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Tuesday, 17 June 2014 11:52



Additional Info

  • ID Code: F2-12
  • Purpose: Show that hot air is less dense than cold air by operating a hot air balloon.
  • Description: A 15-ampere hot air gun is used to inflate a hot air balloon. As the air inside is heated, its density decreases with respect to the cooler outside atmosphere. Within less than a couple of minutes, the buoyant force becomes sufficient that the balloon will rise.

    Invite students to predict what will happen as the air cools.

  • Availability: Available
  • Loc codes: OS4
Read 1687 times Last modified on Monday, 31 August 2020 15:51