Purpose
To observe the change in the reading of a (digital) decibel meter as sound loudness increases.

Description
Use the digital sound meter to measure sound intensity
- Have students clap, first softly then gradually louder and louder
- Have one student clap loudly, starting right beside meter and gradually increase the distance between his/ her hands and the meter.
(Use the overhead camera in the large classrooms to show the meter display)

Equipment
dB Meter