BMcMurray Crossword

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Across
  1. 2. Produced by physical alteration under high temperature and pressure
  2. 7. Two regions of intense radiation partly surrounding the earth
  3. 10. The redirection of a wave as it changes mediums
  4. 12. A metric unit of length = to 1000 meters
  5. 13. Rock formed by the combining of materials
  6. 15. An instrument that measures and records details of earthquakes
  7. 16. The central part of the planet
  8. 17. A vibration that travels through the interior of Earth
  9. 18. When planets melt, the materials begin to separate
Down
  1. 1. The motion of segments or plates of the outer layer
  2. 3. The outer layer of a terrestrial planet
  3. 4. A type of rock that makes up continental crust
  4. 5. The largest part of Earth’s interior
  5. 6. The science about earth's physical structure and substance
  6. 8. Igneous rock produced by the cooling of lava
  7. 9. The region around a planet where the solar wind is
  8. 11. Rock produced by cooling from a molten state
  9. 14. A stream of energized, charged particles, through the solar system