Earth's Structure Review Puzzle (All answers should be written as one word)

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Across
  1. 2. The sphere of Earth containing gases and weather
  2. 3. The name for a force, such as a volcano, which creates new land
  3. 5. The sphere of Earth containing rocks and metals
  4. 11. How igneous rock is made from magma
  5. 14. The type of crust that is subducted (sinks) during the sea-floor spreading process
  6. 15. The explanation for how the continents moved over time (30 years after Wegener died)
  7. 17. Where does the old crust go when it is subducted?
  8. 19. How sediment is made
  9. 20. A plate boundary in which the plates move toward one another
  10. 21. The tool used to measure the seismic waves from an earthquake
  11. 22. A plate boundary in which the plates move apart
Down
  1. 1. The name for a force, like an earthquake, which destroys land or breaks rock apart
  2. 4. How sedimentary rocks are made
  3. 6. How metamorphic rocks are made
  4. 7. The location where subduction occurs
  5. 8. The sphere of Earth containing Earth's water
  6. 9. The location along a divergent boundary where sea-floor spreading begins
  7. 10. Alfred Wegener's hypothesis that the continents had moved over time
  8. 12. How magma is made
  9. 13. The type of crust that remains on top during subduction
  10. 16. A plate boundary in which the plates move side by side
  11. 18. The sphere of Earth containing living things