S2.7.8 For the adult
Noise and our ears
Can a noise harm my ears if it does not hurt?
What this chapter teaches
Thick, soft things muffle sound best because they take in the vibrations. Very loud noise can harm hearing with no pain, and ringing in the ears is a warning.
Three questions to ask
There is no one right wording. Listen for the idea.
- Which material would you choose to muffle a noise, and how would you test it?
- How might you know a noise is too loud for your ears?
- What can you do to protect your ears near a loud noise?
After the chapter, the learner can
- Test which materials muffle sound best
- Explain how loud noise can harm hearing and how to protect it
What they copy into their notebook
Thick, soft things muffle sound best. Very loud noise can harm hearing for ever, with no pain. Ringing is a warning. Move away, cover your ears, keep headphones low.