Year 12 coastal weathering key terms

What is the definition of mechanical weathering

• involves a chemical reaction and the generation of new chemical compounds

• can often speed up other types of weathering through the action of plants, bacteria or animals

• breaks down rocks due to the exertion of a physical force, it does not involve a chemical change

What is the definition of sub-aerial processes

• land based processes that occur above the waterline

• land based processes that occur below the waterline

Definition of chemical weathering

• involves a chemical reaction and the generation of new chemical compounds

• weathering breaks down rocks due to the exertion of a physical force, it does not involve a chemical change

• often speeds up other forms of weathering through the action of plants, bacteria or animals

definition of biological weathering

• often speeds up mechanical or chemical weathering through the action of plants, bacteria or animals

• involves a chemical reaction and the generation of new chemical compounds

• breaks down rocks due to the exertion of a physical force, it does not involve a chemical change

What are two examples of mechanical weathering?

• oxidation

• freeze-thaw

• plant roots

• salt cystallisation

What are two examples of biological weathering?

• solution

• Freeze-thaw

• Salt Crystallisation

• plant roots

• Rock boring

What are the three examples of chemical weathering?

• salt cystallisation, oxidation and carbonation

• oxidation, carbonation and rock boring

• carbonation, solution and oxidation

• solution, carbonation and plant roots

What is this an image of?

• Rock boring

• Chemical weathering

• Freeze-thaw Weathering

• Plant roots

What is this image showing?

• Solution

• Carbonation

• Oxidation

• Salt Crystallisation

what is this an image of?

• Oxidation

• Salt Crystallisation

• Solution

• Corrosion