Databases
Ebsco Masterfile Premier -- Full text for over 1860 periodicals covering nearly all subjects.
Encyclopedia of Science and Religion -- Examines technologies such as in vitro fertilization, cloning, as well as issues such as the origins of life.
Science Resource Center -- An in-depth, curriculum-oriented database that focuses on key concepts taught in school classrooms such as earth science, science history, life science, physical science, and space.
Space Sciences -- Covers the history of space exploration to the future of "space business" including biographies of scientists and space-related career information.

Web sites
Science Fair Projects and Experiments -- Lots of science project ideas, with tips on creating displays.
The Biology Corner -- Includes lesson plans, images and quizzes. 
Bubble Town -- How to make giant bubbles, construct a bubble tube and play bubble games.
Newton's Castle -- Learn about Sir Isaac Newton, his discovery of gravity and optical theories.
Smith Life Science -- Free lesson plans, worksheets, labs, dissections and activities for middle school classes.

Web sites
Kid Info -- Links to various science related topics including health, astronomy, botany, weather and much more. 
Ask Professor Science -- Ask Professor Science a question or look at some he's answered.
The Biology Corner -- Site includes lesson plans, images and quizzes. 
Virtual Body -- Interactive 3-D presentation of human body.
History of Invention -- Look at inventions that have changed the way we live.