On Monday we spent some time experimenting with bullroarers - ancient instruments and communication tools. We are looking this term at energy and in particular sound energy. We explored the questions - what makes the bullroarers produce sound? What changes the kinds of sounds it produces? Why did some of the bull roarers not work? It was lots of fun and has got us thinking about the incredible energy of sound. We also looked at these amazing videos where water is bent by sound and one where sound produces patterns in sand. Click on them to view.
Wednesday, 16 October 2013
SOUND - bull roarers, bending water and sand patterns
On Monday we spent some time experimenting with bullroarers - ancient instruments and communication tools. We are looking this term at energy and in particular sound energy. We explored the questions - what makes the bullroarers produce sound? What changes the kinds of sounds it produces? Why did some of the bull roarers not work? It was lots of fun and has got us thinking about the incredible energy of sound. We also looked at these amazing videos where water is bent by sound and one where sound produces patterns in sand. Click on them to view.
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