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Why do seashells sound like the ocean?

A seashell catches soft sounds around you and makes them bounce inside.

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Pip’s answer

  1. A seashell catches soft sounds around you and makes them bounce inside.
  2. Those little sounds swirl round and round the curly shell.
  3. The swirly sounds mix into a soft whoosh, just like waves. Whooosh!
  4. Ooh, even a cup by your ear can make a little whoosh!

Try it together

Can you cup your hand by your ear and listen?

For grown-ups

The 'ocean' you hear in a seashell is actually ambient noise around you. The shell's curved, hollow shape resonates and amplifies certain sound frequencies, creating a whooshing sound like waves. A cup or your cupped hand works similarly.

Ask your child: Does the whoosh change if you listen to a shell in a quiet room?

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