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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?

How Does the Internet Work?

Without today’s Wonder of the Day, Wonderopolis wouldn’t exist!

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How Does the Internet Work?

What Is a Haiku?

Are you a poet and don’t even know it? Be sure to join us in Wonderopolis today to find out!

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What Is a Haiku?

Why Do I Burp?

Today’s Wonder of the Day might have you saying, “Excuse me!”

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Why Do I Burp?

Do Horses Sleep Standing Up?

Can you imagine trying to sleep standing up? Sounds impossible, but it’s not…at least not for the animal featured in today's Wonder of the Day!

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Do Horses Sleep Standing Up?

Why Are Lemons Sour?

Have you ever wondered what makes lemons so sour? Take a bite out of today’s Wonder of the Day to find out what gives this little yellow fruit its pucker power.

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Why Are Lemons Sour?

Who Invented the Cowboy Hat?

Howdy pardners! Saddle up your pony and trot on over to Wonderopolis to learn about the most famous hat in the Wild West.

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Who Invented the Cowboy Hat?

Why Do Bananas Bruise?

Today’s Wonder of the Day is mainly yellow…but also a little black and blue!

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Why Do Bananas Bruise?

Why Do Superheroes Have Secret Identities?

If you’re coming to Wonderopolis today, don’t forget to bring your cape!

#15

Why Do Superheroes Have Secret Identities?

What Would You Do on a Staycation?

Grab your sleeping bag and bring along a marshmallow. We’re going on a staycation!

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What Would You Do on a Staycation?

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!

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Can You Travel the World Without Leaving Home?

How Can Spare Change Make a Big Difference?

Did you know you can turn plain change into positive change? You don’t need magic, just a big heart.

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How Can Spare Change Make a Big Difference?

Why Is Ocean Water Salty?

Today’s Wonder might be the saltiest you’ve ever SEA-n!

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Why Is Ocean Water Salty?

Who Invented Cotton Candy?

Step right up and get ready to take a bite out of a super sweet treat today in Wonderopolis!

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Who Invented Cotton Candy?

Explore the World of Wonders

Why Is Cheddar Cheese Orange?

How Does the Internet Work?

What Is a Haiku?

Why Do I Burp?

Do Horses Sleep Standing Up?

Why Are Lemons Sour?

Who Invented the Cowboy Hat?

Why Do Bananas Bruise?

Why Do Superheroes Have Secret Identities?

What Would You Do on a Staycation?

Can You Travel the World Without Leaving Home?

How Can Spare Change Make a Big Difference?

Why Is Ocean Water Salty?

Who Invented Cotton Candy?

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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