Crossword Puzzle

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Across
  1. 5. a change in a form, appearance or character
  2. 7. composed of the crust and the portion of the upper mantle that behaves elastically on time scales of up to thousands of years or more.
  3. 9. Having the component of parts closely compacted together
  4. 10. A linear feature that exists between two tectonic plates that are moving away from each other.
Down
  1. 1. a several large landmasses
  2. 2. A fracture or zone of fractures between two block of rocks
  3. 3. The sudden release of strain energy in the Earth's crust, resulting in waves of shaking
  4. 4. American geophysicist who proposed the Sea Floor Spreading hypothesis
  5. 6. A German geologist who fully developed the Continental Drift Theory
  6. 8. Our home planet