The Super Sounds Posted: 21st October, 2010 by the Scientific Group Tags: sound, travels What we wanted to find out: we wanted to investigate how sound travels through materials. Sounds go through some materials better than others. Some louder sounds can damage our ears. Small sounds can not damage our ears. What we used: we put materials into a tube (cotton wool, tin foil, cotton, plastic bag, paper). We measured the sound in (dB) by ringing a bell into the tube. We measured the sound with a sound sensor and here are our results. Click here to go back to the main description of this project.
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