Earth Vocabulary Crossword

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Across
  1. 3. The theory that Earth ´ s land masses are in constant motion
  2. 9. A portion of the earth ´ s mantle that flows like molten plastic despite being solid
  3. 10. When two plates come together
  4. 12. The thin, outer layer of the Earth
  5. 13. The only liquid layer
Down
  1. 1. Occurs when an oceanic plate runs into a continental plate and slide beneath it
  2. 2. A measure of the strength of earthquakes
  3. 4. This Occurs when two tectonic plates move away from each other
  4. 5. The solid, outer part of Earth
  5. 6. The most inner layer of the Earth
  6. 7. Lies between the crust and the outer core
  7. 8. Massive slab of solid rock made up of earth´s lithosphere
  8. 11. A violent and abrupt shaking of the ground