No extraneous information should be included. A successful abstract is compact, accurate and self-contained. It also must be clear enough so someone who is unfamiliar with your experiment could understand why you did what you did, and what the experiment indicated in the end. An additional note is that abstracts typically are written in the passive voice, but it is acceptable to use personal pronouns such as I or we. General questions to be addressed in the abstract section 1.
Science is an exploration for truth.
It is all about curiosity and answering questions to find out why and how things work. This section is the statement of the original problem. It is the reason behind why an experiment is being done. This should not include many details, rather it should be a simple statement. It can even be stated in one or two sentences at the most.