• Why do we vote on Tuesdays?
  • Why do we vote in November?
  • Since when have we voted on the first Tuesday after the first Monday in November?
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Election Day in the United States has been the first Tuesday after the first Monday in November since Congress’ decision in which year?

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  • Which state has the most people?
  • How many people are there on Earth?
  • What is the population of your state?
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Approximately how many people are there on Earth?

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  • What is sleep apnea?
  • What causes sleep apnea?
  • How is sleep apnea treated?
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Which is the BEST evidence that sleep apnea is common?

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  • What is the Medal of Honor?
  • What is valor?
  • Who is Salvatore Giunta?
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How many people have received the Medal of Honor twice?

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  • What are the seven seas?
  • What can be found in the world’s oceans?
  • How can we take care of our oceans?
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What causes scientists to think climate change is negatively affecting the Arctic Ocean?

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...Questions in the Wonder Bank and counting! Here are the latest...

Latest from the Wonder Bank

  • how are hot dogs made
  • What is sign language?
  • who invented math
  • Who was Jonny depp
  • Can you prevent the Carona Viris?
  • how did people name things?
  • robot/how to make one
  • fennece foxes
  • Why do we need to breath to survive
  • I wonder who made wonderopolis
  • Is food edible?
  • How did they host all of these games
  • Why do cats not listen to their owners?
  • why does th earth have gravity
  • why is hot water foggy
  • Arcitc fox
  • How was the solar system created?
  • how do i live
  • what is live
  • what is 1 +1
  • how do we speak
  • what came first the chicken or the egg
  • Where did fast food come from?
  • I wonder how much people play pickle ball
  • How do we get your last names?
  • Why are there no brown flowers
  • how are words made?
  • why are there no green flowers?
  • Who was he first person to ever murder someone?
  • How does reading affect the brain?
View all questions in the Wonder Bank

Top Nominated Wonder Questions:

  • +58

    Why do Olympians bite their medals?

    Sam — Glen Allen, VA

  • +50

    What causes blindness?

    Katherine — Owatonna, MN

  • +46

    How does weeds grow?

    Rafiul — Sydney, AL

  • +38

    How many animals are on earth?

    helaina — clearwater, FL

  • +35

    Why does a slinky get tangled so easily and is so hard to untangle?

    Terry — Garner, NC

  • +34

    Why do we procrastinate?


Vote for wonder nominees

Explore the World of Wonders

Discover the latest Wonders from SOCIAL STUDIES: All Saints Day, American, California, candidate, civil duty, Civil War, and more

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Are You a Good Observer?

Have you ever had a friend claim that he can't see the forest for the trees? If so, you may have WONDERed what this curious phrase means. If you can see the trees, how can you not see the forest?

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Can You Travel the World Without Leaving Home?

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Wonderopolis #2

How Do Streets Get Their Names?

When you hear Broadway, Abbey Road, and Bourbon Street, what comes to mind? Bright lights? The Beatles? Mardi Gras? They are some of the most recognizable streets in the world, and though you may neve...

Wonderopolis #22

How Can Spare Change Make a Big Difference?

Many children are already involved in fundraising through their schools, scouts and churches, but bringing philanthropy into the home makes giving back to your community a whole-family effort.

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