Can You Work as Hard as a Heart?
Mrs. Matteson’s first grade class is learning about the human body. While learning about the circulatory system they learned that the heart pumps 1.3 gallons of blood every minute. Could they "pump" 1.3
gallons of water in one
minute? No, no they
could not, but we had
fun trying!
Posted: Saturday, November 10, 2018