William N.
4/3/2013 04:48:56 am

Thorugh your website I learned many interesting things like the Doppler Effect and the difference between sound traveling between water and air. I really liked the .gif and your home page. Great informative website

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Dionne Fajardo
4/4/2013 04:02:09 am

I learned so much about sound, including how it travels and the different types. Your website is very well done!

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