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What Makes Popcorn Pop?

Butter? Check! Salt? Check! Movie? Check! Now what are we missing…? Visit Wonderopolis today to find out!

#20

What Makes Popcorn Pop?

What Is a CAT Scan?

Despite its name, no felines were involved in the creation of today’s Wonder of the Day!

#606

What Is a CAT Scan?

Why Do Some People Need Glasses?

Today’s Wonder of the Day is creating a spectacle in Wonderopolis. Why don’t you join us? It’d be so nice to see you.

#113

Why Do Some People Need Glasses?

What Is Chiari Malformation?

Today’s Wonder is about what can happen when your noggin is a little different.

#2908

What Is Chiari Malformation?

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?

When Is the Winter Solstice?

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

#1587

When Is the Winter Solstice?

What Is a Volcano?

We’re about to erupt with excitement. Join us in Wonderopolis today for a Wonder of the Day that will blow your top!

#139

What Is a Volcano?

Who Was Alexander the Great?

Today’s Wonder of the Day may be one of the greatest ever written!

#1792

Who Was Alexander the Great?

Why Do You Need To Wash Your Hands?

Lather, rinse, repeat! Lather, rinse, repeat! Clean hands are the focus of today’s sparkly, shiny Wonder of the Day!

#186

Why Do You Need To Wash Your Hands?

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?

Who Is Sandra Cisneros?

Learn about a talented author in today’s Wonder of the Day!

#2809

Who Is Sandra Cisneros?

How Is a $1 Bill Made?

Don’t pass the buck. Head directly to Wonderopolis for a wonder that makes a lot of cents (a hundred of them, to be exact)!

#158

How Is a $1 Bill Made?

Why Is Sand or Salt Put On Roads When It Snows?

You may want to take today’s Wonder of the Day with a grain of salt. It won’t break the ice, but it will melt it!

#103

Why Is Sand or Salt Put On Roads When It Snows?

Have You Ever Played Racquetball?

Today’s Wonder of the Day is making quite the RACQUET!

#2755

Have You Ever Played Racquetball?

How Can Dogs Hear Things We Can’t?

Have you ever wondered how dogs can hear things we can’t? Let’s find out what makes man’s best friend such a good listener.

#1194

How Can Dogs Hear Things We Can’t?

Who Invented Blue Jeans?

No shirt, no shoes, no service. Well, pants shouldn’t be optional either! Join us in Wonderopolis today for a lesson about dynamite denim!

#146

Who Invented Blue Jeans?

How Many Stairs Can You Climb?

Step right up! You’re sure to enjoy today’s Wonder of the Day!

#1784

How Many Stairs Can You Climb?

What Is the Giant Magellan Telescope?

If you’re joining us in Wonderopolis today, set your sights on the stars!

#2197

What Is the Giant Magellan Telescope?

Are Naps Good for the Human Body?

Be sure to get some good shut-eye before you read today’s Wonder of the Day!

#2321

Are Naps Good for the Human Body?

Why Do Sidewalks Have Lines?

Today’s Wonder of the Day will be a walk in the park if you stay between the lines!

#403

Why Do Sidewalks Have Lines?

Explore the World of Wonders

What Makes Popcorn Pop?

What Is a CAT Scan?

Why Do Some People Need Glasses?

What Is Chiari Malformation?

What’s Your Zodiac Sign?

When Is the Winter Solstice?

What Is a Volcano?

Who Was Alexander the Great?

Why Do You Need To Wash Your Hands?

How Many Hot Dogs Can You Eat In 10 Minutes?

Who Is Sandra Cisneros?

How Is a $1 Bill Made?

Why Is Sand or Salt Put On Roads When It Snows?

Have You Ever Played Racquetball?

How Can Dogs Hear Things We Can’t?

Who Invented Blue Jeans?

How Many Stairs Can You Climb?

What Is the Giant Magellan Telescope?

Are Naps Good for the Human Body?

Why Do Sidewalks Have Lines?

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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