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30 Cards in this Set

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AIR PRESSURE
THE PUSH OF THE AIR IN ALL DIRECTIONS AGAINST ITS SUROUNDINGS
BAROMETER
AN INSTRUMENT THAT MEASURES AIR PRESSURE
HIGH PRESSURE AREA
AN AEA OF HIGHER AIR PRESSURE THAN THAT OF THE SURROUNDING AIR; USUALLY BRINGS CLEAR DRY WEATHER
LOW PRESSURE AREA
AN AREA OF LOWER AIR PRESSURE THAN THAT OF THE SURROUNDING AIR; USUALLY BRINGING CLOUDY SKIES AND PRECIPITATION
CONTRACT
TO SHRINK OR GET SMALLER
EXPAND
TO BECOME LARGER AND TAKE UP MORE SPACE
WIND DIRECTION
THE DIRECTION IN WHICH THE WIND COMES FROM
WIND VANE
A DEVICE SHAPED LIKE AN ARROW USED TO SHOW THE DIRECTION OF THE WIND
WIND SOCK
A DEVICE USED TO SHOW THE WIND DIRECTION CONSISTING OF A CLOTH BAG THAT IS OPEN AT BOTH ENDS AND HUNG ON A POLE
ANEMOMETER
AN INSTRUMENT THAT MEASURES WIND SPEED
WIND CHILL
THE COOLING EFFECT OF A COMBINATION OF TEMPERATURE AND WIND
FRICTION
A RESISTING FORCE THAT ACTS TO SLOW DOWN THE WIND
WATER CYCLE
THE MOVEMENT OF THE EARTH'S WATER FROM EARTH, THROUGH THE ATMOSPHERE, AND BACK IN AN ONGOING AND CONTINUOUS CYCLE
FREEZING
THE CHANGE OF STATE FROM LIQUID TO A SOLID
MELTING
THE CHANGE OF STATE FROM A SOLID TO A LIQUID
EVAPORATION
THE CHANGE OF LIQUID WATER INTO WATER VAPOR
CONDENSATION
THE CHANGE OF WATER VAPOR INTO LIQUID WATER
CLOUD
A MASS OF TINY DROPLETS OF WATER THAT CONDENSED FROM THE AIR
FOG
A CLOUD THAT TOUCHES EARTH'S SURFACE
PRECIPITATION
ANY FORM OF WATER THAT FALLS FROM CLOUDS TO EARTH'S SURFACE; RAIN,SNOW,SLEET,AND HAIL
SNOW
A SOLID FORM OF PRECIPITATION MADE OF ICE CRYSTALS
RAIN
WATER DROPS THAT ARE LARGER AND FALL FASTER THAN DRIZZLE
SLEET
PARTIALLY FROZEN RAIN
HAIL
PARTICLES OF ICE THAT FALL FROM THE SKY, USUALLY RANGING FROM THE SIZE OF A PEA TO THE SIZE OF A GOLF BALL
RAIN GAUGE
A DEVICE FOR MEASURING PRECIPITATION
DEW
WATER THAT HAS CONDENSED INTO OBJECTS NEAR THE GROUND
FROST
COVERING OF ICE RESULTING FROM CONDENSATION WHEN THE AIR TEMPERATURE IS BELOW FREEZING
HUMIDITY
THE AMOUNT OF WATER VAPOR IN THE AIR
RELATIVE HUMIDITY
THE AMOUNT OF WATER VAPOR IN THE AIR AT A GIVEN TEMPERATURE, COMPARED TO THE MAXIMUM AMOUNT THAT THE AIR COULD HOLD AT THAT TEMPERATURE
HEAT INDEX
THE TEMPERATURE YOUR BODY FEELS COMBINED WITH HUMIDITY