This presentation gave a good lesson on the causes of earthquakes and volcanoes.

1. The causes of earthquake and
volcanoes
• Learning Objective
To be able to explain why earthquakes and
volcanoes occur
• Success Criteria
To identify that the Earths plates move in four
ways
To describe what happens at a plate boundary

2. 1) Crust
2) Mantle (magma/ molten rock)
3) Outer/ Inner core
The earth is divided into three section

3. Two types of Earth crust
1) Continental crust – Thick but light
2) Oceanic crust – Thin but dense (heavy)

4. The earths crust is divided into a
number of tectonic plates

5. Plates move in different directions.
Match the diagram with the correct
caption
• Plates move towards
each other
• Plates move away from
each other
• Plates slide past each
other
• Plate slides under
another plate

6. Plates towards each other !!

7. Plates move away from each
other.

8. Plates slide past each other !

9. Plates slide under each other!

10. Plates slide under each other!