Balloon on a Bottle
Fri, Jun 22, 2012
Materials: Ice, 2L bottle, balloons, plastic pitcher of hot water, plastic pitcher of ice water.
Activity: Ice in a Bottle: Crush a few pieces of ice. Drop ice in a 2L bottle and cap it. Shake bottle vigorously. Watch bottle crinkle in. Balloon on a Bottle: Place a 2L bottle in a pitcher of ice water. Stretch a balloon on the neck of the bottle. Place bottle in a pitcher of hot water. Watch the balloon inflate!
Research Questions: How does size of bottle affect how the balloon inflates? How does the type of balloon affect how it inflates? How does temperature of hot and cold water affect how the balloon inflates? Does a “balloon on a bottle” weigh different when removed from hot water or ice water?
Resources:
Tags: Gas Air Pressure 2012