Wonderopolis
  • What is citizen science?
  • How did citizen science start?
  • Can I be a citizen scientist?
Find it out

Which of the following is NOT an example of citizen science?

Test your knowledge
  • What is the Colosseum?
  • What did Romans watch in the Colosseum?
  • What do people do at the Colosseum today?
Find it out

According to today's Wonder, why was admission to the Colosseum free?

Test your knowledge
  • What is a medical myth?
  • What causes white spots on fingernails?
  • How can I prevent white spots on my fingernails?
Find it out

According to this Wonder, what is the most common cause of white spots on fingernails?

Test your knowledge
  • What is an Alebrije Monster?
  • Where did the idea for Alebrije Monsters come from?
  • How do you make an Alebrije Monster?
Find it out

What caused Pedro Linares to create Alebrije Monsters?

Test your knowledge
  • Who invented YouTube?
  • How many people use YouTube?
  • How has YouTube changed society?
Find it out

Which of these was NOT one of the creators of YouTube?

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187,518

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

Latest from the Wonder Bank

  • why do we live just to die
    Jace
  • could the megladone still be alive in the mariona trench?
    kyla
  • Who are the Chicago White Sox?
    Jack
  • What is fortnite
    PJ
  • Time travel exists right?
    Archt
  • Why do policemen protect our city
    Erick
  • What is wind made of? What creates it?
    Rachel
  • who invented math and why?
    Payton
  • who made diapers
    bob
  • Why can't we remember our dreams
    Makayla
  • Who invented yo mamma jokes
    Bob
  • how cute can animals get?
    Ridge
  • Who invented ABCDEFGHIJKLMNOPQRSTUVWXYZ, abcdefghijklmnopqrstuvwxyz
    Rj
  • more about africa
    Elaina
  • could jurassic world really happen?
    Ridge
  • Who are the Green Bay packers
    Grant
  • could the megladone still be alive in the mariona trench?
    Ridge
  • how do skunks learn to spray
    jessica
  • What is the Illuminati?
    Campbell
  • how are anime shows made
    Nik
  • Why is it hard to realize if something is a dream or not?
    Kahlel
  • Why do we call buildings buildings if they're already built.
    Issac
  • How are movies made?
    Adriana
  • Why do we cry
    Brady
  • where does puppies come from
    cian
  • what do the jews believe?
    emory
  • Food
    Bryanna
  • Why does the sun cause happiness?
    Joshua
  • why do electronic devices screens turn multicolour when the screen gets broken
    william
  • How did dinosaurs die?
    Jordan
View all questions in the Wonder Bank

Top Nominated Wonder Questions:

  • +14304

    Do girls remember their dreams more often than boys and if yes, why?

    Lance — Louisville, KY

  • +12390

    how was water created

    Chiamaka

  • +10177

    Can you mix water and air completly?

    AL

  • +473

    Why are only certain animals our pets?

    teagan — AL

  • +58

    Why do Olympians bite their medals?

    Sam — Glen Allen, VA

  • +50

    What causes blindness?

    Katherine — Owatonna, MN

Vote for wonder nominees

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