Layers of Earth

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Across
  1. 1. The movement of molten iron in the outer core creates Earth's ______________ ______________.
  2. 3. The type of crust is thin and dense.
  3. 5. A material that is somewhere between a liquid and a solid.
  4. 7. The two factors that caused the layers of Earth to form the way they did are density and __________.
  5. 8. Because the Earth has a magnetic field, we can use a ____________ for navigation.
  6. 11. The brittle outer layer of Earth that includes the upper mantle and the crust.
  7. 13. The two elements that mainly compose the crust are silicon and ____________.
  8. 14. The amount of matter in a certain amount of space.
  9. 16. The outermost layer of the geosphere.
  10. 17. The weak, partially melted layer of the mantle directly below the lithosphere.
  11. 18. The crust is broken up into pieces called ____________ __________.
  12. 19. The inner core remains solid despite high temperatures because of very high __________.
Down
  1. 2. The very center of the Earth that is composed of solid iron and nickel.
  2. 4. Large swirling forces of matter caused by differing densities of hot and cold matter.
  3. 6. The layer of Earth that makes up the largest volume of Earth's interior.
  4. 9. The type of crust that is thick, less dense, and more brittle.
  5. 10. The amount of space an object takes up.
  6. 12. The layer of Earth that is composed of liquid iron and nickel.
  7. 15. The amount of matter in an object.