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20 Cards in this Set
- Front
- Back
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Scattering |
Reflection of light in all directions |
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Greenhouse effect |
the trapping of the sun's warmth in a planet's lower atmosphere |
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Thermal Energy |
The energy of motion in the molecules of a substance |
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Wind |
Wind is caused by differences in atmospheric pressure created, in large part, by the unequal heating of the earth's surface by the sun. |
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Anemometer |
an instrument for measuring the speed of the wind |
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Wind Chill Factor |
Increased cooling caused by wind |
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Jet Stream |
a narrow, variable band of very strong, predominantly westerly air currents |
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Sea Breeze |
a breeze blowing toward the land from the sea |
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Land Breeze |
a breeze blowing toward the sea from the land |
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Humidity |
the amount of water vapor in the atmosphere |
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Relative Humidity |
the amount of water vapor in air expressed as a percentage of the amount needed for saturation at the same temperature. |
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Psychrometer |
a hygrometer consisting of a wet-bulb and a dry-bulb thermometer that measure humidity |
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Dew Point |
the atmospheric temperature below which water droplets begin to condense and dew can form |
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Cumulous |
A fluffy white clound with a flat bottom |
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Stratus |
The clouds that cover the sky like a blanket (when low, they are fog!) |
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Cirrus |
Light, whispy clouds that are made from ice crystals |
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Drought |
period of abnormally low rainfall resulting ina shortage of water |
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Rain Guage |
An instument used to measure the amount of precipitation (A.K.A. Rain) |
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Monsoon |
Sea and land breezes over a large region that change direction with the season |
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Electromagnetic Radiation |
Energy that travels through space in the form of waves |
