NASA for middle-school students http://www.nasa.gov/audience/forstudents/5-8/features/index.html
National Geographic for Kids http://www.nationalgeographic.com/kids/
Science Fair http://school.discoveryeducation.com/sciencefaircentral/
Science Fair http://www.all-science-fair-projects.com/
Science Fair http://www.scifair.org
Science Fair http://www.ipl.org/div/projectguide/
Science Fair http://sciserve.org/isef/
Science Fair http://www.homeworkspot.com/sciencefair/
Science Fair http://www.cyberbee.com/science/scifair.html