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37 Cards in this Set

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Small particles produced by weathering are called ____.
sediment
Weathered material moved from one place to another is called ______.
erosion
Weathering and erosion can take place at the same time. True or False
True
The primary force behind erosion is ________.
gravity
Factors that help with erosion are called ___ __ ___.
agents of erosion
What are the three agents of erosion?
ice, water, and wind
_______ occurs when wind, water or ice drop sediment in a new location
deposition
When sediment is dropped, the ________ particles settle first and the ____ particles settle last.
heaviest

lightest
Why does deposition (settled sediment) look layered?
Because the heaviest particles settle first and the lightest particles settle last.
When gravity is the primary force that moves rocks and sediment, ___ _____ occurs.
mass movement
___ ____ occurs when gravity slowly pulls soild down the slope of a hill, sometimes causing trees and fences to lean.
soil creep
___ ____ occurs when gravity pulls rock and other sediment off the side of a hill or mountain
earth flow
__ ____ occurs when water combines with soil and large masses of material move down a hill.
mud flow
__ ____ is one of the fastest and most devastating mass movements.
mud flow
_________ occur when large slabs of rock break off along a earth fault.
rockslides
____________ occur when large masses of ice rumble down the mountain.
avalache
The sediment that a stream carries is call its ____.
load
A (faster/slower) flowing stream rolls larger particles along its path.
faster
An area that commonly floods each year is known as a _____.
floodplain
An area of sediment at the mouth of the river is called a _____.
delta
The shape of the Mississippi Delta is so unusual that it has been named a __ ___.
birdfoot delta
_____ is also a force of erosion along ________.
water

shoreline
_____ and _____ constantly changes the shoreline.
erosion and deposition
Sand deposits are also called _______.
sandbars
Shallow places along the coast are called _____.
shoals
Storms such as _______ increase the erosion and deposition caused by waves.
hurricanes
Wind is a powerful agent of erosion in ______ areas, such as deserts.
dry
When wind blows, picks up loose sediment and carries it away, it is called ____.
deflation
___ ___ occur when the wind blows small, loose material into the air.
dust storm
___ ____ when sand is blown by the winds closer to the ground
sand storm
The prevailing or most constant wind determines the __ and ___of the sand dunes.
size and shape
_____ erode huge amounts of all kinds of sediment and rock.
glaciers
When glaciers pull large pieces of bedrock along, it is called _____.
plucking
When glaciers melt, it deposits the soil and rock it picked up into piles called _____.
moraines
___ _____ is rock that a glacier has ground into a fine powder.
rock flower
A glacier that melts faster than new snow falls is called a ____ ____.
receding glacier
People can cause erosion to occur faster than normal when they ____________.
develop land and industry without thinking of the land