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California Science Center: Lemon Light
Try out this great electricity activity by using lemons to make a light bulb glow. You can learn about the science behind the activity and watch an animated demonstration.
Smithsonian Institution
Lemelson Center: Spark!lab: Build a Speaker
Learn how to build your very own speaker with items usually found around the house. Follow step-by-step instructions and discover how to use your speaker to listen to the radio.
Smithsonian Institution
Lemelson Center: Thomas Edison's Inventive Life
This site is a complete resource for learning about Edison's life, his inventions, and electricity. If you like experimenting, there are instructions included for how to make your own light bulb. Good photos.
Other
Cdli: Science Fairs Homepage
At this site from the Center for Distance Learning and Innovation there's a monstrous listing of possible science fair projects. You can choose from primary (grades 1-4), elementary (grades 4-6), intermediate (grades 7-9), or senior...