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Science Buddies Original
Science Fair Project Idea
Can you hear me now . . . ? Just how loud does a sound have to be for us to hear it? And how loud is too loud for our ears? Learn to measure levels of sound in this project, and discover the amazing auditory range your ears can detect in the noisy world around you. If you have a smartphone handy, you can even do this project without purchasing any additional materials, by using Google's Science Journal app. Read more
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- Less Details
Time Required Average (6-10 days)
Tinkering
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Do not try to measure very loud noises (lawnmowers, chainsaws, concerts, etc.) for this project unless you wear ear protection.
Free science fair projects.