1.2 Rock breaks up

• Aardrijkskunde
• Middelbare school
• vmbo t, mavo, havo, vwo
• Leerjaar 2

1.2 Rock breaks up

Part 1

Learning goals

- you understand why climate influences the nature and speed of weathering processes.

- You know how weathering works and know the difference between mechanical and chemical weathering.

- You can explain how caves are formed.

Lots of Relief

Eternal snow

Rocks

Alpine meadow

Conifers

Deciduous trees

Valley

Tree line

Snow line

Weathering

The breaking apart of rocks.

1. Mechanical weathering.

2. Chemical weathering.

Mechanical weathering

1. Due to the expansion and contraction of water with temperature changes -> Frost weathering

2. The expansion and shrinkage of the stone itself due to Large temperature changes

3. Biological weathering

The breaking down of rock by the roots of plants and trees.

Chemical weathering

The disintegration/dissolution of rock by fluid and oxygen: the composition of the rock is changing.

Look at source 13 in your TB

Make a short summary of the heading Chemical weathering about limestone and caves.

Make ex 2

from 1.2

1.2 Rock breaks up

Part 2

Make from 1.2
3 u/i 6