Changing faces of the earth

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Across
  1. 3. : a naturally occurring substance having a fixed chemical composition
  2. 5. : the point in the earth’s crust where the earthquake is most felt
  3. 6. : forces that originate from the earth’s crust
  4. 8. :an opening on the the earth’s crust through which magma flows out
  5. 11. : inner core , outer core
  6. 14. : a naturally occurring solid mass
  7. 15. : solidification of magma
  8. 17. : sheer waves that are transverse in nature
  9. 18. : Sial and sima
  10. 19. : accumulation of sediments
  11. 21. the direction the waves is traveling .
Down
  1. 1. : is a movement of tectonic plates which causes vibration in the in the earth’s crust
  2. 2. compressional waves that are longitudinal in nature
  3. 4. :forces that originate from inside the earth’s crust
  4. 7. waves : a surface wave that haves a horizontal motion that is transverse
  5. 9. : crust , mantle , core
  6. 10. : point of origin of an earthquake
  7. 12. : magma to igneous to sedimentary to metamorphic
  8. 13. : silicon and magnesium
  9. 16. : asthenosphere
  10. 19. : silicon And aluminum
  11. 20. : rocks that have been changed by heat and pressure