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  • What is concrete made from?
  • Is concrete the same thing as cement?
  • Why is concrete so commonly used?
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This Wonder was mostly about...

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  • What is stop-motion animation?
  • How is stop-motion animation made?
  • What are some famous stop-motion animation films?
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It takes about ______ pictures to make one second of a stop-motion film.

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  • What is HanaHaki Disease?
  • Can people catch HanaHaki Disease?
  • What are some ways to regulate emotion?
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This Wonder was mostly about...

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  • What was Trajan’s Market?
  • What did people buy at Trajan’s Market?
  • Who was Emperor Trajan?
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Why was Emperor Trajan considered one of Rome’s greatest rulers?

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  • Can you put a secret message in a song?
  • What is a spiritual?
  • What was the Underground Railroad?
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What was the main idea of this Wonder?

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226,264

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

Latest from the Wonder Bank

  • Why do we have fingers
    Elizabeth
  • Why is a circle round?
    Collin
  • at what time was captain underpants invented
    cole
  • why can't canines see color
    A.v
  • What is mardi gras?
    Jean
  • who made bad words
    Jacob
  • Why is the goverment puting cemicels in the water?
    Benjamin
  • who is jonny deep
    trevor
  • How do you see?
    Benjamin
  • wut or grass land like
    Riley
  • how long a movie takes to be made
    Brody
  • Why were Europeans so mean to native americans?
    Ayla
  • Can you sneeze in your sleep?
    Ayla
  • why we use the same words for defrint things
    KADEN
  • How is ice cream made
    kinlee
  • how is gum made
    Brooke
  • who is the founder behind slavery
    Trey
  • why is black history month a thing and why do we celebrtae it
    trey
  • who is Michael Jordan?
    jaydn
  • Is chakra from the show naruto an actual thing in your body
    chase
  • at what time was captain underpants invented
    Caden
  • What is school for?
    cayden
  • What does Mars look like?
    addyson
  • Why do babies blink slowly?
    Angela
  • what is a heel sper
    Megi
  • why is this a thing
    wonderopolis
  • how smart is your brain
    nate
  • when was the first siverwhere or boul or plate made?
    Ari
  • spain vs france
    parker
  • what causes people to become homeless?
    liam
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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?

    Evan

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Where Do Recycled Items Go?

If your city allows you to throw all of your recyclable materials in the same bin, then your city uses a process called “single-stream recycling." Single-stream recycling means there is no need to sep...

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How Does the Internet Work?

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