Volcanoes and Volcanism

12345678910111213141516171819202122
Across
  1. 6. A depression at the top of a volcanic cone.
  2. 8. The rate of temperature change with depth (into the earth).
  3. 11. A depositional mountain landform built from solidified magma from deep in the earth.
  4. 12. A hole in the earth's surface where lava can come out.
  5. 13. A place where heated water rises to the surface of the earth as a liquid.
  6. 15. Formed on top of the earth's crust.
  7. 16. Thick layers of igneous rock that cover many places including the ocean floor.
  8. 17. Anything having to do with molten earth materials.
  9. 20. Magma moving inside the earth's crust.
  10. 21. A layer of loose pyroclastic materials and ash covering the ground.
  11. 22. An inactive, but eneroded volcano.
Down
  1. 1. The scale used to estimate the explosive power in a volcano.
  2. 2. Energy created from magma inside or outside of the earth's surface.
  3. 3. Currently erupting or has been observed erupting in history.
  4. 4. Solidified lava that explodes from a volcano.
  5. 5. Large amount of magma collected and cooled in one space.
  6. 7. Quiet eruptions of mostly low viscosity, basaltic lava
  7. 9. A volcano that shows no signs of seismic or volcanic activity.
  8. 10. Eruptions that eject both lava and pyroclastic materials.
  9. 14. A place where hot or boiling water is forcefully ejected from the ground at regular intervals.
  10. 18. Magma above the surface of the earth.
  11. 19. Eruptions of bursts of gases that eject mostly pyroclastic materials.