Weathering And Erosin

Question 1

The principle of ____ states that the processes on earth that are happening today, also happened in the past during all of earth’s history.

Answer 1

Uniformitariansim

Question 2

___ is the breaking down of rock by mechanical (physical) or chemical means.

Answer 2

Weathering

Question 3

There are ____ types of Weathering? What are they

Answer 3

Two
Mechanical
Chemical

Question 4

_____ weathering physically breaks rocks into smaller pieces

Answer 4

Mechanical

Question 5

______ and ____ are two types of mechanical weathering

Answer 5

Ice wedging/frost action
abrasion

Question 6

_____ breaks rocks mechanically when water soaks into cracks in rocks, freezes and then expands

Answer 6

Ice wedging

Question 7

_____ breaks rocks mechanically when rocks are smashed, scraped and ground against other rocks by water, wind, gravity or ice

Answer 7

Abrasion

Question 8

______ weathering breaks rocks down through chemical changes

Answer 8

Chemical

Question 9

_____ chemically combines oxygen and iron to form rust which makes rocks soft and crumbly

Answer 9

Oxidation

Question 10

_______ dissovles in water and forms carbonic acid which will dissolve rocks like marble and limestone

Answer 10

Carbon dioxide

Question 11

When humans burn fossil fuels, _____ mixes with rainwater and makes acid rain which will quickly dissolve rocks

Answer 11

Pollution

Question 12

Rocks weather ____ if they are softer or less dense

Answer 12

Faster

Question 13

Rocks weather ____ in hot, wet climates

Answer 13

Faster

Question 14

_______ is the movement of sediment by gravity, water, wind or ice

Answer 14

Erosion

Question 15

_______ is the process where weather and eroded rocks (sediment) is deposited, or laid down, in a new area and makes new landforms.

Answer 15

Deposition

Question 16

Weathering is the breaking down of rock by _____ or ____ means.

Answer 16

Mechanical

Chemical

Question 17

Mechanical weathering physically breaks rocks into ______

Answer 17

Smaller pieces

Question 18

Ice wedging/frost

Question 19

Ice wedging/ frost action and abrasion are two types of _______ weathering

Answer 19

Mechanical

Question 20

Ice wedging breaks rocks mechanically when ____ soaks into cracks in rock, ____ and then _____

Answer 20

Water

Freezes

Expands

Question 21

Abrasion breaks rocks mechanically when rocks are _____, _____ and ____ against other rocks by water, wind, gravity or ice

Answer 21

Smashed

Scraped

Ground

Question 22

Chemical weathering breaks down rocks through _____

Answer 22

Chemical changes

Question 23

Oxidation chemically combines _____ with ____ to form ____ which makes rocks soft and crumbly

Answer 23

Oxygen

Iron

Rust

Question 24

Carbon dioxide dissolves in water and forms _____ which willl dissolve rocks like ____ and ____

Answer 24

Carbonic acids

Marble

Limestone

Question 25

When humans burn fossil fuels, pollution mixes with rainwater and makes _____ which will dissolve rocks ____

Answer 25

Acid rain

Quickly

Question 26

Rocks weather faster if they are ___ or ____

Answer 26

Softer

Less dense

Question 27

Rocks weather faster in _____

Answer 27

Hot,wet climate

Question 28

Erosion is the movement of sediment by ____, ___, ____ or ____

Answer 28

Gravity,
Water
Wind
Ice

Question 29

Deposition is the process where weathered and eroded rock (sediment) is _____, or _____, in a new area and makes new landforms

Answer 29

Deposited

Laid down