Rewis Science Cards Chapter 2, Part 2

Front 1

Small particles produced by weathering are called ____.

Back 1

sediment

Front 2

Weathered material moved from one place to another is called ______.

Back 2

erosion

Front 3

Weathering and erosion can take place at the same time. True or False

Back 3

True

Front 4

The primary force behind erosion is ________.

Back 4

gravity

Front 5

Factors that help with erosion are called ___ __ ___.

Back 5

agents of erosion

Front 6

What are the three agents of erosion?

Back 6

ice, water, and wind

Front 7

_______ occurs when wind, water or ice drop sediment in a new location

Back 7

deposition

Front 8

When sediment is dropped, the ________ particles settle first and the ____ particles settle last.

Back 8

heaviest

lightest

Front 9

Why does deposition (settled sediment) look layered?

Back 9

Because the heaviest particles settle first and the lightest particles settle last.

Front 10

When gravity is the primary force that moves rocks and sediment, ___ _____ occurs.

Back 10

mass movement

Front 11

___ ____ occurs when gravity slowly pulls soild down the slope of a hill, sometimes causing trees and fences to lean.

Back 11

soil creep

Front 12

___ ____ occurs when gravity pulls rock and other sediment off the side of a hill or mountain

Back 12

earth flow

Front 13

__ ____ occurs when water combines with soil and large masses of material move down a hill.

Back 13

mud flow

Front 14

__ ____ is one of the fastest and most devastating mass movements.

Back 14

mud flow

Front 15

_________ occur when large slabs of rock break off along a earth fault.

Back 15

rockslides

Front 16

____________ occur when large masses of ice rumble down the mountain.

Back 16

avalache

Front 17

The sediment that a stream carries is call its ____.

Back 17

load

Front 18

A (faster/slower) flowing stream rolls larger particles along its path.

Back 18

faster

Front 19

An area that commonly floods each year is known as a _____.

Back 19

floodplain

Front 20

An area of sediment at the mouth of the river is called a _____.

Back 20

delta

Front 21

The shape of the Mississippi Delta is so unusual that it has been named a __ ___.

Back 21

birdfoot delta

Front 22

_____ is also a force of erosion along ________.

Back 22

water

shoreline

Front 23

_____ and _____ constantly changes the shoreline.

Back 23

erosion and deposition

Front 24

Sand deposits are also called _______.

Back 24

sandbars

Front 25

Shallow places along the coast are called _____.

Back 25

shoals

Front 26

Storms such as _______ increase the erosion and deposition caused by waves.

Back 26

hurricanes

Front 27

Wind is a powerful agent of erosion in ______ areas, such as deserts.

Back 27

dry

Front 28

When wind blows, picks up loose sediment and carries it away, it is called ____.

Back 28

deflation

Front 29

___ ___ occur when the wind blows small, loose material into the air.

Back 29

dust storm

Front 30

___ ____ when sand is blown by the winds closer to the ground

Back 30

sand storm

Front 31

The prevailing or most constant wind determines the __ and ___of the sand dunes.

Back 31

size and shape

Front 32

_____ erode huge amounts of all kinds of sediment and rock.

Back 32

glaciers

Front 33

When glaciers pull large pieces of bedrock along, it is called _____.

Back 33

plucking

Front 34

When glaciers melt, it deposits the soil and rock it picked up into piles called _____.

Back 34

moraines

Front 35

___ _____ is rock that a glacier has ground into a fine powder.

Back 35

rock flower

Front 36

A glacier that melts faster than new snow falls is called a ____ ____.

Back 36

receding glacier

Front 37

People can cause erosion to occur faster than normal when they ____________.

Back 37

develop land and industry without thinking of the land