Although I am the physics and astronomy librarian at Cornell, I do work with science teachers in all areas of science and at all grade levels. If one does a search in the K-12 portion of NSDL, one finds many web sites about the periodic table. It is possible to limit the search to a grade level range.

Just this morning I came across a really neat Periodic Table of Videos from the University of Nottingham.  From the “about” section:  “Tables charting the chemical elements have been around since the 19th century – but this modern version has a short video about each one.

Since launching this site, our videos have been watched more than 4.1 million times.

But we’re not finished yet. We’ve started updating all the videos with new stories, better samples and bigger experiments.”