Volcanoes- Use your book. Pages 554-565

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Across
  1. 4. thick, mostly flat layer of cool lava
  2. 6. has mild eruptions, cover wide area
  3. 9. melted rock under the ground
  4. 11. giant sections of lithosphere (crust)
  5. 12. where gas,ash,& magma come out of ground
  6. 14. giant cracks in Earth's surface
  7. 15. commonly develop into steep mountains
  8. 17. many volcanoes form around Pacific Ocean
  9. 18. at these boundaries plates move apart
Down
  1. 1. the resistance of a liquid to flowing
  2. 2. a basin shaped depression
  3. 3. melted rock that has reached the surface
  4. 5. the opening of a volcano
  5. 7. The largest volcano ever discovered
  6. 8. an opening at the top of a volcano
  7. 10. eruptions away from plate boundaries
  8. 13. at these boundaries plates move together
  9. 16. cinders and ash build up around the vent