We learned about how rocks are made by making our own chocolate rocks. First of all we added layers of dark, white and milk chocolate to a small glass lined with cling film. This showed us how a sedimentary rock is formed. We then took the choclate out and held it in our hands. This represented the heat and pressure that forms a metamorphic rock. Finally Mr Lawrence put the metemorphic rocks into hot water to melt the rock. It all got mixed together and formed a hard chocolate rock!