Weathering

Rocks are broken up into fragments; does not change the identity of the rock.

• chemical weathering

• erosion

• mechanical weathering

• deposition

Water gets into cracks, expands when it freezes, and causes cracks to widen.

• chemical weathering

• ice wedging

• oxidation

• abrasion

Grinding or breaking up of rocks as they collide.

• abrasion

• ice wedging

• plan weathering

• animal weathering

Roots grow into rocks absorbing minerals from the rock and causing cracks.

• oxidation

• animal weathering

• ice wedging

• plant weathering

Changes the material of the rock to a new material.

• erosion

• chemical weathering

• mechanical weathering

• abrasion

Combines the element oxygen with other elements or molecules.

• oxidation

• abrasion

• acidity

• ice wedging

Water is important in chemical weathering because most substances dissolve in water.

• true

• false

Chemical weathering is the fastest in what type of climate?

• warm and wet

• warm and dry

• cold and wet

• cold and dry

What type of weathering occurs when iron content in rocks turns a reddish color?

• abrasion

• oxidation

• mechanical weathering

• acidity

When a rock expands and contracts due to frequent and significant temperature changes.

• thermal expansion

• abrasion

• chemical weathering

• oxidation