Mystery Science: Why Do Your Biceps Bulge?

In this Mystery, students discover the mechanism by which their muscles control their bones to move their bodies.

In the activity, Robot Finger, students construct a model of a human finger and observe how pulling on a string (a model for tendons) causes it to bend at the joints.


Science Topics
Anatomy & Physiology
K-6
4th Grade

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Mystery Science

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Video (Instructional)

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