Mon Prof Augmenté
Bat Ears and Echoes
Age 10 · Animals
Bats make high squeaks that people cannot hear. The squeaks bounce off things, and the bat listens to the returning echoes to find its way.
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Age 10: open this week
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In the picture
- Open mouth: sends out a high squeak.
- Moth body: reflects the squeak back toward the bat.
- Large ear: catches the returning echo.
Examples
- A ship using sonar to find the sea floor.
- A shout in a canyon coming back as an echo.
Key takeaways
- Bats hear very high sounds that human ears miss.
- They use reflected sound to locate objects in the dark.
Quiz: Bat Ears and Echoes (Age 10)
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How do bats find their way in the dark?
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Why can people not hear bat calls?
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What happens after a bat sends out a squeak?
The answers, each with its explanation, are in the app. This lesson has left the free week, so its quiz is part of the subscription.
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