Color & Vision Test
Find out now if you are one of the over 300 million people in the world that are color blind. Our incredible Color & Vision Test will assess how sensitive your eyes are to color and let you know if you're color blind. We’ve got some super fun yet challenging pictures to test your eyesight. Are you ready? Let's get started!
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Continue to play the quiz afterwardsFact Lab
With the sun burning 600 million tons of Hydrogen every second, you’d think it’d run out pretty fast. But no worries. There’s enough Hydrogen there to keep it burning for another 5 billion years!
Do you know where the word “scissor” comes from? Gladiators! It was originally a type of Roman gladiator armed with either a pair of swords or blades or – more eccentrically – a single dual-bladed dagger.
This one is a bit nuts: If you wrote out every single number in order, you’d never use the letter “b” until you reached, you guessed it, the word “billion.” That means that there isn’t a single “b” in the first 2,999,999,999,999 numbers in English!