full transcript

From the Ted Talk by TED-Ed: The material that could change the world ... for a third time

Unscramble the Blue Letters

Other innovators are tkinireng with the ftunnmdaael chemistry of concrete. Some are investigating ways to reduce emissions by diceresang the cement in concrete. Still others have been wirokng to unoevcr and replicate the secrets of Roman concrete. They found that Pliny’s remark is literally true. The Romans used volcanic ash in their cement. When the ash interacted with seawater, the seawater strengthened it— making their concrete stronger and more long-lasting than any we use today. By adding these findings to an arsenal of modern innovations, hopefully we can replicate their success— both by making long lasting structures, and ennusirg our descendants can amdrie them thousands of years from now.

Open Cloze

Other innovators are _________ with the ___________ chemistry of concrete. Some are investigating ways to reduce emissions by __________ the cement in concrete. Still others have been _______ to _______ and replicate the secrets of Roman concrete. They found that Pliny’s remark is literally true. The Romans used volcanic ash in their cement. When the ash interacted with seawater, the seawater strengthened it— making their concrete stronger and more long-lasting than any we use today. By adding these findings to an arsenal of modern innovations, hopefully we can replicate their success— both by making long lasting structures, and ________ our descendants can ______ them thousands of years from now.

Solution

  1. working
  2. ensuring
  3. admire
  4. decreasing
  5. tinkering
  6. fundamental
  7. uncover

Original Text

Other innovators are tinkering with the fundamental chemistry of concrete. Some are investigating ways to reduce emissions by decreasing the cement in concrete. Still others have been working to uncover and replicate the secrets of Roman concrete. They found that Pliny’s remark is literally true. The Romans used volcanic ash in their cement. When the ash interacted with seawater, the seawater strengthened it— making their concrete stronger and more long-lasting than any we use today. By adding these findings to an arsenal of modern innovations, hopefully we can replicate their success— both by making long lasting structures, and ensuring our descendants can admire them thousands of years from now.

Frequently Occurring Word Combinations

ngrams of length 2

collocation frequency
greenhouse gas 5
gas emissions 5
carbon dioxide 4

ngrams of length 3

collocation frequency
greenhouse gas emissions 5

Important Words

  1. adding
  2. admire
  3. arsenal
  4. ash
  5. cement
  6. chemistry
  7. concrete
  8. decreasing
  9. descendants
  10. emissions
  11. ensuring
  12. findings
  13. fundamental
  14. innovations
  15. innovators
  16. interacted
  17. investigating
  18. lasting
  19. literally
  20. long
  21. making
  22. modern
  23. reduce
  24. remark
  25. replicate
  26. roman
  27. romans
  28. seawater
  29. secrets
  30. strengthened
  31. stronger
  32. structures
  33. thousands
  34. tinkering
  35. today
  36. true
  37. uncover
  38. volcanic
  39. ways
  40. working
  41. years