Minors offer you a way to explore a department or interdisciplinary theme with less commitment of time than a major. Where a major requires at least 50 credits, most minors require 25 to 35 credits.
Minors are optional.
You may complete one or more, or none at all. You may choose to complete a minor related to your major. For example, if you major in chemistry you will already have a head start on a math minor, because the chemistry B.S. degree requires 21 credits of math. Or you may choose to minor in a subject unrelated to your major. For example, if you major in chemistry but are fascinated by the theatre, you might decide to minor in drama.