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How Your Muscles Work

From How the Body Works

How Your Muscles Work
6 min2nd3rd4th5th6thScienceHealth
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Summary

Every move you make — a big jump or a tiny blink — takes muscles. Chloe and Nurb explain the different kinds of muscle in your body and show how muscles pull on your bones to create movement, including the busiest muscle of all: your heart.

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All ages
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Teaching resources

Discussion questions

Discussion

Watch, then talk it over.

  1. How do muscles make your bones move?
  2. What is the difference between a muscle you control, like your arm, and one you don't, like your heart?
  3. Why can't a muscle push a bone — only pull it?
  4. What activities help make your muscles stronger?

Quick work-a-long

Words to know: muscle, contract, tendon, voluntary, involuntary

Try it: Bend your arm and feel the muscle on top get shorter and firmer. Write one sentence explaining what the muscle did to move your bone.