STARTERWhat can we remember about pressure?

Which pressure is higher? The pressure inside or outside the balloon?

If we untied the balloon, what would happen to the air inside? Why?

What happens to air when it is heated?

Does this create high or low pressure?

Why would wind therefore be created?

How would this affect the weather?

Pressure & the Seasons

What is a season?

Do we have seasons in Malaysia?

What is this line?

How does this affect the seasons?

Pressure and the Seasons

• High and Low pressure in the air affects the weather.• However, it does not always affect

the weather in the same way: how the weather is affected depends on the SEASON.

Pressure and the Seasons

• However, most of the world are affected by Four Seasons: What are they?

• Look at the following slides, spot the season!

Make a copy of this diagram. Discuss and try to explain how this effects the temperature and therefore seasons.

Sun’s rays

Why do we have seasons?