Do you have the same list of words with that of your partner? If not, what do you think might have
caused the difference?
In which activity do you think is it easy for you to hear the words clearly, in air, water or solid?
In which material/place do you find it to speak very easily?
In which material do you find it easy to listen to the words being said.
How does the type of material affect our hearing?
Refer to the table. At what distance do you think the words said are easily heard in set A or B?
How does the distance of the speaker and the listener affect the clear hearing and understanding of
words?​