How Does the Ocean Affect Earth’s Rotation?

The ocean moves like a giant dance partner, helping Earth spin. When water flows in and out with the tides, it pushes or pulls on our planet just like when you swing your legs to turn around. Sometimes the ocean slows Earth down, and sometimes it speeds it up, like a spinning top that wobbles.

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Examples

When you swing your legs on a swing, you move back and forth, like tides moving across the ocean.
Imagine spinning around with a heavy backpack: when you pull it close, you spin faster; when you let it go, you slow down.
The moon’s pull on Earth is like someone pushing you from behind as you turn.

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Categories: Environment · Earth rotation,Tides,Ocean currents