In understanding the world the children have been investigating natural materials. In Summer 1 they investigated compost both in its dry and its wet format. They watched how the compost transforms into a different texture when water is added. At the end of the term, they used pots and spades to plant cress seeds with their teacher. In summer 2 the children have been investigating sand. They watched how sand changes when water is added and made sand castles with their teacher.