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Unit 4 Water and Air
Term | Definition |
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Aquifer | an underground layer of permeable rock that contains water |
Atmosphere | the outer layer of gases of a large body in space |
Biosphere | all living things on Earth, land, and water. |
Cryosphere | the frozen layer of Earths surface |
Condensation | the transfer of heat energy from one substance to another through contact (two objects touching) |
Convection | the transfer of energy from place to place by the motion of heated gas or liquid in the Earth's mantel |
Downwelling and Upwelling | when the water moves to different levels of depth due to surface currents |
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 the Earth's surface (includes the water of the oceans and atmosphere) |
Impermeable | Water can't pass through the substance |
Lithosphere | The crust and upper mantel of the Earth |
Ocean Current | A mass of moving ocean water |
Permeability | the ability of water to pass through a porous rock or sediment |
Pollution | the presence of harmful or poisonous substance in the enviorment |
Precipitation | process by which water, in any form, falls from the atmosphere to Earth's surface |
Radiation | energy that travels across distances 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 the water that is under it or drains off of it goes (it collects to the same place) |
Water Table | underground surface of soil or rock that is saturated with water |