This link will take you to research material appropriate for elementary school, middle school and high school students. Adults will be very happy with the information from the high school level of Britannica, too.
General reference tool geared for students. Allows searches of magazines, newspapers, transcripts, and photos. (Library use only)
Designed to meet every student's science research needs, Science Reference Center contains full text for hundreds of science encyclopedias, reference books, periodicals and other sources. Topics covered include biology, chemistry, earth & space science, environmental science, health & medicine, history of science, life science, physics, and more.
Environmental Protection Agency (EPA) - contains scientific information about the environment. (Website)
Science.gov - searches over 40 databases and 1,950 selected websites, offering 200 million pages of authoritative U.S. government science information, including research and development results. (Website)