
An overview of the NSF's research and current science news

refdesk.com Science and Technology
Links to dozens of varied science sites

Science Daily
Science news updated daily

John F. Kennedy Space Center
Electronic images of the preflight, launch, and landing activities conducted for space shuttle missions

Animal Planet

Fundamental Physical Constants
Everything from Avogadro number to von Klitzing constant, arranged by category

Periodic Table of Elements

 Who Dunnit?
Forensic science resources and activities

School Science Fairs Homepage
"This homepage is designed to aid students in the most difficult aspect of their science fair experience; getting an idea."

Inside Cancer
Multimedia guide to cancer biology

The Ultimate Science Fair Resource
Ideas, information, help, links, and projects

The Franklin Institute Science Museum
One of the top science museums in the U.S.

NASA
Materials that engage student interest in science, technology, engineering, and math

Fun Science Gallery
"Fun, simple, low cost science experiments for amateur scientists!"

Bug Bios