The iron in your blood
There is a substance called iron in your blood. As you probably know, when iron is exposed to oxygen, it immediately starts to rust, which rust is red. Therefore, when the iron in your blood "rusts'' so to speak, it turns your blood red.
In the blood, their presence makes blood red.
Hemoglobin makes the red color.
oxygen makes blood red go read a science book
The protein hemoglobin, found in the red blood cells, is what makes blood red.
Red Blood...it's what makes your blood red.
Red Blood Cell
oxygen is what makes your blood red... you may not know this but when your blood is not seen it is blue
Blood is red because oxygen makes contact with it.
Your Blood
The mineral that makes red blood cells crimson red is iron. Iron is a key component of hemoglobin, the protein in red blood cells that binds to oxygen and gives them their red color.