devongrrl - 12-9-2010 at 01:29
I love these chemistry musicals 
These are by a chap called Mark Rosengarten.
http://www.youtube.com/watch?v=rnN_tcjyCzw
http://www.youtube.com/watch?v=mAjrnZ-znkY
http://www.youtube.com/watch?v=1PSzSTilu_s
http://www.youtube.com/watch?v=13WUqWd_Yk8