unit 3 vocab

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Across
  1. 2. Tectonics- the theory that Earth’s crust is divided into plates that are always moving
  2. 4. the boundary between two tectonic plates that are COLLIDING with each otherDivergent- the boundary between two tectonic plates moving AWAY from each other
  3. 6. the boundary between tectonic plates that are sliding past each other horizontally
  4. 9. natural land shape or feature
  5. 11. Scale- measures the magnitude of an earthquake on a scale of 1-10
  6. 13. scientist that studies earthquakes
  7. 15. very small pieces of rock
  8. 17. the process of rock breaking apartErosion- the process of moving weathered rock from one place to another
  9. 19. scientist that studies volcanoes
  10. 20. thick layer of Earth beneath the crust
Down
  1. 1. the strength of an earthquake
  2. 3. the dropping of weathered rock by wind or moving water
  3. 5. the layer of Earth extending from Earth’s center to the bottom of the mantle (Metallic)
  4. 7. a break in the Earth’s crust where rock on one side moves in relation to rock on the other side
  5. 8. a place where hot gases, smoke, and melted rock come out of the ground onto Earth’s surface
  6. 10. the thin outer layer of Earth
  7. 12. a shaking of Earth’s surface that can cause land to rise and fall
  8. 14. the liquid rock below Earth’s crust
  9. 16. is the molten rock that erupts from the volcano along with ash and hot gases
  10. 18. the point on Earth’s surface directly above the focus of an earthquake