EXPERIMENT
Fill your graduated cylinder half-full with warm water. If you don't have a graduated cylinder laying around, you can use something similar, like a flower vase or another tall, narrow container.
NOTE: Before handling any dry ice, put on a pair of heavy gloves. Dry ice is so cold (-110ºF/-78ºC) that it will burn your skin!
Make sure that you have pieces of dry ice that are smalle enough to fit inside your graduated cylinder. If not, put on a pair of safety glasses and use a hammer to break the dry ice into smaller pieces.
Once you've created the small pieces, drop a few into the graduated cylinder. Once in the water, the dry ice will begin bubbling and producing a smoke within the cylinder. Eventually the smoke flows right over the top.
Take your bubbling, smoking cylinder to a whole new level with… soap? That's right, just put a squirt of dish soap into the cylinder and watch what happens! Before you know it, a column of bubbles begins to form at the mouth of your cylinder.
Don't be afraid, grab those bubbles and give them a squeeze! These bubbles burst with an amazing explosion of fog.