Understand the answer
Read a short explanation of why it’s right.
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Play trivia duels with friends or the Computer.
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Science
World
History
Culture
TRY
THIS ONE.
Pick your answer, then find out why it’s right or wrong.
An object is moving. If the total force on it is zero, what happens next?
GET READY
FOR THE REMATCH.
Got a question wrong? Find out what you missed, try it again and give your friends a tougher match next time.
Revisit your mistakes
Practise the questions you missed in your matches.
Take on the Computer
Choose Easy, Medium or Hard and practise at your level.
PICK YOUR
CHARACTER.
Choose who you’ll play as in your next duel.
Use the points you earn in the game to unlock more characters.
The Professor
The Logician
BEFORE
YOU PLAY.
Do I need to download anything?
No. Uncle Why runs in your browser. Open the game on your phone, tablet, or computer and play.
Do I need an account?
Yes. Create an account with a nickname and password to save your progress and play with friends. An email address is not required.
Can I challenge my friends?
Yes. Add a friend with their friend code, then send them a duel challenge in the game.
Can I practise on my own?
Yes. Train against the Computer on Easy, Medium, or Hard. Computer practice does not earn ranking points.
Which languages can I play in?
English and French. Choose your language in the game before signing up, or change it later in settings.
YOURMOVE.
Challenge a friend or start with a practice match.
Play nowNo download. Play in your browser.