This easy to read, one page passage about the circulatory or cardiovascular system explains:the parts of the human circulatory system including: red and white blood cells, platelets, plasma, heart, veins, arteries, aorta, and valveshow they are used to pump blood carrying nutrients and oxygen around the bodyThe passage includes 10 multiple choice reading comprehension questions, an answer key, and 2 self-scoring digital versions - EASEL and Google Forms. Color and black line illustrations are in