Weathering

Question 1

Weathering

Answer 1

Doesn’t involve the transportation of weathered materials

Breakup of rock

Question 2

Erosion

Answer 2

Involves the transportation of weathered materials

Shapes the earth

Question 3

Agents of erosion

Answer 3

Water
Ice
Wind
Gravity

Question 4

Physical/mechanical weathering

Answer 4

Breakup of rock

No change to composition

Question 5

Agents of weathering

Answer 5

Rain
Wind
Heat
Cold

Question 6

Chemical weathering

Answer 6

Decay of rock
Change of chemical composition
Prominent in tropical regions

Question 7

Types of physical weathering

Answer 7

Plant roots
Frost shatter
Thermal expansion
Exfoliation

Question 8

Plant roots

Answer 8

Grow into cracks and break rocks apart

Question 9

Thermal expansion

Answer 9

Prominent in regions of huge temp fluctuation

Heat= expand cold =contract

Question 10

Exfoliation

Answer 10

Thin layers of rock peel off outer surface of rock face.

Rocks formed at great pressure become exposed, no longer any pressure rock begins to come apart.

Question 11

Frost shatter

Answer 11

Northern temperate regions

Water entering cracks in rocks may freeze and expansion of the cracks overtime. Rock eventually breaks.

Question 12

Forms of chemical weathering

Answer 12

Solution
Hydrolysis
Oxidization

Question 13

Solution

Answer 13

CO2 combines with water to form carbonic acid

Question 14

Hydrolysis

Answer 14

Carbonic acids break down silicates (high clay content)

Question 15

Oxidization

Answer 15

Oxygen and water

iron oxide= rust