Exploratorium Science Snacks

http://www.exploratorium.com/snacks

Discovery School Science Fair Ideas

http://school.discovery.com/sciencefaircentral

Super-Science Fair Projects

http://www.super-science-fair-projects.com

Science Fair Ideas by Subject

http://www.scifair.org/ideas/index.shtml

USF Science Fair Project Ideas

http://www.csee.usf.edu/~rundus/madpages/scifair.html

IPL Kidspace Resource Guide

http://www.ipl.org/youth/projectguide/