Without science, we’d still be living in caves. We wouldn’t know how to take care of a simple cold or how to travel to space. Test your science smarts with these 30 science facts that will blow your mind.
Each human is made of trillions of cells. In fact, it is estimated that there are 37.2 trillion cells in the human body. If you think that’s a lot, wait until you find out how many of those are actually bacterial cells.
According to a recent study, the human body contains just as many bacterial cells as human cells.But don’t worry, they aren’t bad. Many bacteria are actually beneficial to the body. In fact, not having the right amount of bacteria can lead to skin diseases, gum disease, or other health problems.
Blood vessels transport blood throughout the body. Did you know that if you lined up all the blood vessels in an average child, that line would be over 96,000 kilometres (60,000 miles) long? That’s more than twice the Earth’s circumference.