plate tectonic by parvaaz

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Across
  1. 3. igneous rock made the continental crust
  2. 6. hot semi-plastic
  3. 8. layer of hot solid material
  4. 10. less dense but more thick then the oceanic crust
  5. 11. Made the idea of plate tectonic
  6. 15. idea was first thougth of by Wegener
  7. 16. rock that is melted
  8. 17. a chain of volcanoes
  9. 19. happen when plate transform with other plates
  10. 21. under water valleys
  11. 22. when the plates come together
  12. 24. long zipper like chains
  13. 25. a molten mixture of rock forming
Down
  1. 1. made from iron rich lava
  2. 2. when the plates pull apart from each other
  3. 4. not as hot as the inner core and it is only liqud
  4. 5. so hot that is can be liquid but to compact to liquify
  5. 7. sinking movement of a oceanic plate
  6. 9. outer layer of the earth
  7. 12. when the plates slide past each other
  8. 13. more dense but thinner than continental crust
  9. 14. produced by earthquakes and are measured by seismographs
  10. 18. a layer of rock that forms earth's outer core
  11. 20. molten rock flows up between cracks that harden
  12. 23. a black metal ore