Earth science is an interdisciplinary, applied science that explains how Earth’s interior, surface, and atmospheric processes operate in interconnected ways with each other and with life on spatial scales from microscopic to global and on temporal scales from fractions of a second to millions of years. Thus, the Earth sciences must be approached in an interdisciplinary manner in both the classroom and the field. The B.A. in Earth sciences includes a set of core courses that provide students with the necessary background in geology, chemistry, and physics or biology. Specializations in geology, environmental studies, and unique student-designed concentrations established with faculty approval near completion of the core, are available. The B.A. in Earth sciences pairs well with majors and minors across the university and provides a strong science-based major for those in preprofessional programs.