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Muscle Fibers

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In this activity about human anatomy (page 20 of PDF), learners investigate the structure of muscles by comparing yarn and cooked meat.
$5 - $10 per group Ages 6 - 11 45 to 60 minutes

Secret Messages

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In this activity, learners use Teflon (PTFE) tape to write secret messages.
$1 - $5 per student Ages 6 - 18 10 to 30 minutes