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Code Number: 8A70.75
Demo Title: Gaseous Planets - Atmospheres
Condition: Good
Principle: Atmospheric and Gaseous Densities
Area of Study: Astronomy
Equipment:
Fish tank or Plexiglas Box, CO2, Soap Bubbles.
Procedure:
Place some dry ice into the bottom of the tank and let it sit long enough to create a layer of CO2 in the bottom of the tank. Make some soap bubbles and drop them into the tank. They will float at the air/CO2 interface.
References:
- Gerald F. Hinderholtz, "Buoyant Bubble", TPT, Vol. 16, # 7, Oct. 1978, p. 490.
- Sung Chang, "Liquid Deuterium Pressured into Becoming Metallic", Physics Today, Sep. 2015, p. 12.
- "Gaseous Planets", PIRA News, Vol. 9, No. 3, Page 23.
- Brett Carroll, "Bouyancy Demonstrations With Helium Balloons", PIRA Newsletter, Vol. 1, No. 5, Sept. 1986.
- Chemical Magic, "Gas Liberation: Bubbling - Soap Bubbles", pp. 25.
- Tik L. Liem, "The Floating Soap Bubble", Invitations to Science Inquiry - Supplement to 1st and 2nd Ed. p. 53.