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Energy in Earth
Unit 10
| Term | Definition |
|---|---|
| Earth system | All of the nonliving things, living things, and processes that make up the planet Earth, including the solid Earth, the hydrosphere, the atmosphere, and the biosphere. |
| Geosphere | the mostly solid, rocky part of Earth; extends from the center of the core to the surface of the crust. |
| hydrosphere | the portion of Earth that is water. |
| Cryosphere | one of Earth’s spheres where water is in solid form, including snow cover, floating ice, glaciers, ice caps, ice sheets, and frozen ground permafrost. |
| Atmosphere | a mixture of gases that surrounds a planet, moon, or other celestial body . |
| Biosphere | the part of Earth where life exists; includes all of the living organisms on Earth. |
| Energy budget | a way to keep track of energy transfers into and out of the Earth system. |
| air pressure | the measure of the force with which air molecules push on a surface . |
| thermosphere | the uppermost layer of the atmosphere, in which temperature increases as altitude increases . |
| mesosphere | the layer of the atmosphere between the stratosphere and the thermosphere and in which temperature decreases as altitude increases. |
| stratosphere | the layer of the atmosphere that lies between the troposphere and the mesosphere and in which temperature increases as altitude increases; contains the ozone layer. |
| troposphere | the lowest layer of the atmosphere, in which temperature drops at a constant rate as altitude increases; the part of the atmosphere where weather conditions exist. |
| ozone layer | the layer of the atmosphere at an altitude of 15 to 40 km in which ozone absorbs ultraviolet solar radiation. |
| greenhouse effect | the warming of the surface and lower atmosphere of Earth that occurs when water vapor, carbon dioxide, and other gases absorb and reradiate thermal energy. |
| temperature | a measure of how hot or cold something is; specifically, a measure of the average kinetic energy of the particles in an object. |
| thermal energy | the total kinetic energy of a substance’s atoms. |
| thermal expansion | an increase in the size of a substance in response to an increase in the temperature of the substance. |
| heat | the energy transferred between objects that are at different temperatures. |
| radiation | the transfer of energy as electromagnetic waves. |
| convection | the movement of matter due to differences in density that are caused by temperature variations; can result in the transfer of energy as heat. |
| conduction | the transfer of energy as heat through a material. |
| wind | the movement of air caused by differences in air pressure ( |
| Coriolis effect | the curving of the path of a moving object from an otherwise straight path due to Earth’s rotation |
| global wind | the movement of air over Earth’s surface in patterns that are worldwide. |
| Jet stream | a narrow band of strong winds that blow in the upper troposphere |
| ocean current | a movement of ocean water that follows a regular pattern |
| surface current | a horizontal movement of ocean water that is caused by wind and that occurs at or near the ocean’s surface |
| deep current | a streamlike movement of ocean water far below the surface |
| convection current | the movement of matter due to differences in density that are caused by temperature variations; can result in the transfer of energy as heat |
| upwelling | the movement of deep, cold, and nutrient- rich water to the surface |
Created by:
Gerald Bataille
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