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