CRCT Practice Test

KidsClick! - Web Search for Kids by Librarians

Scholastic

Yahooligans! - The Web Guide for Kids -  From Yahoo, a searchable web site for kids, which includes a directory of links arranged by topic

Sea World

NASA

700+ Great Sites: Amazing, Spectacular, Mysterious, Colorful Web Sites for Kids and the Adults Who Care About Them

Uncle Sam for Kids

Sci4Kids  - information about different science topics

Ask Jeeves for Kids - Answering millions of your questions

Infoplease Kids Almanac