Length: 4-7 page body (title page, abstract, references, graphs, etc. do not count), which is a 6 page minimum if you count the separate Title and References pages.   

Sources: Five academic/peer reviewed/primary resources.  Wikipedia, dictionaries and encyclopedias are not primary and/or peer reviewed resources.

 Simply, tell the reader what the research says, and answer the question "So what?"–what conclusion should your audience draw, based on your research?