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8 Sci Ch 8 Test 8

TermDefinition
agricultural drought type of drought that occurs when precipitation cannot supply enough moisture to the ground to support an area's crops
air mass large body of air with relatively uniform properties
air-mass weather phenomenon when an air mass remains stationary over a region for a long time
Arctic air mass that brings very cold and dry weather
cirrostratus Wispy, thin sheets of clouds that are made of ice crystals and found spreading at high elevations.
climate year-round atmospheric conditions typical of a certain place
clouds consist of tiny ice crystals or droplets of water formed when a body of rising air reaches the dew point, usually the result of adiabatic cooling of moist air
condensation nucleus airborne water vapor cannot turn into liquid without a small particle
cumulus mid-level clouds that look like fluffy, rounded piles of cotton
decrease when air temperature rises, this happens to relative humidity
dendrites snowflakes with white, feathery branches forming a leaf-or star-shaped pattern
dew water vapor in the air that touches the cooler ground and turns to a liquid
dew point temperature at which cooling air becomes sasturated
drought A long period of low precipitation
evaporation process of a liquid becoming a gas
frontal cyclone a low that forms along a front
frost Ice formed when water vapor touches the ground and changes directly into ice crystals
hailstones layered balls of ice that fall like rain
heat energy, uneven distribution of heat energy, and water vapor three major factors that determine the earth's weather
humidity amount of water vapor in the air
lenticular cloud almond-shaped cloud
maritime polar type of air mass that brings cool, wet weather
maritime tropical type of air mass that brings warm, moist weather
melting going from a solid to a liquid
meteorology The science dealing with the weather and atmospheric conditions
occluded front type of front that forms a Y shape
photochemical smog thick, brownish haze that results from complex molecules released into the air by vehicles and some factories and plants
rain drops of liquid water that have a diameter of 0.5 mm or greater and fall from the clouds of Earth
relative humidity the ratio comparing at the actual humidity to the humidity of saturated air under the same conditions
saturated air that is completely full of water vapor and can hold no more
sleet Clear ice particles formed when raindrops freeze before they reach the ground
smog mixture of smoke and fog
snow precipitation made of ice crystals that fall to the ground
snowflakes large clumps of falling ice crystals that melt only slightly and stick and refreeze together
socioeconomic drought type of drought based on a water shortage's effect on people
stationary type of front forms when two air masses push against each other but neither advances
stratocumulus most frequent type of cloud
stratus cloud that forms a flat, gray layer of heavy clouds not far above the ground
temperature, humidity and pressure three factors that affect the density of air mass
upslope fog type of fog found along the slopes of mountains
warm front type of front that forms when a warm air mass moves into a region occupied by a cold air mass
water cycle movement of water from the earth's surface, into the air, and back to the surface
Created by: Mrs_CC
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