For the Aims, is it better to do something short like: 'My aim was to investigate how the discharge and the cross-sectional area of the River Penberth change with the distance from the source.' Or to expand it to, 'My aim was to investigate how the discharge and the cross-sectional area of the River Penberth change with the distance from the source. I want to compare my results to the Bradshaw Model which suggest that they should increase with distance from the source. If my results do not fit this model, I wish to discover the reasoning behind this.'?