Dry Ice Bubble Tower

When dry ice is added to a soapy water solution in a tall cylinder, bubbles filled with fog stack on top of each other, creating a snake-like tower that spills over the sides.

1. Put on cotton or insulated gloves before handling dry ice.
2. Add a few drops of food coloring to a transparent measuring cylinder.
3. Fill the cylinder halfway with warm water and add a squirt of dish soap.
4. Drop a small piece of dry ice into the cylinder.
5. Watch as bubbles rise and stack into a foamy tower that spills out.

Dry Ice Soap Tower Bubbles - Yucky Science:

📄 Dry Ice Bubble Tower - RonyesTech: https://www.ronyestech.com/2020/05/dry-ice-bubble-tower-dry-ice-experiments.html

• Try different amounts of soap to see how it changes the height of the bubble tower.
• Use different temperatures of water.
• Use different container shapes (wide, tall, conical flask) and compare results.
• Add multiple colors of food coloring for a rainbow bubble effect.

• Always use adult supervision with dry ice.
• Handle dry ice with gloves or tongs to avoid frostbite.
• Keep dry ice out of the mouth - never ingest it.
• Work in a ventilated space to prevent buildup of carbon dioxide gas.
• Dispose of leftover liquid by pouring it safely down the sink once the dry ice is gone.

• Why does the bubble tower form instead of just fog?
• How does the amount of soap affect the bubbles produced?
• What role does sublimation play in creating the fog inside the bubbles?
• Would the experiment work the same with cold water instead of warm water?