The Reading / Listening - Shaving - Level 0

Scientists found why razor blades lose their sharpness. Razor blades are 50 times harder than hair, but hair damages them. Razor blades are made from steel. Every time a blade cuts a hair, the hair damages the blade. Hair makes the blade blunt. This means the life of a razor blade is short. It needs to be replaced often.



The scientists got a close-up view through a microscope of a blade cutting a hair. The hair made a small hole on the blade. This hole got bigger as it cut more hair. After more shaving, the blade did not cut cleanly. A scientist said it was interesting that steel failed when it cut hair. He said this is "an important engineering problem".

Try the same news story at these levels:

    Shaving - Level 1 Shaving - Level 2   or  Shaving - Level 3

Sources
  • http://news.mit.edu/2020/why-shaving-dulls-razors-0806
  • https://science.sciencemag.org/content/369/6504/689
  • https://www.newscientist.com/article/2251202-we-just-figured-out-why-shaving-soft-hair-blunts-steel-razor-blades/


Make sure you try all of the online activities for this reading and listening - There are dictations, multiple choice, drag and drop activities, crosswords, hangman, flash cards, matching activities and a whole lot more. Please enjoy :-)



Phrase Matching

Paragraph 1

  1. razor blades lose their
  2. 50 times harder
  3. Razor blades are made
  4. Every time a blade
  5. the hair damages
  6. Hair makes the blade
  7. the life of a razor blade
  8. It needs to be replaced
  1. from steel
  2. the blade
  3. often
  4. than hair
  5. is short
  6. cuts a hair
  7. sharpness
  8. blunt

Paragraph 2

  1. The scientists got a close-
  2. through a
  3. The hair made a small hole
  4. This hole got
  5. the blade did not cut
  6. A scientist said it was
  7. steel failed when it
  8. an important engineering
  1. bigger
  2. cut hair
  3. up view
  4. problem
  5. on the blade
  6. cleanly
  7. microscope
  8. interesting

Listening — Listen and fill in the gaps

Scientists found why razor blades (1) ___________________. Razor blades are (2) ___________________ than hair, but hair damages them. Razor blades are (3) ___________________. Every time a blade cuts a hair, (4) ___________________ the blade. Hair makes (5) ___________________. This means the life of a razor blade is short. It needs to (6) ___________________.

The scientists got a (7) ___________________ through a microscope of a blade (8) ___________________. The hair made a small hole on the blade. This (9) ___________________ as it cut more hair. (10) ___________________, the blade did (11) ___________________. A scientist said it was interesting that steel failed when it cut hair. He said this is "(12) ___________________ problem".

Put a slash (/) where the spaces are

Scientistsfoundwhyrazorbladeslosetheirsharpness.Razorbladesare
50timesharderthanhair,buthairdamagesthem.Razorbladesaremad
efromsteel.Everytimeabladecutsahair,thehairdamagestheblade.Ha
irmakesthebladeblunt.Thismeansthelifeofarazorbladeisshort.Itnee
dstobereplacedoften.Thescientistsgotaclose-upviewthroughamic
roscopeofabladecuttingahair.Thehairmadeasmallholeontheblade.T
hisholegotbiggerasitcutmorehair.Aftermoreshaving,thebladedidnot
cutcleanly.Ascientistsaiditwasinterestingthatsteelfailedwhenitcuth
air.Hesaidthisis"animportantengineeringproblem".

Student survey

Write five GOOD questions about this topic in the table. Do this in pairs. Each student must write the questions on his / her own paper. When you have finished, interview other students. Write down their answers.

(Please look at page 12 of the PDF to see a photocopiable example of this activity.)

Discussion — Write your own questions

STUDENT A’s QUESTIONS (Do not show these to student B)

(a) ________________

(b) ________________

(c) ________________

(d) ________________

(e) ________________

(f) ________________

(g) ________________

(h) ________________

STUDENT B’s QUESTIONS (Do not show these to student A)

(i) ________________

(j) ________________

(k) ________________

(l) ________________

(m) ________________

(n) ________________

(o) ________________

(p) ________________





Free writing

Write about this topic for 10 minutes. Comment on your partner’s paper.

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Answers

(Please check your answers against the article above.

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