X1011703064-00370-88595</DOCNO>SENSING SOUND VIBRATIONS Part 1 CONCEPTS: sound BACKGROUND: Sounds are vibrations in the air that are caused by a vibrating object of some 
(Sounds; are; vibrations in the air that are caused by a vibrating object of some) (vibrations in the air; are caused; by a vibrating object of some)
Sounds vibrations in the air
are are caused
vibrations in the air that are caused by a vibrating object of some
by a vibrating object of some