The Heart Our Circulatory System

Title: The Heart Our Circulatory System

Author: Seymour Simon

Genre: Informational Nonfiction

Grade level: 3-7

Teacher evaluation: This is a great book to be used in a science classroom. It is very informative with a lot of images to help explain what is happening. It really helps that the information is very detailed with easy words that can be used for any grade level. 

Summary: The beginning of the book tells us how hard a heart works and how it pumps our blood around our body. Your heart has all different parts of it that do different things to help keep you alive. there is a valve, different atriums, ventricles and arteries that do all different things. Your blood is made up of blood cells white and red. you also have plasma that has proteins minerals and sugars that we need. It tells us all about red blood cells and how common they are. The muscles in the heart squeeze to pump the blood. blood flows at all different speeds to all different places in the body. The red blood cells are much more common then white blood cells, and they are smaller than white blood cells as well. Scientists are now looking for new ways to help people with a blocked heart. 

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