4.3 Our Ears Hear Sound
Name:
Date:
Our ears hear sound when vibrations of air particles are channelled down the ear
canal by the auricle causing your ear drum to vibrate.
Answer the following: what is the function of the outer, middle and inner ear?
Outer: _____________________________________________________________
Middle: _____________________________________________________________
Inner: ______________________________________________________________
Label the diagram below:
 Use your current knowledge.
 If you need help use your textbook.
Using your textbook summarise the function of each part of the ear in 1 – 2 dot
points:
Part
Auricle
Function


Ear canal


Eardrum


Middle ear


Eustachian tube


Cochlea


Auditory nerve


Semicircular canals


Brain


Once finished:
 Answer apply and analyse questions in textbook (p. 75).