7th grade air pressure

7th grade air pressure

notes and practice

what is air pressure ?

air pressure is the measure of the force with witch air molecules push on a surface

cold air masses and low pressure systems

cold fronts bring low pressure systems . low pressure systems bring LOUSY weather . ex: thunderstorms , hurricanes, tornadoes.

warm air masses and high pressure systems

a warm air mass is a body of air that forms over a warm part of the earth. brings warm fronts and HAPPY weather.

front symbols

occluded fronts

an occluded front is where two air masses meet , and don't move. (refer to picture) and creates BAD weather .

stationary fronts

a stationary front is where two air masses meet but don't advance

Multiple Choice

High pressure will usually bring what kind of weather?

• clear and dry
• cloudy and wet

Multiple Choice

Low pressure will usually bring what kind of weather?

• Sunny
• Calm
• Stormy

Multiple Choice

___________is the result of the weight of a column of air pushing on an area.

• air pressure
• density
• volume
• none of the above