Wonderopolis

How Does a Traffic Light Work?

Today’s Wonder of the Day is what you get when you mix red, yellow, and green!

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How Does a Traffic Light Work?

How Do Fire Hydrants Work?

Today’s Wonder of the Day comes in really handy in case of a fire!

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How Do Fire Hydrants Work?

How Deadly Are Poison Dart Frogs?

Even if you’re looking for Prince Charming, you’ll probably want to skip kissing the subject of today’s Wonder of the Day!

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How Deadly Are Poison Dart Frogs?

What Are Stars Made of?

Today’s Wonder of the Day takes a closer look inside the brightest lights in our galaxy!

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What Are Stars Made of?

Why Does Green Mean Go?

On your mark…get set…go straight to Wonderopolis today!

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Why Does Green Mean Go?

Why Are Flamingos Pink?

Think pink is a flamingo’s favorite color? Join us in Wonderopolis today to find out how flamingos get their signature color. (Hint: They’re not blushing!)

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Why Are Flamingos Pink?

Why Do People Wear Black at a Funeral?

Today’s Wonder of the Day may put you in a solemn mood.

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Why Do People Wear Black at a Funeral?

Why Do People Wish on Dandelions?

We believe you’ll think today’s Wonder of the Day is just dandy…and we ain’t lyin’!

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Why Do People Wish on Dandelions?

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.

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Why Is Cheddar Cheese Orange?

How Do You Become a Referee?

Today’s Wonder of the Day looks really good in stripes!

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How Do You Become a Referee?

Why Are People All Different Colors?

Whether you’re brown, yellow, black, white, or some shade in between, today’s Wonder of the Day will take a closer look at the differences that make us all special and unique!

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Why Are People All Different Colors?

How Does an Inkjet Printer Create All the Different Colors?

Today’s Wonder of the Day features all the colors fit to print!

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How Does an Inkjet Printer Create All the Different Colors?

How Sweet Is Honeysuckle?

Some people believe today’s Wonder of the Day is sweeter than honey!

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How Sweet Is Honeysuckle?

What Is Margarine?

Today’s Wonder of the Day tastes great on toast!

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What Is Margarine?

Do Trees Get Scared?

Watch out! Today’s Wonder of the Day may scare you stiff.

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Do Trees Get Scared?

Can You Grow Candy Corn?

Today’s Wonder of the Day will satisfy your sweet tooth. We just hope it’s not too corny!

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Can You Grow Candy Corn?

What Is Mustard Made Of?

Hot dog! Join us today for a bright-yellow Wonder of the Day that goes great with ketchup and is a perennial picnic favorite.

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What Is Mustard Made Of?

Do All Taxis Have Four Wheels?

Today’s Wonder of the Day will take you for a ride…for a fee!

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Do All Taxis Have Four Wheels?

Why Do Rainbows Appear?

What do rainclouds and Roy G. Biv have in common? Swing by Wonderopolis today to meet this WONDERfully colorful fellow and find out.

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Why Do Rainbows Appear?

Why Is Grass Green?

Roses are red, violets are blue, grass is...green. But why? Mow-sy on over to today's Wonder to find out what’s responsible for grass’s signature color.

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Why Is Grass Green?