plate tectonics

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Across
  1. 4. – largest type of crust
  2. 5. – the spot underground where rock breaks causing an earthquake
  3. 12. – when the earths crust is pushed up from its sides
  4. 15. – the earths thickest layer
  5. 16. – the super continent
  6. 19. - the largest recorded shock
  7. 20. – what layer of the earth is liquid state due to extremely high temperatures
  8. 21. – most common type of volcano, explosive eruptions and lava flow
  9. 23. – semi rigid part of the mantle
  10. 24. – plates sliding against each other
  11. 26. – debris thrown from volcanos with viscous magma
  12. 30. – lava with a high viscosity, blocky and rough
  13. 31. – the area on the ground directly above where an earthquake occurs
  14. 34. – the north side of Pangaea
  15. 36. – an earthquake that occurs after a larger seismic event
  16. 38. – the south side of Pangaea
  17. 39. - an opening in the side of a volcano through which volcanic materials (like lava, gases, and pyroclastic debris) erupt.
  18. 40. – lava that is parcially cooled, low viscosity, thin (like water)
  19. 41. – what layer of the earth is solid due to tremendous pressure
Down
  1. 1. – areas of the earths surface through which magma and volcanic gases pass
  2. 2. – a volcano that is not very steep but can be big with non- explosive eruptions
  3. 3. – occurs in the middle of the plate tectonics
  4. 6. waves – waves trapped near the surface, they are the slowest and most destructive
  5. 7. - hot molten or semi-fluid rock erupted from a volcano or fissure, or solid rock resulting from cooling of this.
  6. 8. – a volcano small in size with steep slopes, moderately explosive with shot eruptions
  7. 9. – smallest type of crust
  8. 10. – A point source of the Earth's surface through which lavas, pyroclastics, and gas are erupted.
  9. 11. – a tube formed by cooling and solidifying of the lava walls while fluid lava continued to flow inside
  10. 13. – plates pulling away from each other
  11. 14. – the line which rocks break and move
  12. 17. – the scale which measures the magnitude of earthquakes
  13. 18. – plates pushing together
  14. 22. – waves that travel along the worlds outer layers
  15. 25. – a form of closed lava tube (with a bulbous end) that forms when lava flows into water (e.g. a lake) and cools very rapidly
  16. 27. - a large underground pool of liquid rock found beneath the surface of the Earth.
  17. 28. – occurs on the tectonic plate boundaries
  18. 29. - hot fluid or semi-fluid material below or within the earth's crust from which lava and other igneous rock is formed on cooling.
  19. 32. – all material ejected from a volcano
  20. 33. – scientist behind the theory of the continental drift
  21. 35. – the fastest travel waves with the greatest velocity
  22. 37. – an earthquake that occurs before a larger seismic event
  23. 42. – the earths thinnest layer