agents of erosion (part 1)

Question 1

breaking rock because of the exposure of processes on earths surface

Answer 1

weathering

Question 2

removing and transporting materials by natural agents

Answer 2

erosion

Question 3

materials or sediments settle down in another location

Answer 3

deposition

Question 4

rock is broken into smaller pieces of the same material without changing its composition

Answer 4

mechanical weathering

Question 5

rocks minerals change into different substances

Answer 5

chemical weathering

Question 6

downward transportation of rocks or soil by gravity

Answer 6

mass movement

Question 7

slow, barely noticeable movement of soil down a slope

Answer 7

creep

Question 8

blocks of land move downhill along a surface that curves into the slope, caused when the slope is too steep

Answer 8

slump

Question 9

mass of weathered material that has been saturated with water flows downhill

Answer 9

earthflows

Question 10

rapid movement that contains LARGE amounts of suspended clay and silt

Answer 10

mudflows

Question 11

movement of a mass of bedrock or loose soil and rock down the slope of a hill, mountain or cliff

Answer 11

landslide/rockslide

Question 12

rock fragments that have been weathered from a cliff and pulled down by gravity

Answer 12

talus

Question 13

mudflows that follow volcanic eruptions

Answer 13

lahar

Question 14

a cloud of debris mixed with air that rushed down steep slopes at fast paces usually with snow

Answer 14

avalanche

Question 15

these pick up and moves particles ranging from small to huge sizes

Answer 15

glaciers

Question 16

when glaciers move they scrape on the rocks and pull pieces of rocks away what is this called

Answer 16

plucking

Question 17

glaciers can ____ due to the weight of small grains of ice being melted which acts as a lubricant for the glacier and also bc of the flattened ice grains which can glide past other grains

Answer 17

move

Question 18

glacier that moves within valley walls

Answer 18

valley glacier

Question 19

glacier that covers a large part of a continent

Answer 19

continental glacier

Question 20

glaciers erode bedrock by dragging particles and creating long parallel grooves called _________ and smooth the rock

Answer 20

striations

Question 21

what shape do glaciers carve out on the valley floor

Answer 21

U

Question 22

when rock material is eroded by glacial ice where can it be carried

Answer 22

top, inside, or below

Question 23

unsorted sediment deposited by a glacier

Answer 23

till

Question 24

a large deposit of till

Answer 24

moraine

Question 25

large boulders left behind by a glacier

Answer 25

erratic

Question 26

removal of loose rock particles by the wind

Answer 26

deflation

Question 27

wearing away of rock material by windblown sand

Answer 27

abrasion

Question 28

rocks blasted into interesting shapes by wind

Answer 28

ventifact

Question 29

strong winds lift a lot of silt and clay from topsoil which results in a ____ _______

Answer 29

dust storm

Question 30

unlayered silt sized particles deposited by the wind

Answer 30

loess

Question 31

hills of sand deposited by the wind

Answer 31

sand dunes

Question 32

when the river is carrying the silt, clay and fine sand

Answer 32

suspension

Question 33

when the river contains dissolved mineral matter from the bedrock

Answer 33

solution

Question 34

when the river rolls the sand, pebbles, and boulders along the bottom

Answer 34

bed load

Question 35

what shape do rivers erode in

Answer 35

V

Question 36

when a stream cannot erode its bed to a level any lower than the level of the largest body of water into which it flows this is called the

Answer 36

base level

Question 37

water deposits its sediments when either the rivers ______ or the amount of water _________

Answer 37

energy, decreases

Question 38

water deposits things faster (outside or inside) and slower (outside or inside)

Answer 38

outside, inside

Question 39

curvy river

Answer 39

meanding river

Question 40

river flows into a larger body of water causing sediments to deposit in a fan shape

Answer 40

delta

Question 41

when a mountain stream meets the flat base of the mt.

Answer 41

alluvial fan

Question 42

when rivers erode till they cut through something and then deposit sediment this is called an

Answer 42

oxbow lake