Section
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Detail
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Key Ideas
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Terms
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Distribution, Richter Scale, seismograph, Mercalli Scale, focus, shock waves, epicentre.
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Starter
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Main
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1. TDIT
2. Using H p18 answer the following questions:
3. What is the difference between a seismometer and a seismograph?
4. What do the Richter and Mercalli scales measure?
5. Explain how an earthquake measuring 6 on the Richter scale is 100 times stronger than one measuring 4.
6. What number on the Mercalli scale is an earthquake likely to be if it is the top story on the BBC news? Does this depend on the country the earthquake occurs in?
7. On what type of plate boundary do most earthquakes happen? Explain why many strong earthquakes occur along destructive plate margins.
8. Why are tectonic stresses lower along constructive plate boundaries? 9. Draw a diagram to illustrate the terms; focus, shock waves, and epicentre. 10. Read eyewitness accounts of earthquake survivers |
Plenary
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Run through 'Earth shakes, rattles and rolls' powerpoint.
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BBC Earthquakes Video - Starter