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Muscles Web Extra

  • Aired: 12/17/2013
  • 07:23
  • Rating: TV-G
In this Science Trek: The Web Show, Dr. Tony Joseph answers students’ questions about the muscular system. Find out what happens when your muscles get sore and why you get goose bumps.
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Muscles Web Extra
Muscles Web Extra
Find out more about muscles on this Science Trek: The Web Show.
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