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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 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 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?

What Is the Birthday Paradox?

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

#1757

What Is the Birthday Paradox?

Why Do Some Years Leap Ahead?

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

#514

Why Do Some Years Leap Ahead?

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?

Are Jellyfish Made Of Jelly?

Today’s Wonder of the Day would go perfectly with a peanut butter fish!

#408

Are Jellyfish Made Of Jelly?

Why Don’t All Months Have the Same Number of Days?

We hope you’ll join us in Wonderopolis today. We’re counting on you!

#1595

Why Don’t All Months Have the Same Number of Days?

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?

Who Were the Navajo Code Talkers?

Get some decoding practice by reading today’s Wonder of the Day!

#2478

Who Were the Navajo Code Talkers?

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 Duke Ellington?

Learn about a jazz legend in today’s Wonder of the Day!

#2735

Who Was Duke Ellington?

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 Aren’t Hamburgers Made Of Ham?

Get your buns over to Wonderopolis immediately! We’re sinking our teeth into a juicy Wonder of the Day that’ll leave you hungry for more.

#185

Why Aren’t Hamburgers Made Of Ham?

How Much Water Is In a Watermelon?

What’s green on the outside, pink on the inside, and full of water? Find out today in Wonderopolis!

#330

How Much Water Is In a Watermelon?

How Often is “Once in a Blue Moon”?

This Wonder of the Day really BLUE us away!

#2546

How Often is “Once in a Blue Moon”?

Who Was the First Female and American Indian Engineer?

Join Wonderologists today as we learn about a woman who played an important role in putting people on the moon.

#2928

Who Was the First Female and American Indian Engineer?

How Many Countries Are There?

You’re going to need more than just your fingers and toes to count today’s Wonder of the Day!

#1303

How Many Countries Are There?

Do All Mountains Wear Snowcaps?

If you’re coming to Wonderopolis today, we suggest you bring a jacket and your climbing boots!

#534

Do All Mountains Wear Snowcaps?

Explore the World of Wonders

What Makes Popcorn Pop?

What Bedtime Story Would You Tell?

What Is a Prime Number?

What Is the Birthday Paradox?

Why Do Some Years Leap Ahead?

Why Do Some People Need Glasses?

Are Jellyfish Made Of Jelly?

Why Don’t All Months Have the Same Number of Days?

What’s Your Zodiac Sign?

Who Were the Navajo Code Talkers?

When Is the Winter Solstice?

What Is a Volcano?

Who Was Duke Ellington?

Who Was Alexander the Great?

Why Aren’t Hamburgers Made Of Ham?

How Much Water Is In a Watermelon?

How Often is “Once in a Blue Moon”?

Who Was the First Female and American Indian Engineer?

How Many Countries Are There?

Do All Mountains Wear Snowcaps?

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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