CHANGE OF METHOD =D

So to more suit the.... conditions of my experiment and where I am performing, I've changed the method a little:

This experiment was conducted using three different balloons of equal proportion, colour, and materials. Each balloon was pumped with a balloon pump until it was approximately 58 centimetres in diameter (the balloons did not all have to be exactly 58 cm, as only the difference in the diameters were being calculated). The first balloon was placed in a heated room at 65°C. The second balloon was placed in a freezer at -22°C. The third balloon was placed in room temperature conditions (approximately 18°C, as this experiment was performed in winter). The balloons were then left in their respective places for three hours. However, measurements of each of the balloon’s diameters were recorded at half hour intervals.