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PLATE TECTONICS REVIEW

PLATE TECTONICS REVIEW. Approximately how old is the earth?. 4.6 billion years old. What are the three zones of the earth?. Crust, mantle, core. What are the two types of crust?. Oceanic & continental. Describe the lithosphere. . Rigid plastic-like. Describe the asthenosphere .

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PLATE TECTONICS REVIEW

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  1. PLATE TECTONICS REVIEW

  2. Approximately how old is the earth?

  3. 4.6 billion years old

  4. What are the three zones of the earth?

  5. Crust, mantle, core

  6. What are the two types of crust?

  7. Oceanic & continental

  8. Describe the lithosphere.

  9. Rigid plastic-like

  10. Describe the asthenosphere.

  11. Flowing plastic layer

  12. Which part of the core is solid?

  13. The inner core

  14. Which two elements make up the core?

  15. Iron and nickel

  16. Which zone makes up 2/3 of the earth’s mass?

  17. The mantle

  18. Who proposed the idea of continental drift?

  19. Alfred Wegener

  20. What is the single landmass called?

  21. Pangaea

  22. What is the single ocean called?

  23. Panthalassa

  24. One piece of evidence that supports continental drift is that similar _______ were found in eastern South America and western Africa.

  25. Fossils or rocks

  26. At mid-ocean ridges, magma rises and cools into new ocean crust. What is this process called?

  27. Sea floor spreading

  28. The idea of plate tectonics is that the _______ is made up of solid pieces that “ride” on the _______________.

  29. Lithosphere, Asthenosphere

  30. What is the force that pulls rocks apart?

  31. Tension

  32. What is the force that pushed one rock in opposite horizontal directions?

  33. Shearing

  34. What is it called when rock responds to stress by becoming permanently deformed WITHOUT breaking?

  35. Folding

  36. What is the type of folding that makes curves that look like the mouth in a “smiley face”?

  37. Syncline

  38. What is a break in the rock when the rocks have actually moved?

  39. Fault

  40. What is a break in the rock when there is no movement on either side of the break?

  41. Fracture

  42. What are the mountains that are formed when molten rock rised up and pushes rock layers above it?

  43. Dome mountains

  44. The discovery of “striping” on the ocean floor provided evidence of the reversing of Earth’s ____________.

  45. Paleo-magnetism

  46. What type of boundary has plates moving away from each other?

  47. Divergent boundary

  48. Plates are moving toward each other in a ___________ boundary.

  49. Convergent

  50. The three types of convergent boundaries depend on the types of crust. Name the 3 options.

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