Answer: A conclusion, is the end results of a scientific study. something that was discovered due to the data collected. A scientific law, is proven factual evidence, like Newtons universal law of Gravitation, it has been proven time and time again, and is fact. Theory, is not yet proven fact, that does however have evidence and idea, but not fully supported, and is not yet dis-proven either. Hope this helps ^_^
(i also left it in the comments since there were no answer slots open at that time)