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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