Why is blood blue but red when I bleed?
Blood is always red when you bleed. However, it appears to be blue when it is seen through the skin. You can get some more information about this from your physician.
the blood is blue when it comes in contact with the air it goes through a chemical change and turns red i think that is wht i hav been told
oxygen turns it red
Blood is NEVER blue. It is ALWAYS red. That's a scientific fact, no matter what your third grade teacher told you.