School › Heart and lungs
The heart and lungs
Heartbeat and pulse, breathing and the diaphragm, the four chambers of the heart, gas exchange in the alveoli and cardiac output. Three ages, each with a text, an experiment, a game, a quiz, a printable worksheet and a teacher sheet.
Ages 6–7My heart and my lungsWhat the heart and lungs do, where they are, and why your heart beats faster when you run. With a feel-your-heartbeat experiment.Ages 10–11How breathing worksThe path of air into the lungs, the diaphragm, gas exchange, and the heart as a double pump. With a model-lung experiment.Ages 15–16Circulation, gas exchange and cardiac outputDouble circulation, the cardiac cycle, gas exchange at the alveoli and calculating cardiac output. With an exercise and recovery investigation.