Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
37 Cards in this Set
- Front
- Back
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
|