Is this science fact true or false? Test your scientific knowledge!
Free to playNo sign-upStart below ↓
Science True or False
1 / 20True or False?
Light travels faster than sound.
About Science True or False
Is this science fact true or false? Test your scientific knowledge! Science True or False gives you 20 true-or-false statements to work through, completely free and with no account needed. Take it slowly or breeze through — either way, finishing a game once a day keeps your streak alive.
A few sample statements
1. Light travels faster than sound.
Answer: True
2. Water boils at 100 degrees Celsius at sea level.
Answer: True
3. Humans use only 10% of their brain.
Answer: False
Frequently asked questions
Do I need to be fast or sign in to play Science True or False?
No. There's no timer rushing you and no account required. Science True or False uses large, high-contrast text and works on phones, tablets, and computers, so you can play comfortably at your own pace.
What's a good follow-up after Science True or False?
If you enjoyed Science True or False, try the Daily Challenge — five rotating questions refreshed every 24 hours that count toward your streak — or explore more general knowledge for a similar style of game.
Can I replay Science True or False?
Absolutely. Science True or False can be replayed as many times as you like at no cost. Your overall progress — XP, streaks, and badges — is saved automatically in your browser.
Is Science True or False free to play?
Yes. Science True or False — like every game on SeniorBrainGames — is completely free, with no sign-up, no time limits, and no ads on top of the game. It also works offline once the page has loaded.
Explore related topics
More General Knowledge
True or False
Test your knowledge — is this statement true or false?
Science & Inventions
Discover how much you know about famous inventions, scientific discoveries, and the brilliant minds behind them.
Baking Science
Discover the science behind your favorite baked goods!
Chocolate History & Science
Discover the sweet history and science behind chocolate!
Climate Science
Understand the science behind climate, greenhouse gases, and Earth's changing atmosphere
Try Word Games
Grammar True or False
Is this sentence grammatically correct? Test your grammar knowledge!
Try Memory Games
Memory True or False
Test what you know about the brain, memory, and psychology!
Free printables
Printable Sudoku
Large-print sudoku sheets to print at home — with answers.