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Unit 4 Water and Air
Term | Definition |
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Aquifer | An underground layer of permeable tock that contains water. |
Atmosphere | The outer layer of gases of a large body in space. |
Biosphere | all living organisms on Earth, in the air, land, and water. |
cryosphere | The frozen layer of Earth's surface. |
Condensation | Process of water vapor cooling and changing into liquid water |
conduction | The transfer of heat energy from one substance to another through direct contact (two objects touching). |
convection | The transfer of energy from place to place by the motion of heated gas or liquid in Earth's mantle. |
Downwelling and Upwelling | When water moves to different levels of depth due to surface currants. |
Evaporation | Process by which liquid water turns to gas (water vapor). |
Global wind | wind belt that circles the Earth. |
Ground water | The water beneath the surface of the ground (consisting mainly of surface water that has seeped down). |
Hydrosphere | The water on or surrounding Earth's surface (includes water of the oceans and in the atmosphere). |
Impermeable | Water can't pass through the substance. |
Lithosphere | The crust and upper mantle of Earth. |
Ocean current | A mass of moving ocean water. |
Permeability | The ability of water to pass through porous rock or sediment. |
Pollution | The presence of a harmful or poisonous substance in the environment. |
Precipitation | Process by which water, inane form, falls from the atmosphere to Earth's surface. |
Radiation | Energy that travels across distance as certain types of waves. |
Runoff | Process of water flowing over the surface of the ground. |
Surface water | Water that collects on the surface of the ground. |
Transpiration | Process of water evaporating through the leaves of plants. |
Watershed | The area of land where all of the water that is under it or drains off it goes (collects in the same place). |
Water table | Underground surface of soil or rock that is saturated with water. |