General Knowledge
Fact or Cap: Science Edition Quiz
Are these wild science facts real or total cap? 50 mind-blowing claims to test your BS detector.
Are these wild science facts real or total cap? 50 mind-blowing claims to test your BS detector.
The Mpemba effect — where hot water can freeze faster than cold water — has been experimentally verified but physicists still can't fully explain why. Science is full of claims that sound completely made up but turn out to be true, and "facts" that everyone believes but are totally wrong. This quiz puts 50 of the wildest science claims to the test. Can you tell which ones are legit and which are pure cap?
Each round presents 10 randomized questions from a pool of 50, with four multiple-choice options and instant feedback after every answer. Your final score comes with a performance tier and shareable results.
You'll discover which mind-blowing science claims are actually true, bust popular myths you've believed your whole life, and learn the surprising real explanations behind phenomena like the Mpemba effect, DNA similarities between humans and bananas, and why we have more trees on Earth than stars in the Milky Way.
Yes, this is known as the Mpemba effect and has been demonstrated in multiple experiments. Under certain conditions, hot water can indeed freeze faster than cold water, though the exact mechanism is still debated among physicists.
Humans share about 60% of their DNA with bananas. This is because all living organisms share fundamental genes for basic cellular functions that date back to a common ancestor billions of years ago.
Some of the most widespread science myths include the idea that we only use 10% of our brains, that lightning never strikes the same place twice, that goldfish have 3-second memories, that cracking your knuckles causes arthritis, and that the tongue has specific taste zones. All of these have been debunked by scientific research.
Last updated: March 2026