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Chapter 15 1-3
Vocabulary
| Term | Definition |
|---|---|
| Atmosphere | a mixture of gases that surrounds the Earth and protects us from the Sun's harmful Ultra-Violet waves |
| Air Pressure | The measure of the force with which air molecules push on a surface |
| Troposphere | Tropo means turn & change; the troposphere is the layer where gases turn and mix |
| Stratosphere | Strato means layer; in the Stratosphere gases are in layers and do not mix very much |
| Mesosphere | Meso means middle; the mesosphere is the middle and coldest layer |
| Thermosphere | Thermo means heat; the Thermosphere is the warmest layer of the atmosphere |
| Ions | Electically charged particles |
| Ionosphere | The thermosphere where ions are |
| Auroras | Ions traveling through the ionosphere |
| Radiation | The transfer of energy through EM waves without touching |
| Thermal Conduction | Transfer of thermal energy through a material |
| Convection | the transfer of thermal energy by circulation of movement of a liquid or gas |
| Convection Currents | Warm air rising and cooler air sinking is a circular movement called... |
| Global Warming | an increase in average global temperatures |
| Greenhouse Effect | The process by which gases in the atmosphere absorb thermal energy and radiate it back to Earth |
| Wind | The movement of air caused by differences in air pressure |
| Coriolis Effect | The apparent curving of the path of winds and ocean currents due to Earth's rotation |
| Global Winds | Convection cells and Coriolis Effect produce... |
| Polar Easterlies | Wind belts that extend from the poles to 60 degrees latitude in both hemispheres |
| Westerlies | The wind belts found between 30 and 60 degrees latitude in both hemispheres |
| Trade Winds | In both hemispheres the winds that blow from 30 degrees latitude almost to the Equator |
| Doldrums | The trade winds of the northern and southern hemispheres meet in an area around the equator |
| Horse Latitudes | At about 30 degrees North and South latitude sinking air creates an area of high pressure. The wind at this location are weak. |
| Jet Stream | Narrow belts of high speed winds that blow in the upper troposphere & low stratosphere |
Created by:
Megan McGlathery
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