Restless Earth

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Across
  1. 7. What is the theory that explains how large pieces of tectonic plates move and change shape
  2. 9. What is magma that flows on Earth's surface
  3. 10. What is a block of lithosphere that consists of the crust and rigid, outermost part of the mantle
  4. 11. What is an opening at the surface of Earth through which volcanic material passes
  5. 12. What is the block below the fault plane
  6. 14. What is the boundary between tectonic plates that are sliding past each other horizontally
  7. 15. What is the movement of matter due to differences in density
  8. 16. What is molten rock material that contains trapped gas under the Earth's surface
  9. 17. What is a vent or fissure in Earth's surface through which magma and gases are expelled
  10. 19. What type of stress squeezes or pushes rock together
  11. 20. What is the block above all blocks except a vertical vault
Down
  1. 1. What is the process by which rock changes shape under stress
  2. 2. What is the crack that forms when large blocks of rock break and move past each other
  3. 3. What type of stress stretches or pulls rocks apart
  4. 4. Name the location where two fault blocks meet
  5. 5. What is a volcanically active area of Earth's surface
  6. 6. What type of stress pushes rocks in parallel but opposite directions
  7. 8. What is the supercontinent thst formed 300 million years ago
  8. 13. What is the boundary between tectonic plates that colliding
  9. 18. Name the process that occurs when rock layers bend under stress