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60 Cards in this Set
- Front
- Back
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argon |
% by volume .93 |
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carbon dioxide |
% by volume .038 |
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oxygen |
21% |
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other than gases, what else is found in the atmosphere |
water vapor and particles made of liquids and solids |
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2 sources of CO2 in air |
gasoline and humans |
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trace gases |
remaining amount of small gases (<1%) |
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2 processes that use oxygen |
burning and breathing |
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how does the atmosphere create suitable environment for living |
heat and air and shelter from sun |
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weather |
condition of earths atmosphere at a particular time and place |
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atmosphere |
envelope of gases that surround earth |
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ozone |
form of oxygen that has 3 molecules of O instead of 2 |
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water vapor |
water in the form of gas |
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altitude |
distance above sea level |
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barometer |
instrument that measures air pressure |
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aneroid barometer |
instrument that measures air pressure without using liquid |
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air pressure |
result of the weight of a column of air pushing down on an area |
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density |
amount of mass in a given volume of air |
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mercury barometer |
instrument that measures air pressure using liquid mercury |
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pressure |
force pushing on an area or surface |
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three properties of air |
mass density pressure |
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2 units of air pressure commonly used in weather reports |
millibars inches of mercury |
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exosphere |
the outer portion of the thermosphere |
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ionosphere |
the lower portion of the thermosphere |
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thermosphere |
the other most layer of the atmosphere |
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mesosphere |
protects the earths surface from being hit by meteroids |
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tropshere |
where weather occurs |
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stratosphere |
where the ozone layer is |
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uv light |
shorter wavelength |
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visible light |
medium wavelight |
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infrared radiation |
longer wavelengths |
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electromagnetic waves |
form of energy that can travel through space |
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radiation |
direct transfer of energy by electromagnetic waves |
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infrared radiation |
form of energy with wavelengths that are longer than those of red light |
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scattering |
reflection of light in all directions |
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greenhouse effect |
process by which heat is held by gases in air |
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conduction |
direct transfer of heat from one substance to another substance that is touching |
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heat transfer |
energy transferred from hotter to colder object |
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convection |
transfer of heat by movement of a fluid |
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thermometer |
thin glass tube with a bulb on the end that contains alcohol or mercury |
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thermal energy |
the total energy of motion in the particles of a substance |
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wind |
horizontal movement of air from an area of high to low pressure |
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anemometer |
how wind speed is measured |
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wind chill |
the increased cooling that the wind can cause |
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local winds |
winds that blow over short distances |
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sea breeze |
the flow of air from a body of water to land |
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land breeze |
the flow of air from land to a body of water |
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global winds |
winds that blow steadily from specific directions over long distances |
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coriolis effect |
the way earths rotation makes wind curve |
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latitude |
the distance from the equator measured in degrees |
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rain |
water droplets at least .5 mm in diameter |
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sleet |
rain that freezes on the way down |
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freezing rain |
rain that freezes on a cold surface |
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hail |
ice pellets that form in cumulonimbus |
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snow |
6 sided ice crystals |
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precipitation |
any forms of water that falls from clouds and reaches earth surface |
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rain gauge |
open ended can or tube that collects rainfall |
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drought |
long periods of no rain |
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clouds seeding |
way to make rain longer by dropping tiny crystals into clouds |
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collection |
when water is stored above the ground |
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flood |
when an area gets a large amount of rainfall |
