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Weather
Lou Baker
49
Science
7th Grade
04/24/2014

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Cards

Term
why is there uneven heating of the earths surface
Definition
differences in the earths surface
Term
how is the heat redistributed
Definition
heat is redistributed by air and water currents
Term
amount of water vapor in the air
Definition
humidity
Term
weather
Definition
state of the atmosphere at specific time and place
Term
air mass
Definition
large body of air that has properties similar to the earth's surface over which it forms
Term
high pressure system
Definition
rotates clockwise, good weather
Term
low pressure system
Definition
roates counterclockwise, poor weather
Term
front
Definition
boundary between two air masses
Term
cold front
Definition
cold air plows under warm air
Term
warm front
Definition
warm air plows over cold air
Term
stationary front
Definition
no air advances (stalemate)
Term
thunderstorms
Definition
severe rain storms; cumulonimbus clouds
Term
lightning
Definition
rapid up and down movement of air causes buildup of charge
Term
damage
Definition
flooding, strong winds, hail
Term
thunder
Definition
heating up of air by lightning
Term
where are tornadoes found
Definition
cumulonimbus clouds
Term
where do tornadoes occur
Definition
(tornado alley) are in midwest where ninety percent of tornadoes occur
Term
tornado season
Definition
april to june
Term
how high can winds reach during tornadoes
Definition
300 mph
Term
what scale is used to measure tornadoes
Definition
fujita scale (0-5)
Term
most powerful storm
Definition
hurricane
Term
where do hurricanes form and fuel
Definition
over water
Term
where do hurris. lose power
Definition
land
Term
3 stages to hurricne
Definition
tropical depression, tropical storm, hurricane
Term
how many categories of hurris. are there
Definition
5 (1-5)
Term
hurricane season
Definition
June through October
Term
severe winter storms
Definition
blizzards
Term
what needs to happen for blizzard to be caused
Definition
high winds, low visibility, persist for three hours
Term
wind
Definition
air moving in a specific direction
Term
temperature
Definition
measure of average amount of motion in molecules
Term
anemometer
Definition
measures wind speed
Term
wind vane
Definition
measures wind direction
Term
fog
Definition
stratus cloud formed near the ground
Term
3 factors that determine shape and size of cloud
Definition
temperature, air pressure, humidity
Term
high elevation
Definition
cirro-
Term
low elevation
Definition
strato-
Term
middle elevation
Definition
alto-
Term
stratus clouds
Definition
form at low altitudes
Term
cumulus clouds
Definition
puffy, white, associated with thunderstorms
Term
cirrus clouds
Definition
curly, high, thin, white, can indicate storms
Term
clouds associated with rain or snow have which latin term associated with them
Definition
nimbus
Term
4 steps to form a cloud
Definition
evaporation, water vapor rises, condensation around dust particles, cloud forms
Term
thunderhead
Definition
cumulonimbus
Term
meteorology
Definition
the study of weather
Term
meteorologist
Definition
person who studies weather
Term
station model
Definition
combination of symbols on a map
Term
isotherm
Definition
line connecting equal points of temperature
Term
isobar
Definition
line connecting points of equal pressure
Term
barometer
Definition
instrument used to measure air pressure
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