000			00914nam a2200181 a 4500
005			20150715171454.0
020			_a1572253398
245			_aAll about sound / _cSchlessinger Media ; First Light Pictures, Inc. ; executive producers, Andrew Schlessinger, Tracy Mitchell & Paul Kramer ; producer Olga Palacio.
250			_a1st. ed.
260			_aWynnewood, PA : _bSchlessinger Media, _c2000.
440			_aSchlessinger science library. Physical science for children
500			_a1 videocassette (23 min.) : sd., col. ; 1/2 in. + teacher's guide.
520			_aLearn about sound from the source that creates it to the mechanics of the ear that hears it. Discover why sound needs a medium to travel, why there's none in space and why some animals see by using sound. Hands-on activity.
650			_aSound.
650			_aPhysical sciences.
650			_aVideo recordings for the hearing impaired.
942			_c UKN
999			_c18161 _d18161