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Why Do Onions Make You Cry?

Let’s peel back the layers and explore the secret power behind this culinary tearjerker.

#54

Why Do Onions Make You Cry?

What Bedtime Story Would You Tell?

Become the star of your own bedtime story. All you need is a dash of imagination and a pair of pajamas.

#29

What Bedtime Story Would You Tell?

What Causes a Shooting Star?

Today’s Wonder of the Day features some real rock stars that are out of this world!

#11

What Causes a Shooting Star?

Can You Train a Goldfish?

Today in Wonderopolis, check out the little gold guy swimming around the bowl. He may be smarter than you think.

#18

Can You Train a Goldfish?

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?

Have You Ever Wished Upon a Shooting Star?

Today’s Wonder of the Day just might be a wish come true!

#1990

Have You Ever Wished Upon a Shooting Star?

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?

Why Is April 11, 1954, the Most Boring Day in History?

This Wonder of the Day is anything but BORING!

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Why Is April 11, 1954, the Most Boring Day in History?

Why Do Some Years Leap Ahead?

Today’s Wonder of the Day only comes around once every four years. Don’t miss it!

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Why Do Some Years Leap Ahead?

How Many Judges Are On the Supreme Court?

What has 18 arms, 18 legs and wears black robes? We swear the answer isn’t scary, but you’ll have to judge for yourself!

#174

How Many Judges Are On the Supreme Court?

How Are Currency Exchange Rates Determined?

Today’s Wonder of the Day will cost you one dollar…or 18 pesos…or 110 yen…

#2057

How Are Currency Exchange Rates Determined?

Who Invented Rock and Roll?

Are you ready to jam? You might want to turn today’s Wonder of the Day up to 11!

#2000

Who Invented Rock and Roll?

Who Was the Red Baron?

Today’s Wonder of the Day features a real-life flying ace who also happens to be Snoopy’s arch-nemesis!

#2214

Who Was the Red Baron?

Who Is the Unknown Soldier?

We’d love to tell you who today’s Wonder of the Day is about, but unfortunately we don’t know.

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Who Is the Unknown Soldier?

What’s Your Zodiac Sign?

Today’s Wonder of the Day will have you looking toward the heavens for a sign!

#986

What’s Your Zodiac Sign?

How Long Can You Hold Your Breath Underwater?

Take a deep breath and get ready to plunge into today’s all-new Wonder of the Day!

#310

How Long Can You Hold Your Breath Underwater?

What Are the Blue Angels?

What’s that way up there in the sky? Find out today in Wonderopolis!

#1940

What Are the Blue Angels?

Why Do You Have To Go To Bed Before Dark?

If you want to be prepared for the Wonder of the Day, you need to get a good night’s sleep. Time for bed!

#316

Why Do You Have To Go To Bed Before Dark?

When Is the Winter Solstice?

Join us in Wonderopolis today as we greet a new season!

#1587

When Is the Winter Solstice?

What Is the Birthday Paradox?

Today in Wonderopolis we’ll be blowing out some birthday candles!

#1757

What Is the Birthday Paradox?

Explore the World of Wonders

Why Do Onions Make You Cry?

What Bedtime Story Would You Tell?

What Causes a Shooting Star?

Can You Train a Goldfish?

How Old Are Fairy Tales?

Have You Ever Wished Upon a Shooting Star?

What Is a Prime Number?

Why Is April 11, 1954, the Most Boring Day in History?

Why Do Some Years Leap Ahead?

How Many Judges Are On the Supreme Court?

How Are Currency Exchange Rates Determined?

Who Invented Rock and Roll?

Who Was the Red Baron?

Who Is the Unknown Soldier?

What’s Your Zodiac Sign?

How Long Can You Hold Your Breath Underwater?

What Are the Blue Angels?

Why Do You Have To Go To Bed Before Dark?

When Is the Winter Solstice?

What Is the Birthday Paradox?

SCIENCE 1252 Wonders

MATH 51 Wonders

SOCIAL STUDIES 643 Wonders

LANGUAGE ARTS 162 Wonders

TECHNOLOGY 292 Wonders

ARTS & CULTURE 565 Wonders

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