Like a seesaw
Think of a seesaw at the playground. When one person goes up, the other goes down. Then they switch places, that's back-and-forth, too.
Like sharing toys
If you and your friend are taking turns with a toy, like passing it back and forth between you, that’s back-and-forth in action!
It's just two things switching places or taking turns. You can find it everywhere, from games to everyday actions!
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See also
- How Does France’s Darkest Hours: When the SS Publicly Executed Resistance Fighters Work?
- How To Use An Abacus?
- What do GPS and AGPS mean?
- What is 9 calories per gram?
- What is Temperatures between 60°C and 75°C?
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Categories: Science