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Balloons & Buoyancy


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  • Gas
  • Buoyancy


Experiment with a helium balloon, a hot air balloon, or a rigid sphere filled with different gases. Discover what makes some balloons float and others sink.

Sample Learning Goals

  • Determine what causes the the balloon, rigid sphere, and helium balloon to rise up or fall down in the box.
  • Predict how changing a variable among P, V, T, and number influences the motion of the balloons.
Version 3.15