| Format: | Tells what causes sounds, how the brain receives and recognizes sounds, and what effect sounds have on the individual. Teaches about the structures of the ear and uses animation to show how sound waves travel into the ears. |
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| Copyright: | 1982 |
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| LCCN: | 82706606 /F |
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| Publisher: | Washington, D.C. : National Geographic Society, Educational Services, |
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| Physical Details: | 1 videorecording (15 min.) : sd., col. + |
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| Notes: | Title from data sheet. | Intended audience: Primary through intermediate grades. | Issued as cassette (U-matic 3/4 in. or Beta 1/2 in. or VHS 1/2 in.) or reel (1/2 in. or 1 in.) | Issued also as motion picture. |
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| Record No.: | 195439 |
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04. English Audio Visual