http://home.comcast.net/~fsteiger/theory.htm first link I found when I googled “scientific definition of theory”.
http://abstractfactory.blogspot.com/2005/10/ only-debate-on-intelligent-design-that.html link hubby forwarded to me – amusing, and with a number of other links that can keep you busily fuming for quite some time.
New Scientist has been providing some good reading about the subject, too. Here’s a fun fact: http://www.newscientist.com/article.ns?id=dn8178
And the National Academy of Sciences has a nicely presented piece-by-piece dissection of the scientific evidence that supports evolution theory and the arguments made counter to it by “creation science” here: http://books.nap.edu/html/creationism/introduction.html
Have fun, people. And pray that the creationists see the light. Heh.