2.1 The face of the Earth is changing

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• Middelbare school
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• Leerjaar 3

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Test chapter 1

2.1 The  face of the Earth is changing

Instruction practical assignment

Your opinion on life of Earth

Learning objectives 

• 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.

The origin of Earth

Correct or incorrect?
When the Earth was created, it cooled quickly.

1. Correct
2. Incorrect

Correct or incorrect?
As a result of volcanic activity, CO2 and water vapour were released into the atmosphere.

1. Correct
2. Incorrect

Correct or incorrect?
Water vapour condensed and formed the current oceans.

1. Correct
2. Incorrect

Correct or incorrect?
About three million years ago, bacteria formed from which later more complex life forms were created.

1. Correct
2. Incorrect

Precambrium

Precambrium

• continents appeared
• the Earth froze several times
• only life under water

At the era of the period, the first life forms appeared on the surface of the Earth.

Palaeozoic

• continents move towards each other
  
• supercontinent Pangaea is formed
  

Mesozoic

• plants and animals change
• period of the dinosaurs
• Pangaea breaks apart and current continents are formed

Cenozoic

• extinction of the dinosaurs
• life as we now know it exists (with at the end of the period: man)

Mass extinctions

When a large part of all life on Earth disappears it is called a: mass extinction

The causes of mass extinctions are diverse and unclear.

• 440 million years ago it got colder and large areas of land were covered with land ice.
• 65 million years ago, a large meteorite impact caused a lot of dust in the atmosphere. As a result, many plants and animals died.

how to remember? 

Camels Often Sit Down Carefully, Perhaps Their Joints Creak? 

(Cambrian, Ordovician, Silurian, devonian, Carboniferious, Permian, Triassic, Jurassic and Cretaceous) 

These are only of the Paleozoic and Mesozoic!

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Get to work

Page 42 of the workbook: Enrichment 2.1

Make the assignment.

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