Shared Flashcard Set

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BSS ESC 11 CH 8-12 vocab
Chapter 10
20
Science
11th Grade
12/11/2008

Additional Science Flashcards

 


 

Cards

Term

Abraison

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Definition
Wearing away of rock by grinding action.
Term

Alluvial Fan

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Definition
Sloping triangular deposits of sediments located were a mountain stream reaches level land.
Term

Base Level

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Definition

Level of body of water into wich a stream flows.

Term

Bedload

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Definition
Sands, pebbles, and boulders,that are moved along the bed of a stream and that are to heavy to be carried in suspension.
Term

Carrying Power

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Definition
Measure of the total amount of sediment in a stream and the size of the particals being moved by the stream.
Term

Delta

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Definition
A fan-shaped deposit of sediment formed at the mouth of a stream or river.
Term

Discharge

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Definition
Volume of water flowing past a given point in a stream at a given time.
Term

Watershed or Drainage Baisn

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Definition
Area of land surface drained by a river system.
Term

Flash Flood

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Definition
Sudden rush of water, usually caused by a single cloudburst over the narrow valleyof a young mountain stream.
Term

Flood Plain

 

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Definition
Wide, level area that borders a stream and that is coverd by its water in time of flood.
Term

Gully

 

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Definition
A miniature valley formed by erosion by heavy rains.
Term

Headward Erosion

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Definition
Wearing away of landat the head of a gully or stream.
Term

leeves

 

Definition
river embankments built by deposition as the river floods.
Term

Meanders

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Definition
One of a series od broad, looping bends in streams.
Term

Ob Bow Lake

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Definition
The cresent shaped lake formed when a river meander gets cut off from the river and ends of the original bend have silted up.
Term

Pothole

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Definition
Deep oval or circular hole cut into a stream bed by abraison from swirling pebbles and sand.
Term

Solution

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Definition
State in wich mineral matter dissolved from bedrock is carried in a river.
Term

Stream Piracy

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Definition
The diversion of the upper part of one stream byt he headward growth of another stream.
Term

Suspension

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Definition
The state in wich rock materials carried by a river are stirred up and kept from sinking  by the turbulence of stream flow.
Term

Water Gap

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Definition
A pass in a moutain ridge through wich a stream flows.
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