Play with dry ice
I thought the dry ice would be fun when I was in senior school after learning a lesson about it in physics class. Think about it, the ice turns into gas directly, likes some kinds of magic. I have never touch it before. And now I can get it by buying a can of icecream. Or can I say, dream comes true?:) There’s nothing special when leaving the dry ice in the open air of 25-30 degrees. You can’t see the violent phenomenon unless you put it into the water. Hotter water is better. So many air bubbles burst out. Isn’t it cool?