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Why Gray Hair Grows

Why does hair turn gray when you get older?

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Early Gray Hair Blues

My sister is 20 years old and already has lots of gray hair. Will ...

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Wrinkles?!

Why does skin wrinkle?

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Late Bloomers

I'm 11 and not going through puberty. Is something wrong with me?

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Why do boys’ voices change?

Is your voice changing?

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Time for a Shave

Why are my parents letting me shave now?

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Can You Really Freeze Your Tongue To A Pole?

MythBusters investigate this popular double-dog-dare!

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Contagious Yawning

Does seeing someone yawn make you yawn too?

Body System Word Find

Body System Word Find

See how fast you can find these body system words!

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