Planet Earth

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Across
  1. 1. Type of fault that involves plates moving past each other
  2. 5. Breakdown of rocks
  3. 7. Layer that is semi-solid and very dense
  4. 8. Type of rock formed from pressure and has layers
  5. 9. Layer that is completely liquid
  6. 11. Type of volcano that is tall and steep
  7. 13. Seismic waves that come first
  8. 14. Seismic waves that come second
  9. 15. Type of volcano that has a crater
  10. 18. Moving of rock pieces
  11. 19. Outer layer and thinnest layer of the Earth
  12. 20. Molten rock on the surface
  13. 21. Type of fault that involves plates moving apart
Down
  1. 2. Type of rock formed from other rocks being heated and compressed
  2. 3. Molten rock under the surface
  3. 4. Later that is the hottest, but is solid due to pressure
  4. 6. Type of rock that is formed from melting magma or lava
  5. 10. Type of fault that involves plates moving together
  6. 12. middle of an earthquake on the surface
  7. 13. The supercontinent from hundreds of millions of years ago
  8. 16. Type of volcano that forms islands and oozes lava
  9. 17. Middle of an earthquake below the surface