Blood is a special liquid in our bodies that does a lot of important things. It carries oxygen from our lungs to all parts of the body and takes away waste like carbon dioxide. Blood also helps protect us by fighting off germs and stops us from bleeding too much when we get a cut.
Inside blood, there are red blood cells that carry oxygen, white blood cells that fight germs, and platelets that help our blood clot. All these things float in a liquid called plasma.
Our heart pumps blood through our bodies, making sure everything gets what it needs to stay healthy.
What is the primary function of red blood cells?
Which component of blood is responsible for clotting?
What is the liquid portion of blood called?
How do white blood cells help the body fight infections?
What protein in red blood cells binds to oxygen?
What are the four main components of blood?