Chemical Weathering

Question 1

Oxidation

Answer 1

Causes rocks to disintegrate when oxygen gets dissolved in water reacts with rock minerals forming oxides and hydroxides

Question 2

Hydration

Answer 2

Makes the rock more susceptible to chemical weathering because of the minerals in the rock causes it to expand and weakens the rock

Question 3

Hydrolysis

Answer 3

Mildly acidic water reacts or combines with minerals in the rock to create clay and dissolvable salts. This weakens the parent rock.

Question 4

Carbonation

Answer 4

Carbon dioxide dissolved in rainwater makes a weak carbonic acid. This reacts with the rock (limestone) to create calcium bicarbonate which is easier to dissolve in water

Question 5

Solifluction

Answer 5

In summer the ground thaws and becomes saturated and lies on top of frozen ground, then the top layer begins to slide downslope