Science Project Crossword Puzzle

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Across
  1. 2. the outermost physical layer of the Earth
  2. 6. a piece of the lithosphere
  3. 8. when two tectonic plates move away from one another
  4. 9. the bending, tilting, and breaking of rock
  5. 11. one of the three landforms associated with convergent boundaries
  6. 13. when tectonic plates move towards each other and collide
  7. 14. squeezes or shortens material
  8. 15. the second of three landforms associated with convergent boundaries
  9. 17. when two oceanic plates converge and one sinks beneath the other
  10. 19. the process of one plate sinking below another
  11. 20. one of two landforms associated with divergent boundaries
Down
  1. 1. when two tectonic plates move past each other in opposite directions
  2. 3. lengthens a material or pulls a material apart
  3. 4. the third of three landforms associated with convergent boundaries
  4. 5. a chain of volcanic mountains
  5. 7. causes material to twist or become distorted
  6. 10. pieces of the lithosphere
  7. 12. breaks in rock
  8. 16. volcanic island that forms far from tectonic plates
  9. 18. the layer immediately below the lithosphere