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Wonderopolis

What’s Your GPA?

You might want to bring your calculator to today’s above-average Wonder of the Day!

#1809

What’s Your GPA?
What Caused the Big Bang?

Ready to start your day with a BANG? This Wonder of the Day is a BIG deal!

#2399

What Caused the Big Bang?
What Is a Spit Valve?

We don’t mean to toot our own horn, but we think today’s Wonder of the Day will be music to your ears.

#399

What Is a Spit Valve?
Who Is Uncle Sam?

Today’s Wonder of the Day features everyone’s favorite uncle!

#527

Who Is Uncle Sam?
How Do Mood Rings Work?

We hope you’re in the mood for an interesting Wonder of the Day today!

#412

How Do Mood Rings Work?