Science Crossword Puzzle

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Across
  1. 3. eruption
  2. 6. a sudden and violent shaking of the ground fossil
  3. 8. large-scale processes affecting the structure of the earth's crust
  4. 9. the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
Down
  1. 1. forming or belonging to a continent.
  2. 2. bend
  3. 4. the central or most important part of something
  4. 5. a deep and narrow hole, or ditch, in the ground
  5. 7. the floor of a sea or ocean
  6. 10. the outermost solid shell of a rocky planet,