Earth and Rock Formation

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Across
  1. 4. Mountains are often formed where tectonic plates come ______.
  2. 6. Tectonic is from the Latin word meaning "to _____."
  3. 9. Molten rock found beneath the Earth's surface.
  4. 10. Formed from the cooling and solidification of molten rock.
  5. 12. Shifting tectonic plates are the cause of these ground tremors.
  6. 13. The Earth’s crust is believed to be made of tectonic ____.
  7. 14. A boiling water version of a volcano.
  8. 17. North America is moving away from Europe at about one ____ every year.
  9. 18. The plates are floating on this major layer of the Earth.
  10. 19. The continuous process by which rocks are created, changed, and destroyed.
Down
  1. 1. The thin layer of rock we live on.
  2. 2. Formed when particles of other rocks are compacted and cemented together.
  3. 3. The element that makes up the solid inner core.
  4. 5. Formed from existing rocks that are changed by heat and pressure.
  5. 7. Hollowed-out spaces in the Earth's crust.
  6. 8. The layer at the center of the Earth.
  7. 11. Molten rock that has erupted onto the Earth's surface.
  8. 13. The supercontinent once called "whole Earth."
  9. 15. If Earth were an egg, the crust would be as thick as the ___.
  10. 16. Volcanoes give us a ____ to what's underneath the Earth's crust.