2.2 The history of earth

• Aardrijkskunde
• Middelbare school
• vwo
• Leerjaar 3

Today

Questionnaire: How to be at our best? (15 min.)

Check the learning objectives of 3.1 (5 min.)

2.2 + 2.3 (15 min.)

Work on assignment (20 min.)

What we don't want

What we do want

To do

Go to SOM and open the link that's in todays lesson.

Take about 10 minutes to fill in the questionnaire.

Finished? Start reading 2.2 on page 30 and 31 of your book.

Learning objectives for these 3 weeks

• You know how the Earth has changed over the past 4,5 billion years.
• You can explain how rock layers and fossils tell a lot about the geological history of the Earth.
• You can explain the difference between relative and absolute time.
• You can mention several different types of mineral resources and can explain how they are formed.
• You can explan why Europe is depend on other countries for mineral resources.
• You can explain why the European list of critical resources is not the same as the list of worldwide scare mineral resources.

The origin of Earth

Precambrium

Learning objectives for these 3 weeks

• You know how the Earth has changed over the past 4,5 billion years.
• You can explain how rock layers and fossils tell a lot about the geological history of the Earth.
• You can explain the difference between relative and absolute time.
• You can mention several different types of mineral resources and can explain how they are formed.
• You can explan why Europe is depend on other countries for mineral resources.
• You can explain why the European list of critical resources is not the same as the list of worldwide scare mineral resources.

How does a fossil end up in a rock?

Mammoth

What does the finding of a mammoth at the bottom of the North Sea tell us?

• the climate was colder then
• the North Sea was once dry

Limestone

What can you tell about the past when you encounter limestone?

• there was once a sea there
• sea creatures once swam in the sea whose lime skeletons fell to the bottom

Types of rock

There are three types of rock:

• Sedimentary
• Igneous (like granite)
  
• Metamorphic (marble)
  

Absolute

Relative

Absolute and relative age

Mineral resources

Substances we extract from earth that are useful to humans.

• Metals
• Fossil fuels
• Various raw materials (such as table salt)

Get to work

Work on the practical assignment.