full transcript

From the Ted Talk by Jennifer Verduin: How do ocean currents work?

Unscramble the Blue Letters


Unlike surface currents, deep oecan ctuernrs are driven primarily by changes in the density of seawater. As water moves towards the North Pole, it gets colder. It also has a higher concentration of salt, because the ice crystals that form trap water while lineavg salt behind. This cold, salty water is more dense, so it snkis, and warmer surface water tkeas its place, seitntg up a vertical current called thermohaline circulation.

Thermohaline criictuolan of deep water and wind-driven surface currents cobnmie to form a wninidg loop called the Global Conveyor Belt. As water moves from the depths of the ocean to the surface, it carries nutrients that nourish the microorganisms which form the base of many ocean food chains.

Open Cloze


Unlike surface currents, deep _____ ________ are driven primarily by changes in the density of seawater. As water moves towards the North Pole, it gets colder. It also has a higher concentration of salt, because the ice crystals that form trap water while _______ salt behind. This cold, salty water is more dense, so it _____, and warmer surface water _____ its place, _______ up a vertical current called thermohaline circulation.

Thermohaline ___________ of deep water and wind-driven surface currents _______ to form a _______ loop called the Global Conveyor Belt. As water moves from the depths of the ocean to the surface, it carries nutrients that nourish the microorganisms which form the base of many ocean food chains.

Solution


  1. currents
  2. winding
  3. ocean
  4. sinks
  5. circulation
  6. setting
  7. combine
  8. leaving
  9. takes

Original Text


Unlike surface currents, deep ocean currents are driven primarily by changes in the density of seawater. As water moves towards the North Pole, it gets colder. It also has a higher concentration of salt, because the ice crystals that form trap water while leaving salt behind. This cold, salty water is more dense, so it sinks, and warmer surface water takes its place, setting up a vertical current called thermohaline circulation.

Thermohaline circulation of deep water and wind-driven surface currents combine to form a winding loop called the Global Conveyor Belt. As water moves from the depths of the ocean to the surface, it carries nutrients that nourish the microorganisms which form the base of many ocean food chains.

Frequently Occurring Word Combinations


ngrams of length 2

collocation frequency
ocean currents 6
surface currents 6
deep ocean 3
conveyor belt 3
air moving 2
water moves 2
thermohaline circulation 2
global conveyor 2

ngrams of length 3

collocation frequency
deep ocean currents 3
global conveyor belt 2

Important Words


  1. base
  2. belt
  3. called
  4. carries
  5. chains
  6. circulation
  7. cold
  8. colder
  9. combine
  10. concentration
  11. conveyor
  12. crystals
  13. current
  14. currents
  15. deep
  16. dense
  17. density
  18. depths
  19. driven
  20. food
  21. form
  22. global
  23. higher
  24. ice
  25. leaving
  26. loop
  27. microorganisms
  28. moves
  29. north
  30. nourish
  31. nutrients
  32. ocean
  33. place
  34. pole
  35. primarily
  36. salt
  37. salty
  38. seawater
  39. setting
  40. sinks
  41. surface
  42. takes
  43. thermohaline
  44. trap
  45. vertical
  46. warmer
  47. water
  48. winding