Using household items and a little bit of dry ice, you can make a bubbling potion!

Fill a tall glass or cylinder with warm water. Mix in food coloring to give your potion some color. Next add a little dish soap—the more soap, the more bubbles.

Break off a piece of dry ice with a hammer or chisel. Dry ice can be found in most commercial grocery stores, including the HEB on Oltorf and Congress or Central Market. Remember, dry ice will burn your skin so don’t touch it with your bare hands! Using tongs, a thick hand towel, or an oven mitt, pick up a small chunk or two of dry ice and place it in your container.

Watch as the liquid immediately bubbles up and over!

Usually dry ice dissolves into a smoke-like carbon dioxide gas when placed in warm water, but the soap trapped the carbon dioxide in bubbles.

You can pretend to be a mad scientist or sorceror this Halloween. Make this potion and tell others what it does. Does your potion make people invisible? Does it make a candy tree grow? I think mine makes your skin turn green!

This is the second experiment in a three-part series using dry ice. Click here to see the first one and learn about what makes dry ice different from regular ice!