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Explore Wonders | Find: 罗马第一大学毕业证原版<网址:ｚｊｗ２１１.ｃｏｍ>-哪里买罗马第一大学毕业证原版（证件网:ｚｊｗ２１１.ｃｏｍ)-上海奉贤罗马第一大学毕业证原版哪里做-哪里办罗马第一大学毕业证原版c2 | Wonderopolis

Wonderopolis

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Who Was Duke Ellington?

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

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Who Was Duke Ellington?
Why Doesn't Glue Stick To the Inside Of the Bottle?

If you ever find yourself in a sticky situation, today’s Wonder of the Day could be very helpful. Join us as we let the genie — ummm, glue — out of the bottle!

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Why Doesn't Glue Stick To the Inside Of the Bottle?
Who Invented Sticky Notes?

We can’t remember what today’s Wonder of the Day is about. We should’ve written ourselves a note!

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Who Invented Sticky Notes?
Why Are They Called "Ears" of Corn?

Today's Wonder of the Day has ears, but it can't hear a thing!

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Why Are They Called "Ears" of Corn?
Do Robots Wonder?

Today’s Wonder of the Day takes a closer look at machines that sometimes act like people!

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Do Robots Wonder?
Why Do Sidewalks Have Lines?

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

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Why Do Sidewalks Have Lines?
Why Is Ice Slippery?

Skate on over to Wonderopolis today for a Wonder that’s really slick!

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Why Is Ice Slippery?
What Is a Pothole?

We hope today’s Wonder of the Day isn’t an obstacle in your path to learning!

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What Is a Pothole?