Science lesson 4,5,6

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Across
  1. 2. occurs when rock layers bend under stress
  2. 4. lithosphere is divided into pieces.
  3. 7. is a place within earth along a fault at which the first motion of the earthquake occures
  4. 9. are ground movement the occur then blocks of rock in earth move suddenly and release energy
  5. 10. a boundary at which two plates move past each other horizontally.
  6. 12. tectonic plates or fragments of the lithosphere move toward one another and collide.
  7. 13. is stress that squeezes or pushes rock together
  8. 14. kind of movement of material due to differences in density.
  9. 16. is a hypothetical supercontinent that included all current land masses.
  10. 17. the crack that forms when large blocks of rock break and move past each other
  11. 18. is stress that stretches or pulls rock apart
Down
  1. 1. is the process by which rock become deformed and changed shape due to stress
  2. 3. describes large-scale movement of earth's lithosphere.
  3. 5. is stress that pushes rocks in parallel but opposite directions
  4. 6. two tectonic plates that are moving away from each other.
  5. 8. directly above the foucs on earth serface
  6. 11. to explain the age and magnetic patterns of sea-floor rocks.
  7. 15. rebound the return of rock to its original shape after elastic deformation