Don't try this at home, but here is proof that increasing the concentration of reactants will speed up a chemical reaction. The T.W.I.N.K.I.E.S. Project Engineering students at Rice University provide experiments with twinkies. The Chemistry department of Kids Web. This site has many links pertaining to Chemistry, also. Images of undersea chemical plumes, supernova from Hubble, aurora, etc.
Sports quizzes relating to science.
Find out here. Kids Web Contains science info and other stuff for kids. So simple that even politicians might learn something. Amatuer Science Nothing amatuer about the great links. Smithsonian Mag Magazine articles from the Smithsonian Magazine Bill Nye the Science Guy Send email questions to Bill Nye the Science Guy.