Part of weathering (Chemical)

Question 1

Name the types of CHEMICAL weathering

Answer 1

> Solution weathering
Hydrolysis (limestone pavement with grites and clints
Honeycomb weathering
Oxidation

Question 2

Explain what SOLUTION weathering is:

Answer 2

Minerals or soluble chemicals in the rock, dissolve directly in water

Question 3

Give an example of something that has formed because of SOLUTION weathering

Answer 3

Salt

Question 4

When large areas of bedrock forms sinkholes, this is because of which type of weathering?

Answer 4

Solution weathering

Question 5

Explain what HYDROLYSIS is

Answer 5

It is LIMESTONE PAVEMENT with grites and clints

Question 6

How does a limestone pavement with grites and clints form?

Answer 6

• a mineral in the rock dissolves because of rain
• the rock weakens and breaks up
• the limestone forms GROOVES called GRITES
• the flat-topped ridges are called CLINTS

Question 7

What do you call the “structure” when underground limestone is dissolved?

Answer 7

Limestone CAVES

Question 8

Name 3 things you will find in a Limestone Cave

Answer 8

1) Stalagmites
2) Stalactites
3) Calsite Pillars

Question 9

Explain HONEYCOMB Weathering

Answer 9

This is when DIFFERENT minerals dissolve at DIFFERENT rates
Minerals with faster chemical reaction breaks down FIRST, leaving small holes in the rock (this looks like a honeycomb)

Question 10

Explain OXIDATION

Answer 10

Minerals in the rock reacts with OXYGEN and produces a RED or YELLOW oxide or hydroxide

Question 11

When IRON mixes with OXYGEN to form IRON IOXIDE, it is referred to as RUST. What type of Chemical Weathering is this?

Answer 11

Oxidation