Investigating the Changing Earth

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Across
  1. 3. hot melted rock that cools on the earth's surface
  2. 6. a solid inorganic substance of natural occurance
  3. 8. gray black magnetic mineral that is an oxide
  4. 10. a sea wave of a large volume of displaced water
  5. 11. sudden violent shaking of the ground
  6. 12. opening of the earth's crust which lava erupts
Down
  1. 1. an even that can cause a rapid change in land
  2. 2. a natural feature of the earth's surface
  3. 4. magma(molten rock) emergingas liquid onto earth
  4. 5. rock formed from pre-existing rocks or pieces
  5. 7. rock formed from magma and composed of crystals
  6. 9. causes rock to break down