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37 Cards in this Set
- Front
- Back
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weather |
condition of the earths atmosphere in a particular time and place |
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atmosphere |
envelope of gases that surrond the plannet |
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water vapor |
water in the form of gas |
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density |
the ammount of mass in a given volume. |
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air pressure |
weight of a colum of air pushing on an area or surface |
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barometer |
an intrument used to measure air pressure |
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mercury barometer |
long glass tube that is open at one and and closed at another. measures air pressure |
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aneroid barometer |
airtight metal chamber tht is sensative to weather changes |
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altitude |
elevation, distance above sea level |
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troposphere |
lowest layer of the atmosphere |
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stratisohere |
second layer of the atmosphere |
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the mesoshpere |
the middle layer of the atmosphere |
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thermosphere |
the outermost layer of the atmosphere |
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ionoshphere |
lowest layer of the thermosphere |
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exoshpere |
outlayer of the thermosphere, extends thousands of kilometers |
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electromagnetic waves |
energy from the sun |
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radiation |
direct transfer of energy by electromagnetic waves |
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infered radiation |
not viable, can be felt be heat |
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ultraviolet radiation |
sun gives off, invisible, can cause burns |
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scattering |
particles and gases in the atmosphere disperse light in all directions |
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greenhouse effect |
heat held in earths atmosphere |
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temprature |
average amount of energy of motion for each particle |
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thermal energy |
measures the total energy of motion in the particles of a substance |
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thermometer |
device that measures temprature |
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heat |
thermal energy that is transfered from a hotter object to a cooler one |
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convection |
tranfer of heat by movement, curculation of fluid |
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conduction |
tranfer of heat between 2 substances |
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convection currents |
upward movement of warm air and downward motion of cooler air |
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wind |
the movement of air parallel to earths surface |
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anemeter |
measures wind speed |
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windchill factor |
increased cooling winds can cause; make it feel more colder than it accuallly is |
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local winds |
winds that blow over short distances |
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sea breeze |
local wind that blows from an ocean |
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land breeeze |
flow of air from land to body of water |
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global winds |
winds that blow stradily from specific directions over long distances |
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corioulis effect |
global winds dont follow a straight path |
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latitiude |
north and south imaginerry lines |
