Seymour Simon explains how our heart works and shows detail picture of parts of our heart. He also explains how the blood in our body and ours cell have to do a lot with our hearts, and the parts they play in our circulatory system. It’s amazing how our heart does so much for us.
Excerpt: Make a fist. This about the size of your heart. Sixty to one hundred times every minutes your heart muscles squeeze together and push blood around your body through tubes called blood vessels. Try squeezing a rubber ball with your hand. Squeeze it hard once a second. Your hand will get tired in minute or two. Yet your heart beats more than thirty million times. In an average lifetime a heart will beat over 2,000,000,000 (two thousand million) times. The heart works hard when we relax or sleep and even harder when we work or exercise. It never stops for rest or repair. The heart is a most incredible pump.
CUNY HSE Science Club 
I liked the book called The Heart.It was interesting reading about your heart and how it works.I learned that not all animals have hearts and while your resting the heart beats faster.In an average lifetime a heart will beat over 2,000,000,000 (two billion) times.The book is a easy and fast reading.It’s always good to read books based on the important things in your body.
I enjoyed this book about The Heart because I learned not all animals have hearts.The heart works hard when we relax or sleep and even harder when we work or exercise. It never stops for rest or repair. Also I found out the human body is made up of hunderds of billions of microscopic cells. This book is very interesting to read because I never knew our bodies carry so many different cells. The book is very easy to read and you can learn different things about your heart.
I liked the book The Heart because it was very interesting. I want to work in the medical field so reading about the heart and how it works and how important it is very interesting to me. Did you know that our hearts are not on the left side of our bodies? It is actually in the middle of our chest cavity slightly tilted to the left just a little. It also weighs 10 ounces, almost the same amount as one of our sneakers. This book teaches us a lot about the heart and how it works. This book was really easy to read.