Starter quiz
- What is weather?
- the day-to-day conditions of the atmosphere at a particular place ✓
- the average weather conditions over 30 years
- a type of moisture that falls from the sky
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- What latitude has the warmest climate?
- Arctic circle
- Tropic of Cancer
- Equator ✓
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- Which weather pattern is typically associated with calm conditions?
- high pressure systems ✓
- low pressure systems
- stormy pressure systems
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- The UK is located in the __________ hemisphere.
- northern ✓
- southern
- eastern
- western
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- Rain, snow, hail and sleet are examples of ...
- anticyclone
- precipitation ✓
- evaporation
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- What is an airmass?
- air with the same levels of temperature, humidity, and pressure ✓
- a force pushing or pressing on a given thing
- the boundary between warm and cold air
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Exit quiz
- Air ______ is the force exerted by the weight (or mass) of the column of air above us.
- 'pressure' ✓
- Put these three sentences together to describe how pressure changes cause winds to blow.
- 1⇔Pressure differences cause
- 2⇔winds to blow.
- 3⇔Air moves from areas of higher pressure
- 4⇔to areas of lower pressure.
- 5⇔The greater the pressure difference,
- 6⇔the stronger the winds.
- ______ form where cold and warm air masses collide. They are areas of low pressure where air is rising and bring unsettled weather.
- 'Depressions' ✓
- Which of these are features of depressions?
- strong winds ✓
- rain ✓
- heatwaves
- stable conditions
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Worksheet
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Presentation
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Video
Lesson Details
Key learning points
- Depressions are areas of low pressure where air is rising.
- Warm air and cold air meet at depressions causing changeable temperatures and rain.
- Depressions bring windy conditions shown by closely spaced isobars.
- Typically the passage of a depression over the UK can last between 1 and 5 days.
Common misconception
The weather associated with an anticyclone stays the same all year around.
Students will analyse images to identify how anticyclones may bring different weather in the summer and winter.
Keywords
Pressure - a force pushing or pressing on a given area
Air mass - a mass of air with the same levels of temperature, humidity, and pressure
Depression - an area of low pressure characterised by rain, wind and cloud
Front - a weather front is the boundary between a warm air mass and a cold air mass
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