New Era - Frequently Asked Questions for Kids

Children often ask why blood is red and not yellow, green, or blue.

The answer to this question is provided by Dr.Christian Jessan, a medical doctor. Let's take a look. Kids....

In storybooks, we see that the blood of kings and queens in the palace is not red like yours, but blue. It's scary. But the blood is not red, but blue, because it's in the story. Outside, all blood is red, no matter what.

But do you see the blood vessels under the skin that are green? In that case, you think that blood is green in your mind. But whether it is a slip or a cut on your hand, the blood is red when it comes out. You may wonder why such red blood looks green from the outside. You may ask adults. The reason is that your blood vessels are attached to your skin. Skin is not like a mirror that can transmit light. If you put something in a mirror, it looks red, and if it is green, it looks green. But the skin is not like a mirror because light cannot penetrate it well, so you cannot see it at all. You can only see the color of the light that can pass through it. That is why you think that the blood vessels under the skin are green.