Scientific method

My understanding of the scientific method is that you first form a question, like why are rocks in the middle of a river rounder than the ones closer to the shore. I would go find a river and carefully examine them to see if indeed, rocks in the middle are smoother. I would then form my hypothesis that the rocks in the middle are rounder and smoother. I would test my hypothesis to see if it was correct. If it was, my hypothesis would prove that rocks in the middle of the river were smoother ad more round because of the water flowing over them constantly.