§2.1 How the Alps were formed part 2

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• Leerjaar 2

§2.1 How the Alps were formed

Program

• Homework check + books
  
• Discuss assignment 5
  
• Throwback
• New notes
  
• Home work
  
• The end
  

Books check & homework

Three students check homework
Books all with you?

Discuss assignment 5

In which country do the Alps not occur?

1. France
2. Germany
3. Croatia
4. Slovenia

The Alps are a folding mountain range. The formation of a folding mountain range happens through a ...

1. endogenic forces
2. exogenic forces

What type of rock has the characteristic layers?

1. metamorphic rock
2. sedimentary rock
3. igneous rock
4. all

What kind of rock is created by high pressure?

1. igneous rock
2. sedimentary rock
3. metamorphic rock
4. All

In what rock did they find the fossils in the Alps?

1. metamorphic rock
2. sedimentary rock
3. igneous rock
4. all

At what plate movement do folding mountains form?

1. Side by side
2. Toward each other
3. Separation

Plate tectonics means

1. That the earth's crust consists of earth plates
2. The movement of the earth's plates
3. Moving the earth's crust
4. That the earth's crust floats on magma

The Alps formed as a result of endogenous forces.
But in what order do they do so?

1

2

3

4

Earth's plates collide, creating the mountain range Alps

Inside the earth flows a viscous mass (magma) on which plates of earth float.

Earth's plates Europe and Africa are moving toward each other due to flowing magma.

The earth consists of a core surrounded by a mantle and capped by the thin crust of the earth.

New notes

young mountain range

old mountain range

30 million years old

200 million years old

young maintain range vs old mountain range

How do mountains get smaller?

• Why is it that one mountain is higher than another?

• It all has to do with the age of the mountain range and
  
• exogenic forces: these forces cause the mountain to slowly wear down

Weathering

The disintegration (uit elkaar vallen) of rocks by weather and plant growth

Types of weathering

Chemical weathering -  is weathering that changes the composition of rock.

Mechanical weathering - when rocks crumble and disintegrate without any changes to their chemical composition

Frost weathering - When water freezes it expands, making the cracks wider and causing chunks of rock to break off

Erosion

Process by which hard rock is broken down and worn away by water, ice or wind that contains weathered material.

Let's make your homework

Make §2.1 assignments 2, 6, 7, 8, 9 and 10

Homework for next lesson (Thursday)