Definitely did or was present for most of these in high school. Spent a LOT of time perfecting an elephant's toothpaste in the school colors. Can't really recommend the mercury one, though. Not because it's necessarily dangerous, but because it's potentially dangerous. Also, add the thermite reaction to this. Great lessons there on thermochemistry, especially what an exothermic reaction is

Oh,and not to nitpick, but none of these are inherently experiments unless you are comparing different ways of accomplishing them. They're better classified as demonstrations of chemistry principles. And as cool as ferrofluids are, what do they teach in a chem class? Also, I'd classify the grape in the microwave is a physics demo, not a chem one.

This is one guy's opinion. And while I might,agree with a lot of it, it might be more useful to get the whole list of every board game ever, top to bottom, aggregated by a large group of people, in which you can find 5583 games ranked better than Monopoly: http://www.boardgamegeek.com/browse/boardgame