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7Sci_Ch 2 Sec3

Chapter 2, Section 3 Atmosphere

What causes the movement of air caused by differences in air pressure? wind
What is air warmer and less dense than surrounding air at the equator? the equator receives more solar energy
Where does cold polar air flow after high pressure areas are created around the poles? the equator
What is created around the poles as cold air sinks? high pressure areas
What happens to air that is colder and denser than surrounding air? it sinks
What are large, circular patterns of air movement called? convection cells
What are pressure belts? bands of high pressure and low pressure found every 30 degrees of latitude
What is Corioles Effect? when the paths of winds and ocean currents seem to curve because of the Earth's rotation
What is the horse latitudes? the area in which sinking air creates high pressure and weak winds at about 30 degrees north and 30 degrees south latitude
Where are most deserts located? the horse latitudes
What are the westerlies? wind belts that extend between 30 degrees and 60 degrees latitude in both hemispheres
What are polar easterlies? wind formed as cold, sinking air moves from the poles to 60 degrees north and 60 degrees south latitude
What are doldrums? the area around the equator where trade winds meet
What are trade winds? winds that blow from 30 degrees latitude in both hemispheres almost to the equator
Created by: ndmsteach