yhea, but in chem class... now dry ice is as fun as heck! i love playing with it! put a bouncy ball in there, let it sit there for a while and then take it out and throw it agianst a wall and SHATTER! awesome. i love it. but if ur not careful however, things could go wrong, like for this one guy who accidentally dipped a ball into the ice with a glove on..... ouchies..... i fell really sorry for him...