Originally posted by Qwerty.55:
It's a very simple experiment. Before the video, the creator placed some calcium carbide in the bottom of the dish. Then, when they put the ice on top, the melted ice reacted to produce acetylene, which was then ignited by the match.
And just to check, I Googled it and found
this. Actually, what I found was a site detailing exactly how to perform the reaction, but I won't post it for obvious reasons(it's a dangerous reaction).
PS: Just in case you didn't understand any of that, yes, it's real.