• Do red and yellow make you hungry?
  • What is the ketchup and mustard theory?
  • Why do so many fast food restaurants have red and yellow logos?
Find it out

According to some scientific studies, what is communicated to our brains faster than any other mode of communication?

Test your knowledge
  • Why is a boxing ring square?
  • Who was the first person to make up rules for boxing?
  • How long has boxing been around?
Find it out

The term “ring” is a holdover from when boxing contests were held on the ground inside a roughly-drawn what?

Test your knowledge
  • How do our eyes make us see?
  • What are the major parts of the eye?
  • What role does the brain play in sight?
Find it out

The electrical impulse that carries image information from the retina to the brain travels along the what?

Test your knowledge
  • Why do people use idioms?
  • What is an idiom?
  • Why are idioms sometimes confusing?
Find it out

Which of the following does NOT describe idioms?

Test your knowledge
  • What is evaporated milk?
  • How are evaporated and sweetened condensed milk different?
  • What types of recipes require evaporated milk?
Find it out

Evaporated milk is sometimes called what?

Test your knowledge
  • What is fool's gold?
  • Why is gold so valuable?
  • Does pyrite have any uses today?
Find it out

Which of the following is NOT a shape that pyrite crystals usually take?

Test your knowledge
  • How was the Slinky invented?
  • Who invented the Slinky?
  • Was the Slinky intended to be a toy?
Find it out

Soldiers used the Slinky as an antenna during which war?

Test your knowledge

Where are You Wondering?

Discover Wonder Hotspots nearby and join!

EXPLORE WONDER HOTSPOTS

Wonder with Olivia

Student Wonder Ambassador
TheLivBits

#WhatAboutUs

Wonder Buddy

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

#ForCharLOVE

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!

138,999

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

Latest from the Wonder Bank

  • Why does a dog chase shadows?
    Ellie Denton
  • what is minecraft?
    landon orsi
  • what is a dinosaur
    matt pierce
  • Can we evolve to breath under water
    Kitty Imnottelling
  • Is blue a primary color
    Allie Carmon
  • How do you make soap/when was soap invented/who invented soap
    Ethan Bolinger
  • Is milk in the category of meat or plants
    James Willmjam
  • Who invented paper?
    Kaylee Holyoak
  • what are plastic bottles made of ?
    Isabella thacker
  • Why do penguins live in the southern hemisphere?
    Maggie demopoulos
  • do dogs have 9 lives like cats
    Anna poop
  • why do dogs bark
    elsa yummy
  • Who came up with the idea of a purse?
    Zuri cardenas
  • how do boats float
    nolan friborg
  • if you drop soap on the ground clean or is the soap dirty?
    Giuliana Alvarez
  • Why do kids where uniforms
    Isabella Rivera
  • The biggest cargo ship
    STEPHEN MILLER
  • why do we need to get shots at the docters
    Cole smith
  • Why do cats love string so much?
    Abby Young
  • why is the sun the only star that i see in the day
    Damarcus Faye
  • What do people provide for this ? world?
    Jocelyn Rubio
  • how the world first stared
    ceonna jones
  • Where is chillys
    Bob Miller
  • whats the most common allergie
    olivia minogue
  • why do people text emojis
    peyton carnicle
  • why do people poop
    peyton carnicle
  • how do cars work
    ryan golembiewski
  • how old was Zach Eartz when he started
    maggie demopoulos
  • who made pocky
    Anthony Patrone
  • Who is Larry Bird?
    Molly Ratchford
View all questions in the Wonder Bank

Top Nominated Wonder Questions:

  • +5146

    how was water created

    Chiamaka

  • +3582

    Can you mix water and air completly?

  • +3458

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

    Lance Borden

  • +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

  • +34

    Why do we procrastinate?

    Evan

Vote for wonder nominees

Explore the World of Wonders

Discover the latest Wonders from SCIENCE: Colors, Food, Human Behavior, Science, Hungry, Hunger, and more

Image #17

Can You Garden in the City?

Over seven billion people call Earth home these days. Feeding all those hungry people is no small task. Fortunately, scientific advances have helped to modernize agriculture to the point where billion...

Image #1

Why Are Flamingos Pink?

We were hanging out on the Wonderopolis seashore the other day when we overheard an interesting conversation between a seagull and a pelican:

Image #3

Can Plants Eat Insects?

When you think of a jungle adventure, what comes to mind? Swinging around from tree to tree on vines? Gorgeous birds flying through the air? Monkeys and other exotic creatures prowling through the den...

Image #19

What Would You Pack For a Trip To Outer Space?

Have you ever dreamed of traveling in space? If you're like most kids, gazing at the stars at one time or another has led to a daydream about what it would be like to be an astronaut. Not only would i...

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