Fun with Plate Tectonics

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Across
  1. 4. A type of plate movement that occurs when one plate goes under another plate
  2. 6. principle stating that earth's lithosphere floats on a layer called the asthenosphere
  3. 10. ridgid layer of earth about 100km thick
  4. 11. waves some are stoped or bend when they change the material that they are traveling too
  5. 12. mountain form when forces inside earth push up the crust
  6. 13. sudden release of energy within earth's crust that causes wave movement
  7. 14. middle sphere, lower part of the mantle
  8. 17. earth's outermost layer that is thinnest than the other layers
Down
  1. 1. mass of an object divided by its volume
  2. 2. hot, molten lavathat escapes through an opening in earth's surface
  3. 3. mountain made of huge tilted blocks of rocks
  4. 5. A large Fracture in rock along which movement
  5. 6. It is under tremendus pressure and is made of solid iron and nickel
  6. 7. is a plastic-like layer
  7. 8. mountain formed by the folding of rock layers caused by compression forces
  8. 9. it makes a magnetic field as it rotates
  9. 14. it has three parts called lithosphere,asthenosphere,mesosphere
  10. 15. tectonics A theory explaning the structure of the earth's crust
  11. 16. is a process which products of weathering are moved to another location