It should contain a brief, concise statement of the conclusion that is in direct response to the research question or hypothesis. The abstract is judged on the clarity with which it presents an overview of the research and the essay, not on the quality of the research question itself, nor on the quality of the argument or the conclusions.
Ask a teacher that you have experience with through class or an extracurricular activity. Consider all of your options first before you do. Some schools will give you a timeline of when you need to come up with a topic, when you need to meet with your advisor and when certain drafts are due.
Although each criterion has a point value, IB explicitly states that graders are not converting point totals into grades; instead, they use qualitative grade descriptors to determine the final grade of your EE.
This post will show you what the rubric is asking for and how to show these things in your writing. The key here is that the comparison needs to be significant.
I genuinely think my Extended Essay helped me get my scholarship. Second, it must allow for critical argument, and not simply require a descriptive or narrative treatment.
Careful attention should be given to the design of experiments to include use of, for example, quantification, controls, replication and random sampling, where appropriate.
If they have a lot of suggestions for improvement, ask if they will read one more draft before the final draft.