Tectonic Plate

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Across
  1. 4. core: made of of iron and nickel
  2. 6. point of earth surface atop of focus
  3. 12. stress that forces fold in rocks
  4. 14. cracks or breaks in earth crust
  5. 16. when two tectonic plate move away
  6. 17. study of earthquake
  7. 19. slip hanging and foot wall move horizontal relative to each other
  8. 21. waves seismic waves that can only travel through solids
  9. 23. a long, steep-sided valley on the ocean floor
  10. 25. When oceanic plate slides down
  11. 26. core: liquid that surrounds earth's core
  12. 27. formed by tension
Down
  1. 1. Waves seismic waves that travel along the surface of the earth
  2. 2. stress that causes normal fault
  3. 3. fault when foot-wall moves upwards relative to hanging wall
  4. 5. stress that causes rock to fold
  5. 7. when two plates grind on each other
  6. 8. Scale a numerical scale that measures how strong an earthquake is
  7. 9. fold in the rock that bends upward in an arch
  8. 10. example of folded mountain
  9. 11. crust and upper mantle
  10. 12. when two tectonic plates collide, caused by compression
  11. 13. instrument that detects and records earthquake
  12. 15. currents force that moves tectonic plate
  13. 18. force that acts on the rock to change its shape
  14. 20. waves fastest traveling seismic waves can travel through solid, liquid, and gas
  15. 22. shaking of the ground
  16. 24. fault when hanging wall move toward relative to foot-wall
  17. 25. fold in a rock that bends downwards