Every word has a story — and many of our English words come from ancient Greek and Latin roots. If you've ever wondered what "bio-" or "aqua-" really mean, this quiz is for you. It will test your ability to decode the building blocks of English, from science terms to everyday language. Some roots are obvious, while others are trickier than you think. Most people struggle to get even half right. So, if you think you're a true word nerd, let's see how well you know your roots.