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7th Grade Weather Unit Study Guide

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
air mass   show
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show the force exerted by air, whether compressed or unconfined, on any surface in contact with it  
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show the envelope of gases surrounding the earth or another planet  
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show wispy clouds made of ice crystals  
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cold front   show
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condensation   show
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show the process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material  
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show the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat  
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Coriolis Effect   show
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cumulus   show
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dew point   show
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Doldrums   show
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evaporation   show
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exosphere   show
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front   show
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show wind systems that are a product of the Coriolis Effect; occurring globally at or near Earth's surface  
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greenhouse effect   show
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show the energy that is transferred between objects that are at different temperatures  
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show an area of high air pressure where air slowly sinks down, spreading toward areas of low pressure  
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show a belt of calm air and sea occurring in both the northern and southern hemispheres between the trade winds and the westerlies.  
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humidity   show
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show the layer of the earth's atmosphere that contains a high concentration of ions and free electrons and is able to reflect radio waves.; lower layer of the thermosphere  
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jet stream   show
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land breeze   show
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show the movement of air over short distances  
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show an area of low air pressure where air rises; as it rises the air cools  
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mesosphere   show
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mountain breeze   show
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show a warm and cold front mixed together  
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show a layer of ozone that is located in the middle of the stratosphere that protects us from harmful radiation  
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polar easterlies   show
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show any form of water that falls to earth's surface from the clouds  
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show the transfer of energy in the form of electromagnetic waves  
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relative humidity   show
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show the draining away of water (or substances carried in it) from the surface of an area of land, a building or structure, etc.  
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sea breeze   show
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stationary front   show
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show the layer of the atmosphere above the troposphere and below the mesosphere; planes fly there; contains ozone layer  
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stratus   show
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temperature   show
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thermal energy   show
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thermal expansion   show
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thermosphere   show
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trade winds   show
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show the lowest layer of the atmosphere where all weather occurs  
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valley breeze   show
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show Fronts that form when/where warm air moves over cold air  
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weather   show
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show global winds that blow between 30 and 60 degrees; tend to curve east  
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show the movement of air caused by differences in air pressure  
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