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General Science on the Web

http://www.eskimo.com/~billb/
This science club site is aimed at the amateur scientist and has much that may be of interest to the science educator. Here you will find science demonstrations, experiments, articles, links to other related sites, and pages for home schoolers. You can leave questions to be answered but at the time I viewing there was a backlog of questions so you may not get a rapid response. http://www.halcyon.com/sciclub
Another site similar to the one above. Here again you will find science project material, books, science education links, resource material and you can ask questions and have then answered. http://www.thesphere.com/SAS/SciGrps
Interested in holography? Take a look at this page. It has been put together by a retired school teacher and amateur holographer. http://www.impro.com
The Annals of Improbable Research (AIR) are dedicated to the improbable. Take a look -- you may be surprised as to what is being researched. As well, you will find much that is useful, such as the following simple idea:

A good demonstration of magnetic levitation can be illustrated by gluing an acrylic plastic tube (say 2 inches in diameter) upright on a base of acrylic sheet, and placing two large ring magnets on the tube with like poles facing towards each other.