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        4-8

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        Extreme Sounds

        Young investigators tour New York City, pumping up the volume! They use a decibel meter to monitor the noisiest decibel levels in their favorite urban hang-outs. Plug your ears: this city makes some serious noise. And the results show that when it comes to loud sounds, your ears can fool you.

        http://pbskids.org/dragonflytv/

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