Georgia Science Grade 6

Chapter 15: Atmosphere

CRCT Practice

1
Which layer of the atmosphere contains the ozone layer?
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A)exosphere
B)mesosphere
C)stratosphere
D)troposphere
2
Which atmospheric layer contains weather?
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A)mesosphere
B)stratosphere
C)thermosphere
D)troposphere
3
What happens to air when it is heated?
A)contracts and becomes less dense
B)contracts and becomes denser
C)expands and becomes less dense
D)expands and becomes denser
4
What process changes water vapor to a liquid?
A)condensation
B)evaporation
C)infiltration
D)precipitation
5
Which global wind affects weather in the U.S.?
A)doldrums
B)easterlies
C)trade winds
D)westerlies
6
Which deflects winds to the west or east?
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A)convection
B)Coriolis effect
C)jet stream
D)radiation
7
Which forms during the day because water heats slower than land?
A)easterlies
B)westerlies
C)land breeze
D)sea breeze
8
Which is the most abundant gas in Earth's atmosphere?
A)carbon dioxide
B)nitrogen
C)oxygen
D)water vapor
9
What process is illustrated by W?
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078778441/516730/br.jpg','popWin', 'width=348,height=256,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (35.0K)</a>
A)precipitation
B)condensation
C)evaporation
D)runoff
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