http://www.youtube.com/watch?v=WeWq6rWzChwGeez, I kid you not.
The flames shoot really high in this video. :p
I honestly wish I could try something like this at home but better not.
In my physics and chemistry experiments in high school, I'd be the only person to end up with all sort of strange results like some odd-coloured chemical which kept rising as I lowered the test-tube but would sink as I lifted the test-tube.