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science
Term | Definition |
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evaporation | a type of vaporization of a liquid that occurs from the surface of a liquid into a gaseous phase that is not saturated with the evaporating substance. |
condensation | the change of the physical state of matter from gas phase into liquid phase, and is the reverse of evaporation. |
precipitation | any product of the condensation of atmospheric water vapor that falls under gravity. |
transpiration | the process where plants absorb water though the roots and then give off water vapor through pores in their leaves. |
runoff | he draining away of water (or substances carried in it) from the surface of an area of land, a building or structure, etc. |
groundwater | water held underground in the soil or in pores and crevices in rock. |
source | obtain from a particular source. |
mouth | an opening or entrance to a structure that is hollow, concave, or almost completely enclosed. |
velocity | the speed of something in a given direction. |
bed load | describes particles in a flowing fluid (usually water) that are transported along the bed. bed load moves by rolling, sliding, and/or saltating (hopping). |
tributaries | a river or stream flowing into a larger river or lake. |
topography | the distribution of parts or features on the surface of or within an organ or organism. |
gradient | an increase or decrease in the magnitude of a property (e.g., temperature, pressure, or concentration) observed in passing from one point or moment to another. |