Les 5 - Intro 1.3 vulkanen

Planning
  • Homework check
  • Start §1.3 Volcanoes
  • Types of volcanoes
  • Why do people live near volcanoes
1 / 17
next
Slide 1: Slide
AardrijkskundeMiddelbare schoolvwoLeerjaar 3

This lesson contains 17 slides, with interactive quizzes and text slides.

time-iconLesson duration is: 45 min

Items in this lesson

Planning
  • Homework check
  • Start §1.3 Volcanoes
  • Types of volcanoes
  • Why do people live near volcanoes

Slide 1 - Slide

Homework check

Slide 2 - Slide

Key words §1.3
Magma - Liquid rock in the earths mantle
Lava - Liquid rock from the earths mantle that comes out of the crater of a volcano
Crater - The place where magma flows out a volcano and turns into lava
Volcano - Place where liquid magma flows out from the earths mantle
Mid-ocean ridge - A place in the middle of an ocean where plates move apart and magma comes flowing out.

Slide 3 - Slide

Learning objectives
  1. You know what a volcano is and what the consequences of volcanic eruptions can be
  2. You understand how, and where volcanoes are formed 
  3. You understand why the consequences for people in poor countries differ from the consequences for people in rich countries.

Slide 4 - Slide

Mid-ocean ridge
This type of volcano froms when two oceanic plates move away from each other. This is what we call divergent plate movement. These volcanoes are usually quite calm, because the lava flowing out is not blocked by anything.
Magma
The liquid rock in the mantle is called magma
Subduction
Subduction happens when an oceanic plate dives below another plate. The plate that dives into the mantle melts and causes magma to start flowing up. This is what causes vulcanism.
Lava
As soon as the magma is outside the volcano it is called lava. 
Volcano
This is a volcano. A coneshaped mountain that can erupt and can have lava flowing out. When a volcano is formed by subduction the eruptions can be explosive, because the crater can get blocked by lava solidifying (stollen) in the crater.
Crater
The place where the magma leaves the volcano is called the crater
timer
3:00

Slide 5 - Slide

What is the difference between lava and magma?

Slide 6 - Open question

Mid-ocean ridges have explosive volcanos
A
True
B
False

Slide 7 - Quiz

Experiment
  • This will show why mid-ocean ridges are not explosive and normal volcanoes are.
  • Using balloons

Slide 8 - Slide

Statement: 29 million people worldwide live near volcanoes
A
True
B
False

Slide 9 - Quiz

Slide 10 - Link

Why do people still want to live near a volcano? (Everyone with three correct, or more, get a checkmark)

Slide 11 - Open question

Reasons to live near a volcano
  1. A good place for generating geo-thermal energy

Slide 12 - Slide

Reasons to live near a volcano
  1. A good place for generating geo-thermal energy
  2. The ground is fertile

Slide 13 - Slide

Reasons to live near a volcano
  1. A good place for generating geo-thermal energy
  2. The ground is fertile
  3. It is good for tourism

Slide 14 - Slide

Reasons to live near a volcano
  1. A good place for generating geo-thermal energy
  2. The ground is fertile
  3. It is good for tourism
  4. Cultural reasons
  5. lack of money for moving

Slide 15 - Slide

Are these reasons more important for people living in poor countries or people in rich countries?
A
Rich countries
B
Poor countries
C
Both
D
Neither

Slide 16 - Quiz

Homework
Assignment 1, 2, 3 and 6 of §1.3

Slide 17 - Slide