Curious Kids: why are some shells smooth and some shells corrugated?

Maëlle, 7, wants to know why some shells are smooth, while others are corrugated. It turns out that while corrugated shells are strong, smooth shells can move fast.

Curious Kids – News, Research and Analysis – The Conversation

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Curious Kids: why are some shells smooth and some shells corrugated?

Curious Kids: why are some shells smooth and some shells corrugated?

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The Conversation

The Conversation

2,709,778 Shell Images, Stock Photos, 3D objects, & Vectors

2,709,778 Shell Images, Stock Photos, 3D objects, & Vectors

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2,709,778 Shell Images, Stock Photos, 3D objects, & Vectors