soundandhearing4u
Welcome to our grade 3 unit: Sound and Hearing. Have fun, as you check out the various sites and activities.
My Quia activities and quizzes
How Sound Works
https://www.quia.com/sh/18039.html
Sound Waves and Hearing
https://www.quia.com/sh/29468.html
Useful links
Last updated  2008/09/28 01:20:22 MDTHits  1516