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Interactive Sound Ruler
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www.nidcd.nih.gov/...decibel.asp
db
primary
science
sound
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Monica Bojan
on 05 Oct 08
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Monica Bojan
on 05 Oct 08
This little animation shows which sounds are safe for humans to hear and which can be damaging.
<div class="cArrow"> </div><div class="cContentInner">This little animation shows which sounds are safe for humans to hear and which can be damaging.</div>
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Monica Bojan on 05 Oct 08This little animation shows which sounds are safe for humans to hear and which can be damaging.
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