What is dry ice? It is something that is sometimes refereed to as "cardice" or "card ice". It is the solid form of carbon dioxide. It is used as a cooling agent. Some of its advantages include lower temperatures than water ice and not leaving any residue. It is good for preserving frozen food, ice cream when mechanical cooling is not available. The temperature of dry ice is below -56.4 degrees. Dry ice in soap water will cause foam to be produced for a very long time. A lot of foam.
Another cool fact about dry ice is that any bubbles formed with dry ice will not burst that easily and you can even make the bubbles bounce on your sleeves if you are wearing shirt of the correct material. You can even make it role down cloth of the correct material. In the below picture, the white round objects are bubbles formed with dry ice!
Dry ice can cause many problems too if not treated properly. As dry ice is below the temperature of -56.4 degrees, you can get frostbites if there is any direct contact with the skin. Not only so, if dry ice is kept in any sealed or tight containers, for example water bottles, IT WILL CAUSE THE CONTAINER TO EXPLODE!
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