1. What happens when the water vapour in the air rises?
Try to use the words CONDENSE / CLOUD / RAIN / EVAPORATE

2. Types of Rain feedback!
Frontal rainfall
Relief rainfall

3. Types of rainfall

4. Air pressure and wind Lesson Objectives:
To understand the concept (idea) of air pressure
To be able to explain high and low pressure and identify it on a pressure chart
Lesson Outcomes:
All: will be able explain what we mean by air pressure
Most: will be able to explain the difference between high and low pressure
Some: will be able to give examples of the type of weather we get during high and low pressure

5. Air Pressure What’s air pressure?
Although we can’t feel it, all the air above us is pressing down on us.
If air pressure is LOW, it means air is rising and therefore the water
vapour in the air is rising also!
sinking
If air pressure is HIGH, it means air is _______
Each type of air pressure brings different weather.

6. Low pressure
So the fall in air pressure at A is a sign of rain and wind. The lower the pressure, the worse the weather will be.
The metrological term for a LOW pressure is DEPRESSION

7. High pressure
WHY?
So high pressure means clear skies, with no clouds. That’s what gives us our hottest summer and coldest winter weather.
The metrological term for a HIGH pressure is ANTICYCLONE

8. This is what happens when we have HIGH pressure in summer and winter.

9. B A C
What will the weather be like in the following places? A, B and C
Can you explain why?

10. Rainfall and air pressure
Lesson Objectives:
To be able to draw and interpret a rainfall graph and maps.
To understand the concept of air pressure
To be able to explain high and low pressure and identify it on a pressure chart
Lesson Outcomes:
All: will be able to interpret a rainfall graph and map
Most: will be able to explain what we mean by air pressure
Some: will be able to give examples of the type of weather we get during high and low pressure