5,6 B went straight out into the very British drizzle this morning to complete some fieldwork. As part of topic, the children have been learning that trees store large amounts of carbon from the atmosphere. They are able to calculate how much carbon is stored in each tree by measuring the girth of the trunk – the distance around the tree trunk. The children measured a sample of trees using string and metre rulers and recorded their results. Back at school, the children will calculate the estimated carbon store once back at school.