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EARTH SCiiENCE - CHAPTER 15
.:*FLASHCARDSZ ABOUT EARTH SCiiENCE - CHAPTER 15*:.
22
Science
8th Grade
11/09/2006

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Term
WEATHER
Definition
THE CONDiTiON OF EARTH'SZ ATMOSPHERE AT A PARTiCULAR TiME && PLACE
Term
ATMOSPHERE
Definition
THE LAYER OF GASES THAT SURROUNDSZ THE PLANET
Term
OZONE
Definition
FORM OF OXYGEN THAT HAS THREE OXYGEN ATOMSZ iN EACH MOLECULE iNSTEAD OF ONE
Term
WATER VAPOR
Definition
WATER iN THE FORM OF A GAS
Term
POLLUTANTSZ
Definition
HARMFUL SUBSTANCESZ iN THE AiR, WATER, OR SOiL
Term
PHOTOCHEMiCAL SMOG
Definition
THE BROWN HAZE THAT FORMSZ iN CiTiESZ
Term
TEMPERATURE iNVERSiON
Definition
A LAYER OF WARM AiR PREVENTSZ THE RiSiNG AiR FROM ESCAPiNG
Term
ACiD RAiN
Definition
RAiN THAT CONTAiNSZ MORE ACiD THAN NORMAL
Term
DENSiTY
Definition
AMOUNT OF MASS iN A GiVEN VOLUME OF AiR
Term
PRESSURE
Definition
THE FORCE PUSHiNG ON AN AREA OR SURFACE
Term
AiR PRESSURE
Definition
the force exerted by air, whether compressed or unconfined, on any surface in contact with it
Term
MERCURY BAROMETER
Definition
A BAROMETER CONTAiNiNG MERCURY
Term
ANEROiD BAROMETER
Definition
A barometer in which variations of atmospheric pressure are indicated by the relative bulges of a thin elastic metal disk covering a partially evacuated chamber.
Term
ALTiTUDE
Definition
ELEVATiON
Term
TROPOSPHERE
Definition
THE LOWEST REGiON OF THE EARTH'SZ ATMOSPHERE BETWEEN THE EARTH'SZ SURFACE && THE TROPOPAUSE
Term
STRATOSPHERE
Definition
THE REGiON OF THE UPPER ATMOSPHERE
Term
MESOSPHERE
Definition
MiDDLE LAYER OF EARTH
Term
THERMOSPHERE
Definition
OUTERMOST LAYER OF EARTH
Term
iONOSPHERE
Definition
THE REGiON OF THE EARTH'SZ ATMOSPHERE BETWEEN THE STRATOSPHERE && THE EXOSPHERE
Term
AURORA BOREALiS
Definition
AN AURORA THAT OCCURSZ iN THE NORTHERN REGiONSZ OF EARTH [[ALSO CALLED NORTHERN LiGHTSZ]]
Term
EXOSPHERE
Definition
THE HiGHEST REGiON OF THE ATMOSPHERE
Term
BAROMETER
Definition
ANY iNSTRUMENT THAT MEASURESZ ATMOSPHERiC PRESSURE
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