crossword about Plate Tectonics

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Across
  1. 4. Softer layer beneath the lithosphere.
  2. 7. Deep, narrow part of seafloor.
  3. 8. Shaking from moving plates.
  4. 11. Layer below the crust.
  5. 14. Earth’s center.
  6. 15. Boundary where plates slide past.
  7. 18. Earth's outer layer.
  8. 20. Magma that reaches the surface.
Down
  1. 1. Boundary where plates move apart.
  2. 2. Supercontinent when all plates were joined.
  3. 3. Boundary where plates move together.
  4. 5. Rigid outer shell (crust + top mantle).
  5. 6. Bottom of the ocean, part of plate.
  6. 9. Crack where plates meet.
  7. 10. Plate: Large, moving piece of Earth's surface.
  8. 12. Edge where plates touch.
  9. 13. Mountain where magma comes out.
  10. 16. Deep crack at a divergent boundary.
  11. 17. Hot, melted rock underground.
  12. 19. When one plate goes under another.