This term Year 8 students have started their unit on the Human Body looking at the Digestive, Circulatory, Respiratory and Reproductive systems. We have done practical experiments with food testing (sugars, starches, lipids and proteins) and lung capacity. The assessment for this unit will be to design an elite athlete – what physical characteristics enhance performance at an elite level? For example, a large heart will allow a greater volume of blood to collect oxygen for respiration and therefor a greater ability to produce energy. Some athletes do high-altitude training, which adapts the body to a low oxygen atmosphere. When they return to near sea-level, they can better utilize oxygen in the air.