• How do you make candles?
  • What are candles made of?
  • When were candles invented?
Find it out

Most candles today are made from what?

Test your knowledge
  • What happens when you break a bone?
  • How quickly do broken bones heal?
  • Do all broken bones require a cast?
Find it out

Doctors use what to determine if a bone is broken and, if so, what type of fracture it is?

Test your knowledge
  • How do cell towers work?
  • How tall are cell towers?
  • Where can you find cell towers?
Find it out

Which type of cell towers offers a range of 10 miles or more in rural areas?

Test your knowledge
  • What is a wormhole?
  • Are wormholes real?
  • Could a wormhole be used to travel to the past?
Find it out

How likely is it that scientists will discover a wormhole that allows intergalactic travel in your lifetime?

Test your knowledge
  • How do screws work?
  • How are screws mainly used?
  • What types of machines are based upon screws?
Find it out

Which of the following machines is NOT based upon the screw?

Test your knowledge
  • When were swings invented?
  • Why does moving your legs help you swing more quickly?
  • What types of energy are involved in swinging?
Find it out

Swings work by converting potential energy into what type of energy?

Test your knowledge
  • How old can you grow?
  • Who is the oldest person who has ever lived?
  • What is life expectancy?
Find it out

Today, an American woman can expect to live about how many years?

Test your knowledge

Where are You Wondering?

Discover Wonder Hotspots nearby and join!


Wonder with Olivia

Student Wonder Ambassador


Wonder Buddy

Always be on the lookout for the presence of WONDER!E.B. White


This back to school blog post is for the teachers of my little sister, Charlotte. On August 31st, she will start kindergarten. Since I won't be at the school where Charlotte is going, I thought I would write a list of "Char-isms" for her teachers, in case they need help while I am not there because let's face it, she IS sort of a handful. Hehehehehe!

View all blog Posts

What Are You Wondering?

Join in the Wonder Creation

Make YOUR wonder a wonderful reality!


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

Latest from the Wonder Bank

  • facts about giant pandas
    charlize STEVENS
  • when was football invented
    kole brock
  • Why do teachers not like google
    shiloh sumner
  • What are the most rare guinea pig breeds?
    Maya M
  • how do you make bath bombs
    Gracie Adams
  • what was the first religon
    Gracie Adams
  • what do buddhists belivie in
    joshua chiwuike
  • Who puts content on Google?
    Gabby Brueck
  • can you clone yourself?
    bob jackston
  • How did cotton candy get it's name?
    Ms. Goodwin
  • How was the first person born?
    kayla romanowski
  • how are seashells made
    Amanda Floyd
  • I am wondering how much sugar it would take to bake a 20 pound cake.
    Macy Smith
  • How do emails send wirelessly?
    Meagan Moss
  • What is the first language to be created?
    Sumanth Jonnadula
  • How do people now alot about gods
    Sumanth Jonnadula
  • how do we think
    Ash Lomax
  • who am i
    Elijah chapman
  • Why is the sky blue?
    Amber Leggett
  • What happens when cornstarch and water mixes together
    Sumanth Jonnadula
  • who created soccer
    sfansmnjjjjjjjj hftftgchcfgh
  • How do snake fangs work?
    Corbin Tones
  • what is my name
    Jocia chapman
    Adenn Korm
  • Why do we eat food?
    Kool Popsickle
  • Why does cheese taste so good?
    Kool Popsickle
  • does gum have less mass when you chew it
    jillian Friedman
  • How many possums are left.
    Juliette Timmons
  • What happens when you die?
    Ana Perez
View all questions in the Wonder Bank

Top Nominated Wonder Questions:

  • +6949

    how was water created


  • +5744

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

    Lance Borden

  • +5111

    Can you mix water and air completly?

  • +58

    Why do Olympians bite their medals?

    Sam Hyman

  • +38

    How many animals are on earth?

    helaina quick

  • +35

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

    Terry Duff

Vote for wonder nominees

Explore the World of Wonders

Discover the latest Wonders from TECHNOLOGY: Christmas, Hanukkah, Kwanzaa, paraffin, wick, History, and more

Image #13

Who Invented the Candy Bar?

Do you like to go trick-or-treating at Halloween? Of course! Who doesn't? It's so much fun to dress up as a clown, a superhero, a ghoul, or a tiger and parade around the neighborhood, begging for swee...

Image #12

Who Came Up With Chewing Gum?

If you had a choice between chewing on a wad of tree sap, a mouthful of rubber bands or a stick of gum, which would you choose? If the answer seems obvious, you may be surprised. All three have more i...

Image #43

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...

Image #63

How Does the Internet Work?

The Internet is made up of computers all over the world. Each of these computers is connected by phone lines or cables…or even wireless connections!

Wonder Stream

Spread the Joy of Wonder

Wonderopolis Widget

Interested in sharing Wonderopolis® every day? Want to add a little wonder to your website? Help spread the wonder of families learning together.

Add widget

Wonderopolis Partners & Sponsors


Spread the Joy of Wonder

Wonderopolis Widget

Interested in sharing Wonderopolis® every day? Want to add a little wonder to your website? Help spread the wonder of families learning together.

Add widget