Experiments 4
In this experiment we are going to prove that air makes water rise.
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What you need for this experiment
- A bowl
- A drinking glass
- Water
- Put the glass into the water and turn it upside down.
- Lift up the glass but without the rim going above the surface of the water.
The level of water in the glass rises, so that this is higher than the water outside the glass.
Why
The pressure of air on the surface of the water in the bowl pushes the water up into the glass.
Take away
Air exerts a pressure of force on all surfaces with which it comes in contact.
