weather and atmosphere
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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what is air | nitrogen 78% oxygen 21% water vapour, carbon dioxide,ozone and other gasses 1%
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radiation | air close to the ground is heated by heat waves
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convection | warm air rises
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conduction | cool air is heated by contact with warm air
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warm winds | winds that blow towards the pole
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cold winds | winds that blow towards the equator
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prevailing winds | winds that blow regularly over a region
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high pressure | air that has cooled and gets heavier -presses down on the earth
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low pressure | air is heated and expands -becomes lighter less weight
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the water cycle | evaporation ,condensation,precipitation , runoff
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convectional rainfall | sun heats the ground,air expands gets lighter and rises,it cools condenses and forms clouds,=heavy showers of rain during hot spells
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relief rainfall | sea winds full of moisture,forced to rise over mountains , moisture cools, condenses and falls as rain
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cyclonic rainfall | cold polar air meets warm tropical air ,warm air is forced to rise quickly,it condenses forms clouds along warm and cold fronts ,rain falls
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precipitation | rain ,hail, sleet, snow
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winds | moving air.air moves from areas of high pressure to areas of low pressure
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cause of ocean currents | unequal heating of the sea at different latitudes - at the the poles the sea is cold -at the equator the sea is warm-water moves between warm and cold sea areas
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atmospheric pressure | the weight of air
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to measure humidity | hygrometer
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to measure temperature | thermometer maximum and minimum
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to measure sunshine | Cambell-Stokes recorder
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to measure pressure | mercury barometer, aneroid baremeter and a barograph
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to measure rainfall | rain guage
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to measure the direction of wind | wind vane
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to measure the speed of wind | anemometer
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wind strength is measured by the | Beaufort scale
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a stephenon screen is used for | holding a maximum and minimum thermometer and a wet and dry bulb thermometer
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hectopascals/millibars | measurment for pressure
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isobar | lines joining places of equal pressure
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isotherm | lines joining places of equal temperature
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isohel | lines joining places of equal sunshine
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isohyet | lines joining places of equal rainfall
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Hurricane/Typhoon | rototing masses of cloud
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cyclones | create warm and cold fronts over Ireland and Western Europe
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a cold current | Labrador current
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a warm current | north Atlantic drift
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weather | condition of the atmosphere over a short period of time
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climate | the condition of the atmosphere over a long period of time e.g 35 years
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Created by:
buckley19
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