On Tuesday Finn's Mum, Gwen came in to give us a very interesting talk about the metabolic energy system. She explained to us that the human body is like a machine and that we have to fuel the machine properly. She also explained that we need different types of nutrition for different types and lengths of physical activity and these can be categorised into 3 main areas. She also spoke to us about hydration and how water is the best thing we can drink. The talk was very beneficial for the class and we will use a lot of what we learned as part of young scientist project.