A Science Fair Project Resource Guide.
http://www.ipl.org/youth/projectguide/
An excellent resource from Internet Public Library that links kids to all sorts of exceptional resources for their projects.
Science Buddies
http://www.sciencebuddies.org
Need help coming up with a science experiment? Visit this website to learn how to do a science experiment and to find many ideas for science experiments. All of the science experiments are rated on a scale of 1-10 according to difficulty.