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sci10/30/08+

Science Vocabulary Quiz the Atmosphere

QuestionAnswer
weather the condition of Earths atmosphere at a particular time and place
atmosphere the layer of gases that surrounds Earth
ozone a form of oxygen that has three oxygen atoms in each molecule instead of the usual two
water vapor water in the form of a gas
density the amount of mass of a substance to a given volume
pressure the force of mass of a substance to a given volume
air pressure a force that is the result of the weight of a column of air pushing down on an area
barometer an instrument used to measure changes in air pressure
mercury barometer an instrument that measures changes in air pressure, consisting of a glass tube partially filled with mercury in the dish forces the mercury int the tube higher
aneroid barometer an instrument that measures changes in air pressure without using a liquid. changes in the shape of an airtight metal box causes a needle of a barometer dail to move
altitude elevation above sea level
troposphere lowest level of the earth's atmoshpere where weather occurs
stratosphere second lowest layer of the earth's atmosphere, the ozone is located in the upper stratosphere
mesosphere the middle layer of earth's atmosphere, the layer in which most meteoroids burn up
thermosphere the outermost layer of earth's atmosphere it is composed of the ionosphere and exosphere
ionosphere the lower part of the thermosphere where electrically charged particles called ions are found
aurora borealis a colorful glowing display in the sky caused when particles from the sun strike oxygen and nitrogen atoms in the ionosphere also called the "northern lights"
exosphere the outer layer of the thermosphere extending outward into space
Created by: gpc1313
 

 



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