River Systems

Holt earth science chapter 15. River system.

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Water cycle
The continuous movement of water between the atmoshere, the land, and the oceans
Evapotranspiration
The total loss of water from an area
Condensation
The change of state from a gas to a liquid
Precipitation
Any form of water that falls to earths surface from the clouds
Desalination
A process of removing salt from ocean water
Tributary
A stream that flows into a lake or into a larger stream
Watershed
The area of land that is drained by a river system
Stream load
The materials other than the water that is carried by a stream
Discharge
The volume of water that flows within a given time
Gradient
The change in elevation over a given distance
Meander
One of the bends, twists, or curves in a low-gradient stream or river
Braided stream
A stream or river that is composed of multiple channles that divide and rejoin around sediment bars
Delta
A fan-shaped mass of rock material deposited at the mouth of a stream; deltas form where streams flow into the ocean at the edge of a continent
Alluvial fan
A fan-shaped mass of rock material deposited by a stream when the slope of the land decreases sharply; alluvial fans form when streams flow from mountains to flat land
Floodplain
An area along a river that forms from sediments deposited when the river overflows its banks