There exist short videos by the Canadian Broadcasting Company, sort of like a geeky Schoolhouse Rock without the music. They are all on YouTube-- here is the first one, which links to the second, etc.



DeeDee

ETA: I also recently downloaded an app for iPad called Science360-- a curated collection of science videos. I haven't had time to play with it enough yet to say whether we like it, but it's from the National Science Foundation, so presumably not awful...

Last edited by DeeDee; 02/28/12 06:43 PM.