Monday, August 2, 2010
Air Pressure: Balloon in a Flask
Place the flask over a burner or on a hot plate until the water begins to boil.
Use your tea kettle (or other pan) to heat some water until it begins to boil. Quickly pour the water into a bottle (you could use plastic since you're nto heating the bottle) - use a funnel - and cap the bottle with a balloon. Then, proceed as above, cooling the bottle.