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Exercise and the body
What happens to your heart, lungs and muscles when you move, the different kinds of activity, how much activity children and teenagers need, and the physiology of cardiac output and muscle energy. Three ages, each with a text, an experiment, a game, a quiz, a printable worksheet and a teacher sheet.
Ages 6–7Move your body!Running, jumping, dancing and playing are good for your body and your brain. Find out what happens to your heart and your breathing when you move, then feel it for yourself.Ages 10–11What exercise does to your bodyPhysical activity makes your heart, lungs and muscles work harder. Learn the different kinds of activity, the talk test for effort, how much activity you need, and run a fair test on your pulse.Ages 15–16Exercise physiology: heart, muscles and energyCardiac output and how it changes in exercise, maximum heart rate, how muscles get ATP from creatine phosphate, glycolysis and aerobic respiration, lactic acid and oxygen debt, and what the evidence says about activity and health. With a heart-rate recovery investigation.