How to Make Dry Ice Bubble

A spooky cauldron with dry-ice "smoke" pouring over the edges adds a realistic touch to any Halloween display. Try this simple recipe for a dry-ice bubble that will resemble a mysterious smoke-filled crystal ball.

Things You'll Need

• A small piece of dry ice
• Bubble solution
• Water
• A glass

Instructions

1. Fill the glass half-full with water.

2. Add the piece of dry ice, which will start to bubble.

3. Using your fingers, spread a layer of bubble solution around the rim of the glass.

4. Wet your hand or a paper towel with the bubble solution and smear it over the top of the glass so that it makes a film over the bubbling water.

5. Stand back and watch the smoke-filled bubble grow. Because it is filled with carbon dioxide from the dry ice and not air, the bubble will last a fairly long time.

Tips & Warnings

• For an eerie, glowing effect, use tonic water instead of regular water and shine a black light on the bubble.

• Do not eat the dry ice, or even hold it in your hand for very long. Dry ice is so cold it can "burn" your skin.