What do you get when you mix a frizzy-haired, grandfatherly chemist with his younger, cackling, explosion-loving sidekick? The Periodic Table of Videos! Put together by a team at the University of Nottingham in the UK, this gargantuan effort of 118 short vids chronicled everything from Hydrogen (very explosive) to Oxygen (also very explosive) to Sodium (not explosive...until you add water!) on down the list all the way to Ununoctium, element 118, of which only three atoms have ever been observed. Check out the oxygen pyrotechnics below.
With over a hundred videos to choose from, there are going to be plenty of highlights to choose from. Make sure you hit the explosive vids (as noted above), as well as Mercury and Helium — no bangs there, but with Hg, Peter License talks about how he used to "play football (soccer) with it with our fingers back in school. We don't do that now because we care about our safety."
Take some time and noodle around through this awesome treasure trove of video chemistry, and whenever you find Peter License (he of the cackling) with a matchstick in his hand, you know a ball of fire is soon to follow. That's usually spliced in with Martyn Poliakoff soothingly delivering interesting tidbits about whatever element you're watching.