5962302
Description
Mind Map by dobby is free, updated more than 1 year ago
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Created by dobby is free
over 7 years ago
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Atmospheric Pressure
- In a low pressure system air rises in a clockwise direction
- If air weighs less than 1013 millibars, it is the low pressure system
- Air expands (becomes lighter) when it is heated
- light air is less dense- it is expanding
- As warm air rises, it will condense and form clouds
- Air that weighs more than 1013 millibars is heavier/denser
- If air weighs more than 1013 millibars, it is the high pressure system
- Air becomes denser as it is cooled
- This air sinks in an anticlockwise direction
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