What Happens If You Drop Red Hot Nickel on Floral Foam?

What happens if you drop a red hot nickel ball on floral foam? Well, this guy decided to try it and find out. One would think the foam would melt, with the ball falling right through. But that was not the case - the foam actually turned a greyish brown, hardened and started to crack. Very interesting to watch.

What do you think, did we get it right? Comment here...