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37 Cards in this Set
- Front
- Back
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Weather |
condition of the Earth's atmosphere at a particular time and place. |
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Atmosphere |
Envelope of gases that surrounds 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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troposhpere |
lowest level of our atmosphere; where we live |
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stratosphere |
The second layer in our atmosphere;this contains the ozone layer. |
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Mesosphere |
The third layer in Earth's Atmosphere; protects the Earth from meteoroids. |
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Thermosphere |
The outermost layer in our atmosphere; consist of two atmospheres |
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Ionosphere |
lower layer of the Thermosphere. |
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exosphere |
the outer layer of the Thermosphere. |
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electromagnetic waves |
energy from the sun; this 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 effect |
heat held in Earth's atmosphere; natural process; keeps Earth's atmosphere atmosphere at a comfortable temperature. |
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Temperature |
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 mesures temperature |
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heat |
thermal energy that is tranfered from a hotter object to a cooler one |
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convection |
tranfer of heat through liquids |
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conduction |
transfer of heat through contact
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covection currents |
upward movement of warm air and downward motion of coller air form convection currents. |
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wind |
the movement of parallel to Earth's surface
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anemometer |
measures wind speed
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windchill factor |
increased cooling winds can cause; makes it feel much colder than temperature actually 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 or a lake
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land breeze |
flow of air from a land to 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 |
causes the winds in the northern and southern hemispheres the curve |
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latitude |
the distance in degrees north and south of the equator |
