Explore Wonders | Find: CELLS | Wonderopolis

Explore Wonders | Find: CELLS | Wonderopolis

Wonderopolis

How Many Cells Are in the Human Body?

Today’s Wonder of the Day takes a look at the trillions of things that make you who you are!

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How Many Cells Are in the Human Body?
How Much Blood Is In Your Body?

Today’s Wonder of the Day is a matter of life and death — but it’s not for the faint of heart!

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How Much Blood Is In Your Body?
What Is Diabetes?

Today’s Wonder of the Day takes a look at the not-so-sweet truth about a condition that affects millions of people.

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What Is Diabetes?
What Is DNA?

Today’s Wonder of the Day dives deep inside your cells to find out what makes you YOU!

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What Is DNA?
Can Frogs Freeze?

Today’s Wonder of the Day is so cool it’ll have you jumping for joy!

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Can Frogs Freeze?
What Is Leukemia?

Today’s Wonder of the Day investigates a vicious killer!

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What Is Leukemia?
What Goes on Inside a Cocoon?

Today’s Wonder of the Day takes a peek inside a unique changing room!

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What Goes on Inside a Cocoon?
What Is Cancer?

Today’s Wonder of the Day takes a closer look at something that affects all of our lives in some way, sooner or later.

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What Is Cancer?
What is a Semipermeable Membrane?

We hope you think this Wonder of the Day is exCELLent!

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What is a Semipermeable Membrane?
Is It Possible To Regrow a Limb?

Today's Wonder of the Day takes a look at the incredible ability of some animals!

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Is It Possible To Regrow a Limb?
What Is a Spleen?

Many people have heard of today's Wonder of the Day... but few people know what it does!

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What Is a Spleen?
How Do Bones Grow?

Today’s Wonder of the Day will really grow on you!

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How Do Bones Grow?
Why Does Hair Turn Gray?

There’s nothing black and white about today’s Wonder of the Day!

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Why Does Hair Turn Gray?
Why Do Chameleons Change Their Colors?

Today’s Wonder of the Day pays a visit to a colorful little critter!

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Why Do Chameleons Change Their Colors?
Can You Collect Sunlight?

If you visit Wonderopolis today, it may seem like SUN-day!

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Can You Collect Sunlight?
What Are Hormones?

Today’s Wonder of the Day features some chemicals that are important in all sorts of ways!

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What Are Hormones?
Who Invented the Microscope?

We hope you’re ready to take an extra close look at today’s Wonder of the Day

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Who Invented the Microscope?
How Does Medicine Know Where You Hurt?

Today’s Wonder of the Day will really hit the spot!

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How Does Medicine Know Where You Hurt?
Can Germs Be Good for You?

Today’s Wonder of the Day may make you want to wash your hands…or not!

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Can Germs Be Good for You?
Can Anything Live Forever?

Has a sea creature found the fountain of youth? Find out today in Wonderopolis!

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Can Anything Live Forever?

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