Ever wanted to find out what super hero was made up of gold or mercury?
The Periodic Table of Comic Books is a great website that has been developed by two teachers from the Department of Chemistry at the University of Kentucky. With almost all of the elements there is at least 1 superhero comic available to download that discusses or makes reference to the element.
Another website to check out (linked from the Comic Book site) is WebElements Periodic Table. This website has a very in depth view on periodic tables. With video, audio, images, etc...
Give both of these a look...great resources for your science program.