Plate Tectonics and Volcanoes structure

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Across
  1. 4. The rigid outer layer of Earth, including the crust and upper mantle.
  2. 6. The largest continent on Earth.
  3. 7. The typical form of many volcanoes.
  4. 8. The top or peak of a mountain or volcano.
  5. 11. A large continuous area of land on Earth.
  6. 13. The theory explaining the movement of Earth's crustal plates.
Down
  1. 1. Openings in Earth's surface where volcanic material escapes.
  2. 2. A word describing the threat posed by natural disasters.
  3. 3. Fine particles ejected by volcanic eruptions.
  4. 4. Molten rock that flows out of a volcano onto Earth's surface.
  5. 5. A sudden shaking of the ground caused by tectonic movement.
  6. 9. Molten rock beneath Earth's surface.
  7. 10. A mountain that erupts lava, gases, and ash.
  8. 12. Solid mineral material forming Earth's surface.
  9. 13. The supercontinent or "all earth" that existed millions of years ago.