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Byers, CE, Lesson 5
Winds
10
Science
7th Grade
10/17/2011

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Term
cold front
Definition
the zone separating two air masses, of which the cooler, denser mass is advancing and replacing the warmer.
Term
convection current
Definition
: Heat transfer in a gas or liquid by circulation of energy from one region to another.
Term
doldrums
Definition
a belt of calms and light baffling winds north of the equator between the northern and southern trade winds in the Atlantic and Pacific oceans
Term
jet stream
Definition
: a narrow belt of high-altitude winds (about 12 000 metres high) moving east at high speeds
Term
land breeze
Definition
a coastal breeze blowing at night from land to sea, caused by the difference in the rate of cooling of their respective surfaces
Term
sea breeze
Definition
: a thermally produced wind blowing from a cool ocean surface onto adjoining warm land.
Term
tradewinds
Definition
Winds that blow steadily from east to west and toward the equator over most of the Torrid Zone (the part of the earth's surface between the tropics of cancer and Capricorn.)
Term
warm front
Definition
a transition zone between a mass of warm air and the colder air it is replacing.
Term
Polar easterlies
Definition
Global winds that flow form the east to the west
Term
westerlies
Definition
global winds that flow from west to east.
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