Taking mechanical engineering undergrad core subjects

<p>Hi! I'm Pete. I'm an international student living in Columbus, OH. Does anyone know whether there's any college that allow students to specifically apply for some courses e.g. applied mechanics, materials, thermodynamics, fluid mechanics, etc. without applying for a bachelor degree? The thing is, I'm going to apply for a MS degree but I didn't have a BS mechanical, so I'd like to prepare myself with prerequisite subjects. Thanks.</p>