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Name: Ella
Status: Student
Grade: K-3
Location: VT
Country: United States
Date: Spring 2010

Why does a Yo-yo go down one side of its string and up the other side?

Hi Ella,

A the yo-yo unwinds, the body starts spinning. That spinning motion keeps going, and guides which direction it winds back up the string.

Hope this helps,
Burr Zimmerman

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