60 minutes presentation
$3.00 per student
Suitable for Science classes
Year 4 to Year 9
This program is introduced with a demonstration of a range of rare, early hearing aids.
The source of sounds (vibrations) and frequency of sounds are demonstrated.
The range of frequencies that humans can hear is demonstrated using an audio signal generator.
The importance of ear plugs is illustrated by the use of a fog horn and a decibel meter to measure loudness.
How the ear works is explained and care of our ears is discussed.