Atmospheric Pressure
Properties of Matter

Dry Dive

At home for 5-11 11-14


What you need

  • A bowl
  • A glass
  • Water
  • A tissue

Instructions

  1. Fill the bowl with enough water to completely cover the glass
  2. Scrunch up the tissue and push it into the bottom of the glass
  3. Turn the glass upside down and submerge it in the water

Results and Explanation

Pull the glass out and the tissue is…Dry!

The air trapped inside the mug is at atmospheric pressure and this keeps the water out of the mug and away from the tissue.

These experiments have not been specifically safety tested for home use but we believe them to be safe if the instructions are followed. Adult supervision or direction is recommended as appropriate. All experiments are carried out at your own risk.

Atmospheric Pressure
is a special case of Pressure
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