Atmospheric Pressure
Properties of Matter

Dry Dive

Enrichment Activity for 5-11 11-14

What you need

  • A bowl
  • A glass
  • Water
  • A tissue


  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.

Atmospheric Pressure
is a special case of Pressure
IOP DOMAINS Physics CPD programme

Electricity CPD videos

Our new set of videos gives teachers and coaches of physics a preview of the training we offer ahead of this term's live support sessions.

Find out more