· just now. Report Abuse. There is a large difference between majors and minors. A major is definitely your main area of study and a minor is usually an associated field or something you enjoy on the side. You also take extra core for your major.For example, if you major in engineering, then you'll have extra math and physics in your core. major is definitely your main area of study and a minor is usually an associated field or something you enjoy on the side. You also take extra core for your major.