Have You Ever Wondered... What is a Rube Goldberg machine? Who was Rube Goldberg? Why are Rube Goldberg machines so fascinating?

Today’s Wonder of the Day was inspired by Addison. Addison Wonders, “ who invented porta potty's ” Thanks for WONDERing with us, Addison!

Today Wonderopolis is exploring the tradition of the quinceañera. Put on your party shoes and join us as we celebrate this very important sweet 15.

Today’s Wonder of the Day was inspired by Anna. Anna Wonders, “How do the claws of wolfs and bears retract and reatract” Thanks for WONDERing with us, Anna! If you’ve spent much time around cats of ...

Have You Ever Wondered... How does an air conditioner work? What are the basic parts of an air conditioner? What are the two most common refrigerants used today?

Today’s Wonder of the Day was inspired by tajveer. tajveer Wonders, “why don't plastic decompose why does it take that long” Thanks for WONDERing with us, tajveer! Why? Unlike organic materials, like ...

Today’s Wonder of the Day was inspired by Alexa. Alexa Wonders, “ How are wigs made? ” Thanks for WONDERing with us, Alexa!

Have You Ever Wondered... How do dryer sheets prevent static cling? What causes static cling? Can you make your own dryer sheets?

Who Was Grace Lee Boggs?W e learn in school about historic U.S. figures who fought for social and civil rights. Dr. Martin Luther King, Jr., Angela Davis, Malcolm X, and Rosa Parks were all famous for ...

What Is Circular Breathing?L et’s start today’s Wonder of the Day with a breathing exercise. Ready? Okay—if you can, breathe in through your nose as you count to four. Now, hold that breath in for ...

How Do We Wonder?C alling all Wonder fans—today’s Wonder is for you! If you’re here, you already know how much you can learn and how much fun you can have on Wonderopolis. But have you ever wonder ...

Have You Ever Wondered... Who was Elie Wiesel? To what historical event was Wiesel a witness? What is the title of Wiesel’s most famous book?