How Does Temperature Affect How Does Temperature Affect Air Movement?Air Movement?

How is Air Heated?How is Air Heated?

Sun heats Earth’s Sun heats Earth’s surfacessurfaces

Surfaces heat air Surfaces heat air Uneven heating due to Uneven heating due to

angle of sun’s raysangle of sun’s rays Different surfaces Different surfaces

absorb heat differentlyabsorb heat differently

Warm AirWarm Air Vs. Vs. Cold AirCold Air

Warm AirWarm Air Cold Air

Which is more densely packed?

Warm AirWarm Air Vs. Vs. Cold AirCold Air

Which, do you think, has Which, do you think, has greater massgreater mass??

How Does Temperature Affect How Does Temperature Affect Air Movement?Air Movement?

Cold Cold air air fallsfalls

Warm air rises

Air PressureAir Pressure

Pressure:Pressure: amount amount anything presses anything presses downdown

Air pressureAir pressure: : amount air presses amount air presses down on usdown on us

So… So… How Does Temperature How Does Temperature Affect Air Movement?Affect Air Movement?

How Do Meteorologists Measure How Do Meteorologists Measure Air Pressure and Wind?Air Pressure and Wind?

BarometersBarometers

Greater Greater pressure….Higher pressure….Higher readingreading

How Meteorologists Measure How Meteorologists Measure WindWind

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