Science (4th) Ch. 5 Lesson 3 - Weathering and Erosion (vocab & notes)

Question 1

the breaking down of rocks into smaller pieces

Answer 1

weathering

Question 2

the removing of weathered rock

Answer 2

erosion

Question 3

the dropping off of eroded soil and bits of rock

Answer 3

deposition

Question 4

a large, slow-moving buildup of snow and ice

Answer 4

glacier

Question 5

the downhill end of a glacier where glacial till and other debris are deposited

Answer 5

terminus

Question 6

mounds of rocky materials deposited at the edge of a glacier

Answer 6

moraine

Question 7

The ___________ can create features by depositing the sediment it is carrying.

Answer 7

wind

Question 8

Wind that slows down after passing a rock or going over a hill loses energy. The wind will then drop any sand it may be carrying, forming ______________. This dropping is called _____________.

Answer 8

sand dunes

deposition

Question 9

Rock is broken down and moved to another place during the process of __________ and __________.

Answer 9

weathering

erosion

Question 10

_________ & ___________ are two types of physical weathering.

Answer 10

freezing

thawing

Question 11

Freezing & thawing are two types of ____________.

Answer 11

physical weathering

Question 12

_________ & _________ are also causes of physical weathering.

Answer 12

plants growing

flowing water

Question 13

Plants growing & flowing water are also causes of _____________ weathering.

Answer 13

physical

Question 14

If a rock contains ______, air and water can react with the iron through _____________ and form ________.

Answer 14

iron
chemical weathering
rust

Question 15

The surface of the Earth is changed ________ by ___________, earthquakes, and _____________.

Answer 15

rapidly
landslides
avalanches

Question 16

True or False

When a glacier bottom begins to melt, the glacier begins to slide and tears at the ground.

Answer 16

True

Question 17

The _________ of rock debris carried by a glacier are called ______________.

Answer 17

mounds

moraines

Question 18

Large rocks left behind by glaciers are known as _____________.

Answer 18

glacial debris

Question 19

The slow process that breaks rocks into smaller pieces is called ________________.

Answer 19

weathering

Question 20

A rock is broken apart by ______________ weathering if the rock type does not change.

Answer 20

physical

Question 21

If a rock contains iron, air and water can react with the iron through ____________ and form rust.

Answer 21

chemical weathering

Question 22

The weathering and removal of rock from one place to another is called __________.

Answer 22

erosion

Question 23

Erosion can be caused by glaciers, wind, moving water, and ______________.

Answer 23

gravity

Question 24

When the Colorado River eroded the land around the river in Arizona, the _______________ was formed.

Answer 24

Grand Canyon

Question 25

Glaciers form in very cold places as thick ____________ of ice.

Answer 25

sheets

Question 26

As the weight of the overlying ice increases, the glacier begins to ________________.

Answer 26

melt and flows.

Question 27

Deposits left behind by a glacier are called ______________ and _____________.

Answer 27

glacial debris

glacial till

Question 28

The mounds that form where till builds up are called _______________.

Answer 28

moraines.

Question 29

Most processes change land slowly, but people can make ___________ changes.

Answer 29

fast

Question 30

People change the land by _____________ it to get minerals, metals, or fuels.

Answer 30

mining