04/29/11
Post date: Apr 29, 2011 8:0:10 PM
Bell Ringer: Elephants can hear sounds with much lower pitches than people can hear. Why do you think this is?
Finish 15.1 notes
Sound lab - due Monday
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Post date: Apr 29, 2011 8:0:10 PM
Bell Ringer: Elephants can hear sounds with much lower pitches than people can hear. Why do you think this is?
Finish 15.1 notes
Sound lab - due Monday