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37 Cards in this Set
- Front
- Back
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weather |
condition of Earth's atmosphere at a particular time and place |
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atmosphere |
envelope of gases that surronds the planet |
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water vapor |
water in the form of gas |
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density |
the amount of mass in a given volume |
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air pressure |
weight of a column of air pushing on an area |
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barometer |
instrument used to measure air pressure |
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mercury barometer |
long glass tube that is open at one end and closed at the other. |
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aneroid barometer |
airtight metal chamber that is sensitive to weather changes. |
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altitude |
elevation; distance above sea level |
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troposphere |
is the layer of the atmosphere where weather occurs |
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statrosphere |
2nd layer of the atmosphere and contains the ozone layer |
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mesosphere |
layer that protects Earth's surface from being hit by most metroids |
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thermosphere |
the outermost layer of Earth's atmosphere |
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ionosphere |
lower layer of thermosphere |
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exosphere |
outer layer of the thermosphere |
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electromagnetic waves |
energy from the sun; it can move through space
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radiation |
direct transfer of energy by electromagnetic waves |
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infrared radiation |
not visible by humans, but can be felt as 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 into all directions |
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greenhouse affect |
heat held in Earth's atmosphere; natural process; keeps Earth's tempature at a tempature comfortable enough for all living things. |
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tempature |
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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heat |
thermal energy that is transferred from a hotter object to a cooler one |
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convection |
transfer of heat by the movement/circulation of a fluid is convection |
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conduction |
transfer of heat between two substances that are in direct contact |
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convection currents |
the upward movement of warm air and the downward movement of cool air |
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wind |
the movement of air parallel to Earth's surface |
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anemometer |
what wind speed is measured with |
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windchill factor |
the increased cooling that a wind can cause
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local winds |
winds that blow over short distances |
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sea breeze |
a local wind that blows from an ocean or lake |
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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 Earth's rotation makes wind curve |
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latitude |
the distance from the equator |
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thermometer |
a device that measures tempature |
