What most naturally follows?

How to write up a science experiment
Start with an abstract.
The abstract is a very short summary of the paper, usually no more than 200 words. This will allow the reader to see in short form what the results of the experiment were and its significance.
The purpose of this short summary is to provide the reader with enough information on the experiment, so they can see if they want or need to read the entire report. One of the first things researchers do is to do a quick search of similar research projects.