Explore Wonders | Find: 西伯利亚联邦大学student card（证件网:ｂｚｗ９８５.ｃｏｍ)台州项城13年高中毕业证-渭南师范学院学位证补办最新政策[办证网:ｂｚｗ９８５.ｃｏｍ]温州大学城市学院毕业证样本kt | Wonderopolis

Explore Wonders | Find: 西伯利亚联邦大学student card（证件网:ｂｚｗ９８５.ｃｏｍ)台州项城13年高中毕业证-渭南师范学院学位证补办最新政策[办证网:ｂｚｗ９８５.ｃｏｍ]温州大学城市学院毕业证样本kt | Wonderopolis

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Do You Think 13 Is Unlucky?

Was that a black cat? Watch out! Whew! That was close. We hope we’re lucky enough to make it through this Wonder of the Day!

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Do You Think 13 Is Unlucky?
Who Invented the Candy Bar?

We bet you’ll love unwrapping today’s tasty Wonder of the Day!

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Who Invented the Candy Bar?
How Much Can You Charge on a Credit Card?

Today’s Wonder of the Day takes a closer look at the power of plastic!

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How Much Can You Charge on a Credit Card?
How Does a Key Card Unlock a Door?

UNLOCK your own curiosity with today’s Wonder of the Day!

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How Does a Key Card Unlock a Door?
Does Your Food Make the Grade?

Today’s Wonder of the Day takes a look at your food’s report card!

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Does Your Food Make the Grade?
How Do You Make Slime?

Today’s Wonder of the Day can turn an ordinary student into a mad scientist!

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How Do You Make Slime?
Have You Ever Been to a Bar Mitzvah?

Today it’s time to party like you’re a 13-year-old boy!

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Have You Ever Been to a Bar Mitzvah?
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…

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What Is a Prime Number?
How Do You Prove Who You Are?

If you’re coming to Wonderopolis today, you’d better bring your I.D.!

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How Do You Prove Who You Are?
How Does Carbon Paper Work?

We hope you enjoy today’s old-school Wonder of the Day!

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How Does Carbon Paper Work?
What Is a Root Canal?

Today’s Wonder of the Day gets to the root of a toothy problem!

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What Is a Root Canal?
Why Was School Created?

Today’s Wonder of the Day features an invention many kids wish could be un-invented!

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Why Was School Created?
Why Do Credit Cards Now Have Chips?

Today’s Wonder of the Day is a chip off the old block!

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Why Do Credit Cards Now Have Chips?
Are Debit Cards and Credit Cards the Same?

A great new Wonder of the Day is in the cards today if you play your hand right!

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Are Debit Cards and Credit Cards the Same?
Who Was Annie Oakley?

We hope you’ll give today’s Wonder of the Day a shot! We think it really hits the mark.

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Who Was Annie Oakley?
Who Was Ritchie Valens?

Tune in to Wonderopolis today for a rockin’ good time.

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Who Was Ritchie Valens?
How Many Donuts Are in a Baker’s Dozen?

Today’s Wonder of the Day features a little added bonus!

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How Many Donuts Are in a Baker’s Dozen?
Do You Like To Play Cards?

Today’s Wonder of the Day is the real deal!

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Do You Like To Play Cards?
What Can You Discover at the Library?

Today’s Wonder of the Day takes a trip to one of our favorite places!

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What Can You Discover at the Library?
Can You Hang On by the Skin of Your Teeth?

Today’s Wonder of the Day might have you reaching for your toothbrush!

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Can You Hang On by the Skin of Your Teeth?

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