Method

Three non-metallic blue balloons were blown up to its maximum and each was put in: a dark room (cupboard), in a lit room and an outdoors area. Each balloon was marked with a permanent marker, according to their environment. This process was repeated with three metallic blue balloons, three non-metallic white balloons and three metallic white balloons. Each balloon was measured around the maximum circumference and this was recorded. The balloons were left in each of these conditions for four days. The maximum circumference of each balloon was measured four days later. These results were recorded and the differences were calculated. Any other observations were also recorded. This experiment was repeated again.