1. ATMOSPHERIC PRESSURE

2. Have you ever dived deep into the water?
What can you feel in your ears?
It’s pressure!

3. Imagine that we all live in an ocean of air…

4. 1) Atmospheric pressure at sea level is higher than at the mountain.
Atmospheric pressure is the weight of the gases at any point in the Earth.
1) Atmospheric pressure at sea level is higher than at the mountain.

5. 2) Atmospheric pressure acts perpendicularly in all directions.

6. Why this house is not squashed by the pressure?
3) There is a balance between all the forces.

7. Why pressure cookers have a mechanism to expel the vapour caused by the pressure?