Forming of the alps: introduction to the Rhine

• Aardrijkskunde
• Middelbare school
• vwo
• Leerjaar 2

At the end of this lesson you are:

-Able to explain what an endogenic and exogenic force is

-Able to explain how the alps are formed

-Able to explain the difference between weathering and erosion

Endogenic & exogenic forces

Endogenic forces

Forces from within the Earth, that changes the Earth's crust.

Exogenic forces

Forces from outside the Earth, that changes the Earth's crust.

Write down examples in your notebook

Endogenic forces: ............

Exogenic forces: ..............

The formation of the Alps

• Faults in the earth are caused by endogenic forces, we call these faults slabs or plates. 
• The African and Eurasian plate began to move. 
• They pushed the sedimentary layers forward, the sea bed folded into fold mountains. 

What did the oceanic crust say when it ran into the continental plate? My fault!

Young mountainranges         

Old mountainranges

Weathering

Weathering: 

Rocks fall apart under the influence of weather.
or: Weathering is the disintegration of rock through the influence of weather and vegetation. 

-Biological weathering

-Chemical weathering

-Mechanical weathering

Erosion

Erosion: 
 the abrasion of hard rock by water, ice and wind laden with weathered material.

Chemical weathering

Old buildings and statues show traces of chemical weathering.

The speed at which this chemical weathering occurs depends on the climate.

.

Mechanical weathering

1Water freezes in small cracks in rocks high in the mountains or in winter. 2When water freezes it expands, and that puts pressure on the rock. 3.Then the ice melts during the day.
4. If that happens over and over again, the rock cracks and breaks apart.

Weathering by frost

Erosion:

The abrasion of hard rock by water, ice and wind laden with weathered material.

Abrasion = 

Laden = 

Finished? Work on paragraph 2.2 exercise 1 and 2.

Weathering:

Rocks fall apart under the influence of weather.

or: Weathering is the disintegration of rock through the influence of weather and vegetation.

-Biological weathering example......

-Chemical weathering example.......

-Mechanical weathering example.....

Disintegration= 

Note!!!!

Meaning disintegration

Disintegration = verval

Meaning abrasion

Abrasion = slijtage

Meaning laden

Laden = beladen. of loaded.

On the photo you
can see a form of...

1. Weathering
2. Erosion

Erosion can happen without weathering

1. yes
2. no

Erosion is the transport of the sediments, weathering is the breaking down of materials

1. True
2. False

The glacier melts, the rocks in the glacier are left behind...

1. Erosion
2. Transportation
3. Deposition

When it flows fast it picks up materials.
What is it?

1. Erosion
2. Deposition

True or false?
Once, all the continents were connected to each other.

1. True
2. False

In the rock cycle, rocks are broken down into sediments. This happens because of these processes:

1. Heat and pressure
2. Pressure and cementation
3. Weathering and erosion
4. Melting

How are the alps formed?

How did the Rhine form?

Which exogenic force gives the mountains its shape?

Search as many keywords about the RHine as possible in the book)