This activity has 4 parts, but mainly requires the computer room. Part 1 is investigating what sound actually is, Part 2 involves exploring how we experience the world with sound and Parts 3 and 4 are on computers. I have chosen two websites, the first has a tone generator so the students can play around with different frequencies of sound and test the limit of hearing. The second is a piece of software that can be used in portable format called Audacity. It can be used to visualise sound waves. Using either rerecorded or other available tracks (it takes a lot of file formats), the students can investigate what sound looks like.
This activity is connected to the Interactions unit. Audacity can simply be used to visualise sound recordings and replay them - compare loud and quiet sounds or compare different types of music eg. drumming, opera, rock music and a pure tone; the sound waves over time look very different. Audacity is also useful if you want to do sound editing for example, if the students want to make a voice-over for a video. I worked out how to use the basic features of Audacity by myself so I promise that it is not complicated.
Link to activity (pdf):
Sound lab activity
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