Matter Day 2: Dry Ice

Today there was a group of us who had a dry ice lab because we weren't at school when the whole class made experiments. The teacher was kind enough to get the ice so that we can have the lab.

Dry ice is very, very cold, despite its name. It is so cold it can burn your finger if placed on ice under a few seconds. The correct way to hold the ice is hot potato. Meaning you bounce the ice in one hand to the other. If dry ice starts to "melt" instead of water it gives out gas. We were given a big piece of dry ice to start the lab. When the teacher gave us the ice I started playing with it by pushing it with my finger. It was like a hockey puck. It looked cool the way it was sliding with gas coming from the ice. It had a special effect to my experiment.

What we did for this experiment was place a piece of dry ice into water which was held by a beaker. Once that happened the ice started bubbling and gas started coming out of the beaker.

I also found out something fun, well not really fun but I liked it. If you place a cent on dry ice it makes a loud sound and if the cent is not touched and is there for a while it freezes which to me looks really cool. It reminded me of how a cent would look like if it would be found in ice hundreds of years later.
We also had put a piece of dry ice, 1.5 cm, in a balloon. After a good 2- 5 minutes it inflated itself, making the balloon 16 cm diameter. A few of our group members started playing with the balloon for a little while.

We got dishwasher soap, and covered the top part of the erlenmeyer. We then got a piece of string and covered the string with the soap and ran through the   top of the erlenmeyer and the gas of the ice filled the bubble and exploded.