Dry Ice

I really liked using the dry ice. I see dry ice every Halloween so it wasn't much of a surprise to see the gas it forms and how when you add it in water with soap, the bubbles form. The dry ice is a lot of fun to deal with though. Personally my favorite was to put the dry ice on the table and watch with the slighest push, the ice would slide across the table so fast. Dry ice makes everything more fun :)