What Is Blood Made Out Of?

Blood is super cool and what keeps you alive. Your blood carries some main ingredients that all of the tissues in your body need to survive. Blood also carries things that can help mend cuts and heal you. How do people have blood cells? Hi, my name is Molly. I live in a less-referencingment. What are blood cells? My name is Lachlan. I am six years old. And my question is, is blood made of chemicals?