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Sound


Sound

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Item Number:
SM V6027
Price:
$19.95
Format:
DVD
Length:
13 min.
Copyright:
2002
Closed Caption:
Yes
Producer:
Schlessinger Media
Grade Level:
3 - 6
ISBN:
1417100737
UPC:
753201111432
Summary:
In Sound, the inhabitants of Mammoth Island learn how sound energy travels in waves. While herding their mammoths toward fresh pasture through a maze of canyons, someone sneezes and the sound reverberates, startling the timid mammoths and causing them to run away! A visiting inventor explains that sounds are caused by the movement of molecules -- what scientists refer to as vibrations. Thinking about how our ears translate vibrations into sound leads a bright young Islander, Olive, to create a primitive microphone. The islanders use this device with an amplifier and loudspeaker to send out a loud trumpeting mammoth call, and the lost herd reunites and travels to greener pastures. Part of the multivolume The Way Things Work DVD Series, based on the best-selling book by David Macaulay. A teacher's guide is included and available online.

Only available in the US.


Series Name:
    Way Things Work, The



Also from Schlessinger Media
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History of Invention, A
History of Invention, A
Fall of Great Empires
Fall of Great Empires
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Number Patterns


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