Bubble Suspension

Create a cushion of carbon dioxide gas to float some soap bubbles on. Many concepts can be demonstrated through this activity:

  • Carbon dioxide gas is more dense than air
  • Bubbles are semipermeable, allowing only carbon dioxide to diffuse in, but not the air to escape out
  • Sublimation from a solid to a gas

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Pros

  • Everybody enjoys learning by using dry ice
  • Can be used in a variety of lessons
Cons

  • None