Unit 9- Earth's Materials & Rock Cycle

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Across
  1. 1. the thickest layer of earth
  2. 3. the movement of a plate in the earths crust into the mantle beneath another
  3. 8. how light interacts with the surface of a rock or crystal
  4. 9. when magma or lava crystallizes, it forms this type of rock
  5. 10. hot fluid below the earths crust
  6. 12. when a rock has lots of heat and pressure it forms a new rock
  7. 14. the densest layer of the earth, mostly made of Fe and Ni
  8. 15. force put onto a rock
  9. 17. what the earth is made up of
Down
  1. 2. it is part of the mantle and the crust, is right on top of the athenosphere
  2. 4. a mark (usually a line) made from the surface of a rock
  3. 5. igneous rocks formed from magma forced into older rocks in the earth's crust
  4. 6. the layer made of all liquid, made of Fe and Ni
  5. 7. formed when sediments are weathered, deposited, and eroded to form a new rock
  6. 11. located in the upper most mantle, right below the lithosphere
  7. 13. bringing together particles
  8. 16. a substance naturally formed in earth