A visit to a factory is an interesting experience. Take, for example, a biscuit factory. The whole process of biscuit-making is done by machinery. First of all, the ingredients such as flour, sugar, fat and water are put into a mixing machine. The mixture comes out in the form of dough and is passed on to a machine that presses it into moulds. In these moulda, the dough is given the shape of biscuits. Then the biscuits are taken on the conveyor belt to the oven. As they move through the oven, they are slowly baked. When they are cool, they are taken off the moving belt by workers and packed into boxes. The boxes are weighed, made airtight and wrapped. Then they are ready to leave the factory.