In some cases you will encounter a scholarly article in the context of its larger journal (e.g., the article is from the Journal of Such and Such). However, you may come across a document without any context and need to determine whether it is scholarly or not.
As you read through an article, there are some things to look for to identify an article as scholarly:
These different sections will normally have headings to indicate them (e.g., Literature Review).
One thing that you will probably notice immediately is that a scholarly article is written in the language of that academic discipline. The intended primary audience for any scholarly article is other scholars in that discipline--other experts who use and write in a shared language that might not be familiar to the average reader. In other words, you are probably not going to read a scholarly article to pass the time while riding in the car. . .
Popular publications have some fairly obvious indicators that differentiate them from scholarly publications: