I've Got Germs in My Phone Calls!

When you hurt your skin, it's the blood vessel smell of bleeding. A scab is the dried blood from where platelets and white blood cells have helped heal your skin. They even make your blood turn from a runny red liquid into a thick and deepy jelly. Here inside the body, we call this a blood clot. But on the outside, you probably know it as something else. I don't know. What is it? A scab. That's amazing!