We have been learning about all kinds of ENERGY in science, and sound energy is one of them.
In order to see the invisible compression waves in action, we decided to do an experiment. Can we prove that sound actually carries energy?
Could we, by just the power of sound, move salt particles without touching them or blowing on them?
Here is the class in action, saying "ahhhhh" softly at first...
And then a super loud "AHHHHH!!!" to see what happens.
We recorded our observations. Yes, indeed, sound does carry energy. Our voices vibrated the saran wrap, and made the salt particles jump all over the place!
We recorded a few SLOW MOTION VIDEOS to capture the moment. Enjoy!
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