Look Inside a Rattlesnake's Rattle

From Deep Look

Look Inside a Rattlesnake's Rattle
4 min3rd4th5th6thScience
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Summary

A rattlesnake's warning buzz comes from hollow, interlocking rings on its tail shaking incredibly fast. Deep Look films inside the rattle to show how the loose segments knock together to make sound.

Viewer safety

Ages 7+Mild peril

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Teaching resources

Discussion questions

Talk about it

A rattle is a stack of loose, hollow segments. When the snake shakes its tail super fast, the segments clack together and vibrate the air, making the warning buzz.

  1. What makes the rattlesnake's buzzing sound?
  2. Why is making a loud warning useful for the snake?
  3. How is shaking the rattle better for the snake than biting to defend itself?

Quick work-a-long

Vocabulary: vibration, rattle, warning, sound.

Try it: Put dry beans in a container and shake it fast, then slow. Write how shaking speed changes the sound, like a rattle.