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Ch. 15 Atmosphere
Mr. De La Torre's Chap 15 The Atmosphere
| Question | Answer |
|---|---|
| Atmosphere | a mixture of gases that surrounds a planet. |
| Air pressure | the measure of the force with which air molecules are pushing on a surface. |
| Altitude | the height of an object about the Earth’s surface. |
| Troposphere | the lowest layer of the atmosphere. |
| Stratosphere | the atmospheric layer above the troposphere. |
| Ozone | a gas molecule that is made up of three oxygen atoms and that absorbs UV radiation from the Sun. |
| Mesosphere | the coldest layer of the atmosphere. |
| Thermosphere | the uppermost layer of the atmosphere. |
| Radiation | the transfer of energy as electromagnetic waves. |
| Conduction | The transfer of heat from one material to another by physical contact. |
| Convection | the transfer of heat by the circulation or movement of a liquid or gas. |
| Greenhouse effect | the natural heating process of a planet. |
| Global warming | a rise in average global temperatures. |
| Wind | moving air. |
| Coriolis effect | the turning of moving objects such as ocean currents or winds, caused by the Earth’s rotation. |
| Trade winds | the winds that blow from Europe to the New World. |
| Westerlies | wind belts found in both the Northern and Southern Hemispheres between 30 and 60 degrees latitude. |
| Polar easterlies | wind belts that extend from the poles to 60 degrees latitude in both hemispheres. |
| Jet streams | narrow belts of high speed winds that blow in the upper troposphere and the lower stratosphere. |
| Primary pollutants | pollutants that are put directly into the air. |
| Secondary pollutants | pollutants that form from primary pollutants that happen as a result of chemical reactions. |
| Acid precipitation | precipitation that contains acids. |
| Scrubber | a device that attaches to smokestacks to remove harmful pollutants. |