Biology
Animal Doc (learn how horses are operated on or other cool animal facts)
DNA Interactive (explore the fascinating world of DNA)
eSkeletons Project (view real human and primate bones)
Health Encyclopedia (browse over 1,500 medical topics)
San Diego Zoo (observe animals live via Webcam)
Chemistry
ChemiCool (everything you ever wanted to know about the periodic table)
WebElements (multimedia, interactive periodic table for your chemistry needs)
Environment
Green Squad (find out how schools can be more eco friendly)
Low Impact Living (the one stop green shop)
Planet Earth (explore the earth and its animals)
Reduce (MN site for reducing waste)
Scholastic Online (this site includes a number of environmental and other science games)
Skin Deep (check out this cosmetic safetly database)
General Science
C.O.O.L. Classroom (the seaweed is always greener is somebody else's lake)
Exploratorium (cool web-based science activies )
PBS Science (so much to do, so much to see)
Questacon (check out these science links)
SEED Science Lab (online activities related to geology, physics and space)
Math
Math Help (get yourself unstuck with this online reference)
WebMath (math help from the basics through trigonometry and calculus)
WWW Unit Converter (easily convert between different units of measurement)
Pets
Check out these sites for more information on pets:
Physics and Astronomy
Antimatter (check out the mirror of the universe)
ComicQuest (design your own space station and learn about the solar system)
Constellation List (comprehensive info on constellations)
Constellations (check out in depth info on each constellation)
NASA (check out what's happening in the final frontier of space)
Physics Central (find the answers to your burning physics questions)
Windows to the Universe (to infinity and beyond)
Technology
Poodwaddle (the search engine home page you can customize)