Just ask Jeeves a question, and he'll try to find you the answer. Ben's Guide to U.S. Government for Kids bensguide.gpo.gov Children's introduction to the how the government works. For science experiment ideas or just for fun. This site tracks wildlife migration and spring's journey north. The journeys of a dozen migratory species are tracked each spring.
Students share their own field observations with classrooms across the hemisphere.
Web search for kids by librarians.