Science Crossword Puzzle

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Across
  1. 3. When two plates collide and one goes under the other.
  2. 5. When two plates slide past each other.
  3. 7. When these move they cause earthquakes, build mountains, and create rifts.
  4. 10. When two plates come together.
Down
  1. 1. When two plates move away from each other.
  2. 2. This is formed when two tectonic plates divide from each other.
  3. 4. The outside layer of Earth.
  4. 6. This person was mocked for his theory of Pangea.
  5. 8. The center of the planet.
  6. 9. The name for land before it divided.