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Earth Science 19

Weather

TermDefinition
65% Amount of American energy that comes from fossil fuels
wind turbine machines with blades that use wind to make power
wind farm a large group of wind turbines together
6500 number of homes a very large wind turbine can provide electricity for
weather condition of our atmosphere at a time and place
temperature amount of thermal energy in the air
32 freezing point of water in Fahrenheit
0 freezing point of water in Celsius
212 boiling point of water in Fahrenheit
100 boiling point of water in Celsius
meteorology study of atmospheric conditions
temperature, atmospheric pressure, wind speed, wind direction, precipitation, humidity 6 things that meteorology studies
atmospheric pressure weight of air on surfaces
warm temperature of air that has less pressure
cold temperature of air that has more pressure
barometer instruments used to measure pressure
14.7 psi normal air pressure
air mass large body of air
wind moving air
anemometer instrument used to measure wind speed
wind chill amount the wind decreases the feel of the temperature
precipitation any water form that falls to the earth from the sky
rain most common form of precipiation
humidity amount of water vapor in the air
absolute humidity mass of water in a given volume
relative humidity percent of water vapor in the air compared to how much water vapor air can hold at a given temperature
hygrometer instrument used to measure humidity
pressure, Coriolis effect, friction three main things that determine wind speed and direction
high to low the direction wind moves based on pressure
Coriolis effect how the earth's rotation makes the wind seem like it curves
cyclone wind pattern circling low pressure area counterclockwise
trade winds winds that come down at 30 degrees latitude and blow back toward equator
prevailing westerlies winds that come down at 30 degrees latitude and blow back toward the poles
prevailing westerlies winds responsible for much of the air movement in the US
polar easterlies wind from the poles that blow toward the equator
doldrums area at equator where there is very little wind
horse latitudes area at 30 degrees latitude where there is very little wind
sea breeze cooler air from over water that blows toward land
land breeze cool air from over land blows back toward the water, replacing the rising warm air over the water
dew point temperature when relative humidity is 100%
cloud collection of very tiny water droplets or ice crystals that is in the air
condensation nuclei microscopic particles in the air that water droplets can form around
dust, pollen, smoke examples of condensation nuclei
supercooled water liquid water that is below 32 degrees Fahrenheit
cirrus clouds that are high, wispy, curvy
cumulus clouds that are white, puffy, and tall
status clouds that look like sheets
nimbus clouds that bring rain
alto-- prefix that means clouds are in the middle atmosphere
10 times approximate amount larger that raindrops are compared to cloud droplets
freezing rain liquid precipitation that falls and freezes as it hits objects
sleet liquid precipitation that falls and freezes as it falls
hail precipitation that is layered ice pellets
snow precipitation that is formed by ice crystals falling and adding more ice crystals
wintry mix precipitation that is a mix of snow and rain
dew water vapor that condenses as it touches objects on or near the ground
frost water vapor that freezes as it touches objects on or near the ground.
Created by: user-1976193
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