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Unit 1 – Topic 1 – Restless Earth

Unit 1 – Topic 1 – Restless Earth. On your A3 sheet: What key terms can you remember?. Plate boundaries. Typical exam question: (4Marks) Explain why earthquakes happen on destructive plate margins. You may draw a diagram to help your answer. What are the triggers in this question?.

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Unit 1 – Topic 1 – Restless Earth

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  1. Unit 1 – Topic 1 – Restless Earth On your A3 sheet: What key terms can you remember?

  2. Plate boundaries Typical exam question: (4Marks) Explain why earthquakes happen on destructive plate margins. You may draw a diagram to help your answer. What are the triggers in this question? Have a go!

  3. What did you get?

  4. A* answer A Destructive margin is where 2 plates collide. One plate is sub-ducted under the other one. Usually a oceanic plate is sub-ducted under a continental plate. There is friction between the two plates. The pressure builds and eventually gives way, The energy release is the land shaking, called an earthquake. I find diagrams easier than Writing…. Draw a labelled Diagram to help answer the Q

  5. Case Studies: What are they?

  6. Case studies Volcanoes Earthquakes DEVELOPED Japan – Nigata, or most recent Sendai DEVELOPING Haiti, Caribbean Backup: Sichuan, China • DEVELOPED Mt St Helens (Washington State, Western USA) • DEVELOPING Mt Nyiragongo – Democratic Republic of Congo, African Rift Valley • Backup: Sakurajima, Japan

  7. More exam questions • Describe one way a region affected by earthquakes can prepare for an earthquake hazard. (2) • Using an example(s), describe the effects of earthquakes on people and property. (4) • Suggest one reason why the number of deaths varies between earthquakes. (2) • For either an earthquake or a volcanic eruption you have studied, describe the immediate responses in managing its impact. (4)

  8. http://canarygeog.canaryzoo.com/Fling%20the%20Teacher%20Geography/Tectonic%20Plates%201.htmlhttp://canarygeog.canaryzoo.com/Fling%20the%20Teacher%20Geography/Tectonic%20Plates%201.html

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