Education.com has 100s of science fair project ideas that can be easily sorted by grade level or subject area. There are also helpful articles with advice on completing projects.
Education.com Science Fair Projects
March 20, 2010 -- From Patrick, a reader, from Redwood City, CA, who is affiliated with the site.
Great science fair resources sortable by grade level and topic to make browsing easier!
LooLeDo | Crafts and Science Projects
January 21, 2010 -- From LooLeDo, a parent, from Alamo, Ca, who is affiliated with the site.
Fun Kids Crafts, Science Projects, and More. Step-by-step instructions for hundreds of incredibly cool crafts and science projects that can be built from everyday household objects. Upload and share your crafts with the world today.
Easy Fun Science
November 30, 2009 -- From Kate, a parent, from Mansfield, who is not affiliated with the site.
Everything you need to know about making science fun at home. A very good online resource for parents to capture kids’ interest and love for science through a see-for-yourself approach in studying science concepts. Activities/experiments featured here are very easy and make use of common household items.
The Kids’ Science Challenge
June 17, 2009 -- From Jim, a reader from New York State, USA, who is affiliated with the site.
The Kids’ Science Challenge is a national competition challenging 3rd to 6th graders to come up with new ideas in collaboration with real scientists and engineers. More than a competition, kids who visit the website can learn about the science behind candy making and skateboard engineering, among other themes. We offer curricula, games, videos and fun science activities to download and do at home or school. The Kids’ Science Challenge is a free competition supported by a grant from the National Science Foundation.
Kitchen Science
January 27, 2009 -- From Dave, a reader from Cambridge, UK, who is affiliated with the site.
Over a hundred science experiments, ranging from how to make a bowl disappear to making a light bulb light up with no wires. How to do the experiment is explained, what to expect is illustrated with photos and diagrams, and what happened is explained in detail and illustrated with loads of diagrams so you know what happened and more importantly why.
ScienceBob.com
December 22, 2008 -- From Robert, a reader, from Northeast US, who is affiliated with the site.
ScienceBob.com is an excellent educational site with many free home science experiments for ages 7 and up. There is also a section on science fair ideas, as well as experiment videos, and an “Ask Bob” section.