Earthquakes and Volcanoes

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Across
  1. 2. line where two tectonic plates meet
  2. 3. a mountain or hill where lava comes out
  3. 6. a scale used to measure the strength of an earthquake
  4. 10. secondary tremors that may follow the largest shock of an earthquake
  5. 12. surface along which rocks brake and move
  6. 13. a sudden and violent shaking of the ground
  7. 14. large pieces that make up Earth's crust and upper mantle
  8. 15. rocks that have changed as a result of heat and pressure
  9. 17. a solid mineral material
  10. 18. a long high sea wave caused by an earthquake or other disturbance
Down
  1. 1. plates the pieces of land that make up the earth
  2. 4. the crust and upper layer of the earth
  3. 5. approx 95 - 97% of all the earths rocks
  4. 7. rocks formed by the collection of sediments in the layers
  5. 8. molten rock flowing onto Earth's surface
  6. 9. hot, melted rock that forms deep inside Earth
  7. 11. waves a wave of energy that is generated by an earthquake
  8. 15. the strength of an earthquake
  9. 16. the outer layer of the earth
  10. 19. the layer of rock that lies between the outer crust and the core of the earth