Dynamic Earth.

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Across
  1. 3. The inner layer of the earth
  2. 5. A volcanic rock
  3. 6. Melted down siltstone turns into...
  4. 8. The biggest plate
  5. 9. Used to measure the size of an earthquake
  6. 13. Made of small rocks and glass fragments during a volcano eruption
  7. 14. The name of the plate for the land
  8. 15. directly above the form focus
  9. 17. The super continet
  10. 18. While erupting can spew hot magma/lava
Down
  1. 1. The name of the plates that run under the ocean
  2. 2. Form when magma is cooled slowly in a rock
  3. 4. A glass-like black rock
  4. 6. A type of rock formed when other rocks or living things washed into oceans and lakes
  5. 7. Magma that has reached the surface
  6. 9. A rock formed by high heat and heavy pressure
  7. 10. A shake caused by two plates sliding past each other
  8. 11. What the crust is made up
  9. 12. A remain or imprint of a remain stuck in a rock
  10. 16. A metamorphic rock formed from limestone