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Wonderopolis

Why Does Hair Turn Gray?

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

#6

Why Does Hair Turn Gray?
Why Do Birds Fly in a V?

What’s that up in the sky? Is it a plane? No, it’s today’s Wonder of the Day!

#28

Why Do Birds Fly in a V?
Where in the World Is Kolkata?

Join us in Wonderopolis today for a visit to one of the most populous countries in the world!

#2022

Where in the World Is Kolkata?
How Old Are Fairy Tales?

If all the fairy tales got mixed up, what stories would they tell? Let’s find out today in Wonderopolis!

#21

How Old Are Fairy Tales?
Can You Travel the World Without Leaving Home?

Today's Wonder of the Day will have you traveling all over the world...without ever leaving home!

#10

Can You Travel the World Without Leaving Home?
Why Is Cheddar Cheese Orange?

Join us in Wonderopolis today as we slice into a mystery that some might say is more than a little cheesy.

#52

Why Is Cheddar Cheese Orange?
Can Plants Eat Insects?

Welcome to the jungle! We’re taking an up-close look at some interesting plants today in Wonderopolis!

#3

Can Plants Eat Insects?
How Many Hot Dogs Can You Eat In 10 Minutes?

We sure hope you’re hungry. Today’s Wonder of the Day is sure to fill you up!

#273

How Many Hot Dogs Can You Eat In 10 Minutes?
What Is a Prime Number?

Today’s mathematical Wonder of the Day may have you counting 2, 3, 5, 7, 11, 13, 17, 19, 23, 29…

#190

What Is a Prime Number?
How Many Is a Googol?

If you’re searching for clues about today’s Wonder of the Day, just cool your engines and read on!

#411

How Many Is a Googol?
Who Was the First Person in Space?

Today’s Wonder of the Day is out of this world!

#890

Who Was the First Person in Space?
How Does the Binary System Work?

We need help deciphering today's Wonder of the Day—it's all ones and zeroes!

#1869

How Does the Binary System Work?
What Is an Eagle?

Fore! With a stroke or two of luck, today’s Wonder of the Day will soar like it has wings.

#189

What Is an Eagle?
Who Was Shakuntala Devi?

Our Wonders of the Day just keep MULTIPLYing!

#2811

Who Was Shakuntala Devi?
Where Is the Largest Library in the United States?

Be sure you “check out” today’s Wonder of the Day!

#568

Where Is the Largest Library in the United States?
Why Do I Need To Learn Algebra?

Today’s Wonder of the Day might have you WONDERing what x is!

#1534

Why Do I Need To Learn Algebra?
Who Invented Numbers?

We’ll get right to today’s Wonder of the Day in 3…2…1…

#2071

Who Invented Numbers?
What Is Ramadan?

Join us today when we’ll learn about a religious holiday that’s celebrated by millions of people around the world!

#308

What Is Ramadan?
How Do You Connect the Dots?

Today’s Wonder of the Day starts at “1” and goes to “2” and then to “3” and then to…

#1164

How Do You Connect the Dots?
How Far Can a Paper Airplane Fly?

Spread your wings and take flight with today’s all-new Wonder of the Day!

#626

How Far Can a Paper Airplane Fly?

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