Science
Ask Dr. Universe(Scientist at Washington State University and "Dr. Universe" answer science based questions).
Climate Kids(NASA)
Energy Kids(U.S. Energy Information Administration)--learn about the different forms of energy; games
Mineralogy for Kids--learn about rocks and minerals
National Geographic for Kids(Everything you want to know about the world, people, and animals)
Science News For StudentsNEW-(Current events of science topics;
Space Scoop(the latest astronomy news)
States of Matter(Learn about gas, solids, and liquids with the professor)