Forces that Shape the Earth

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Across
  1. 2. A type of strain that creates a permanent change in the shape of a rock
  2. 3. Devices that measure and record ground motion
  3. 6. An area of many fractured pieces of crust along a large fault
  4. 9. Spread of oceanic crust allowing hot magma to rise
  5. 10. Curved line of volcanoes that forms parallel to plate boundaries
  6. 11. Point beneath Earth’s surface where rock under stress breaks
  7. 17. The exact area where two plates interact
  8. 19. Compression waves that travel through solids and liquids
  9. 23. Vibrations in the ground that result from movement along faults
  10. 27. Waves that produce severe ground movement with a wavelike motion
  11. 28. Only travel through solids and temporarily change the shape
  12. 29. A change in the shape of a rock caused by stress
  13. 30. String of islands created by volcanoes near boundaries
  14. 31. A volcano that is not active, but may become active again
  15. 32. A type of volcanic eruption that happens with incredible force
Down
  1. 1. Caused by continental plates colliding
  2. 4. A volcano that is unlikely to erupt again
  3. 5. A fault that forms when tension pulls rocks apart
  4. 7. Area where material from deep within the mantle rises then melts
  5. 8. Major volcanic belt that borders the Pacific Ocean
  6. 12. Spread of continental crust causing splits in the crust
  7. 13. A type of volcanic eruption that bubbles out slowly
  8. 14. A type of strain that causes a change in rock that is NOT permanent
  9. 15. Squeezes rock until it folds or breaks
  10. 16. A fault that forms when shearing forces grind rocks against each other
  11. 18. Point on the surface directly above the focus
  12. 20. Molten mixture of rock, gases, and water
  13. 21. The type of wave that carries energy of an earthquake
  14. 22. A fault that forms when compression pushes rocks at each other
  15. 24. Caused by one oceanic plate subducting under another
  16. 25. Pulls on the crust, stretching rock so it becomes thinner in the middle
  17. 26. Pushes a mass of rock in two opposite directions
  18. 29. Force that acts on rock to change it's shape or volume
  19. 33. Weak spot in earth’s crust where magma comes to the surface