Question about internships (High School)

<p>I'm a junior, and starting to figure out all my experience, volunteer hours, etc. for college apps. In September and October I participated in an unpaid internship with the coordinated campaign for several local candidates. I worked about 100 hours, and I was just wondering whether to put this under "Volunteer work" or "Work experience." If it's more work experience, does it not count as volunteering at all? Thanks :)</p>