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Explore Wonders | Find: 哪里能买到雷丁大学文凭毕业证<网址:ｂｚｗ９８５.ｃｏｍ>朔州哪里能办中国邮政储蓄银行定期存单-哪里能办韩国天主教大学文凭毕业证{官网:ｚｊｗ２１１.ｃｏｍ}哪里可以办台湾国立台湾大学文凭毕业证Ae | Wonderopolis

Wonderopolis

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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!

#473

Who Invented Sticky Notes?
Do Robots Wonder?

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

#629

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!

#403

Why Do Sidewalks Have Lines?
Why Is Ice Slippery?

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

#494

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!

#1147

What Is a Pothole?