full transcript
From the Ted Talk "Balsher Singh Sidhu: Are we running out of clean water?"

Unscramble the Blue Letters

Well yes, and no. At a planetary scale, Earth can’t run out of freshwater thanks to the eatrw cycle, a system that continuously produces and recycles water, morphing it from aprvou, to liquid, to ice as it circulates around the oelgb. So this isn’t really a nsqituoe of how much water there is, but of how much of it is accessible to us. 97% of earth’s liquid is saltwater, too loaded with minerals for humans to drink or use in rceutliguar. Of the mgrneniai 3% of potentially salueb freshwater, more than two-thirds is orfnze in ice caps and glaciers. That leaves less than 1% available for astnsingui all life on Earth, spread across our planet in rivers, lakes, underground aquifers, ground ice and permafrost. It’s these sources of water that are being rapidly depleted by humans, but slowly replenished by rain and snowfall.

Open Cloze

Well yes, and no. At a planetary scale, Earth can’t run out of freshwater thanks to the _____ cycle, a system that continuously produces and recycles water, morphing it from ______, to liquid, to ice as it circulates around the _____. So this isn’t really a ________ of how much water there is, but of how much of it is accessible to us. 97% of earth’s liquid is saltwater, too loaded with minerals for humans to drink or use in ___________. Of the _________ 3% of potentially ______ freshwater, more than two-thirds is ______ in ice caps and glaciers. That leaves less than 1% available for __________ all life on Earth, spread across our planet in rivers, lakes, underground aquifers, ground ice and permafrost. It’s these sources of water that are being rapidly depleted by humans, but slowly replenished by rain and snowfall.

Solution

  1. usable
  2. frozen
  3. globe
  4. question
  5. water
  6. sustaining
  7. agriculture
  8. remaining
  9. vapour

Original Text

Well yes, and no. At a planetary scale, Earth can’t run out of freshwater thanks to the water cycle, a system that continuously produces and recycles water, morphing it from vapour, to liquid, to ice as it circulates around the globe. So this isn’t really a question of how much water there is, but of how much of it is accessible to us. 97% of earth’s liquid is saltwater, too loaded with minerals for humans to drink or use in agriculture. Of the remaining 3% of potentially usable freshwater, more than two-thirds is frozen in ice caps and glaciers. That leaves less than 1% available for sustaining all life on Earth, spread across our planet in rivers, lakes, underground aquifers, ground ice and permafrost. It’s these sources of water that are being rapidly depleted by humans, but slowly replenished by rain and snowfall.

Important Words

  1. accessible
  2. agriculture
  3. aquifers
  4. caps
  5. circulates
  6. continuously
  7. cycle
  8. depleted
  9. drink
  10. earth
  11. freshwater
  12. frozen
  13. glaciers
  14. globe
  15. ground
  16. humans
  17. ice
  18. lakes
  19. leaves
  20. life
  21. liquid
  22. loaded
  23. minerals
  24. morphing
  25. permafrost
  26. planet
  27. planetary
  28. potentially
  29. produces
  30. question
  31. rain
  32. rapidly
  33. recycles
  34. remaining
  35. replenished
  36. rivers
  37. run
  38. saltwater
  39. scale
  40. slowly
  41. snowfall
  42. sources
  43. spread
  44. sustaining
  45. system
  46. underground
  47. usable
  48. vapour
  49. water