Weathering

Question 1

Process of breakdowns of rocks at the Earth’s surface

Answer 1

Weathering

Question 2

What are the 6 agents of weathering?

Answer 2

Water, salt, temperature, plants, animals, gravity

Question 3

Takes in liquid and solid form (physical and chemical)

Answer 3

Water

Question 4

Haluclasty

Answer 4

Salt

Question 5

Thermal stress (rocks expands and contracts)

Answer 5

Temperature

Question 6

Sprout in soil collected on rocks

Answer 6

Plants

Question 7

Changing temperature and sometimes assisted by water

Answer 7

Physical weathering

Question 8

When rocks surface is frequently exposed to water, wind, and gravity

Answer 8

Abrasion

Question 9

When water continually seeps into cracks, freezes, and expands, eventually breaking the rock apart.

Answer 9

Freeze-thaw

Question 10

Happens cracks develop parallel to the land surface as a consequence of the reduction in pressure (onion skin weathering)

Answer 10

Exfoliation

Question 11

Caused by rainwater reacting with the mineral grains in rocks to form minerals (clays) and soluble salts

Answer 11

Chemical weathering

Question 12

Carbon dioxide in the air dissolves in rainwater and becomes weakly acidic

Answer 12

Carbonation

Question 13

Breakdown of rock by acidic water to produce clay and soluble salts

Answer 13

Hydrolisis

Question 14

When water reacts chemically with the rock’s chemical structure

Answer 14

Hydration

Question 15

By oxygen and water, often giving iron rich rocks a rusty colored weathered surface

Answer 15

Oxidation