Rising Water

Purpose How strong is air pressure? Can it push liquid through a barrier? Materials In the Kit: Foil Pan 2 Beakers Tea Candle Color Tablet…

Balloon in the Freezer

Purpose Is air pressure affected by temperature? I wonder what would happen if I put a balloon in the freezer. Materials In the Kit: 2…

Suction and the Bag in the Cup

Purpose Suction cups work because of air pressure differences. I wonder if I am stronger than a suction cup. I wonder if I can make…