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earths system
unit 2
| Question | Answer |
|---|---|
| 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 |
| Cyrosphere | 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 |
| Mesophere | the layer of the atmosphere between the stratosphere and the thermosphere and in which temperature decreases as altitude increase |
| 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 earths atmosphere. |
| ozone layer | the layer of the atmosphere at an altitude of 15 to 40 km in which ozone absorbs ultraviolet solar radiation |
| greenhouse effect | he warming of the surface and lower atmosphere of Earth that occurs when water vapor, carbon dioxide, and other gases absorb and reradiate thermal energy |
| Tempature | 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 | he movement of air over Earth’s surface in patterms that are worldwide |
| jet stream | a narrow band of strong winds that blow in the upper troposphere |
| local wind | the movement of air over short distances; occurs in specific areas as a result of certain geographical features |
| Ocean current | the horizontal movement of water in the uppermost layer of the ocean, primarily caused by prevailing winds |
| surface current | the horizontal movement of water in the uppermost layer of the ocean, primarily caused by prevailing winds |
| deep current | a large-scale, slow movement of seawater in the deep ocean, driven primarily by differences in water density caused by temperature and salinity variations |
| Convetion current | a circular flow of fluid (a liquid or gas) caused by differences in temperature and density |
| Upwelling | a rising of seawater, magma, or other liquid. |
Created by:
Sailor Allen