Images

Balloon under vacuum

A balloon is put in a vacuum chamber and the pressure reduced

marshmallow in reduced pressure

The marshmallow in the chamber is under reduced pressure. A normal marshmallow is sitting next to the chamber. The Marshmallow expands as the trapped gasses expand.

Repressurized marshmallow

A comparison of the repressurized marshmallow to a 'standard' marshmallow

Boiling water at Room Temperature

Water boiling at room temperature. Pressure in the chamber is about 5 torr. Most students thought the 'boiled' water felt cooler than the unboiled water.