This term, we have been learning about the circulatory system in Science. We looked at the role of the heart in pumping blood around the body and identifying the different parts of the heart. To help us with our studies, Mr Gunnoo taught a lesson on heart dissection. In groups, we used scissors to cut open a sheep's heart to find the left/right atrium and the left/right ventricle. We noticed how the muscle was much thicker on the left side. This is because the left ventricle has to contract to move blood throughout the whole body, so it has to have more muscle than the right, which brings blood a short distance to the lungs.