General Science
Building Big - Explore large structures and what it takes to build them
Discoverer
Grolier New Book of Popular Science
How Stuff Works
Internet Public Library - Math and Science Websites
Internet Public Library - Science Magazines
Internet Public Library - Science Museums
Junior Edition - Reference Center Gold
Kids Edition - Reference Center Gold
Kids Infobits
Science Net
World Book Online

Animals
Animal Diversity Web
Internet Public Library - Animal Websites
Virtual Reference Library
Zoom Dinosaurs

Biomes
The World Biomes

Chemistry
Internet Public Library - Physics and Chemsitry Websites
Rader's Chem4Kids
Web Elements

Earth Science
Earth Science Enterprise
Environmental Kids Club
Internet Public Library - Earth Science Websites
Internet Public Library - Plant Websites
What Tree Is It?

Science Fair
Internet Public Library - Science Fair Projects Websites

Science - History
A Science Odyssey
Internet Public Library - History and People Websites
Today in Science History

Space
Internet Public Library - Air and Space Websites
NASA for Kids
Solar System Exploration

Weather
Dan's Wild Weather Page
Weather.com
Weather Channel's Weather Classroom
Web Weather for Kids