Bachelor's Degrees | College of Science | SIU

Southern Illinois University



Bachelor's Degrees

Bachelor's Degrees

Biological Sciences

This major includes specializations that prepare students for careers in Biology Education (secondary school teaching), Biomedical Science (including pre-health professions), and Ecology (interdisciplinary community and ecosystem studies). 

Chemistry and Biochemistry

The Department of Chemistry and Biochemistry offers two degree options at the undergraduate level. If you intend to be a professional chemist or go on to graduate school you should choose the bachelor of science degree. With this degree you can receive American Chemical Society Certification.  The bachelors of arts degree is designed primarily for students who wish to complete a major in chemistry but will specialize in areas related to it. Students complete a group of core courses, along with additional courses that will lead to a specialization in biochemistry, business, environmental, or forensic chemistry

Computer Science

The Department of Computer Science offers two degree programs to undergraduate students - the Bachelor of Science and the Bachelor of Arts. The Bachelor of Science degree in Computer Science is accredited by the Computing Accreditation Commission (CAC) of the Accreditation Board for Engineering and Technology  (ABET). The curriculum specified for the Bachelor of Science degree is more traditional and somewhat more flexible in that it prepares the student for a wide range of careers as well as for graduate degree programs in computer science. The Bachelor of Arts degree program is more specifically oriented toward the area of business applications and, in particular, is designed to enable students to pursue a fifth year of studies leading to an MBA degree.


For those that want to study what’s shaped the world and have big aspirations for the planet, the Geology Department offers a Bachelor of Science with a curriculum designed for those who intend to pursue careers as geologists or who plan to go on to study geology in graduate, or a Bachelor of Arts degree that's more flexible and lets you shape the world with your other areas of interest, such as law, engineering, biology, business, or teaching.


A Bachelor of Science degree in the College of Science can provide the foundation for a career in education, industry, the actuarial profession, government, business or for graduate study followed by an academic career in mathematics research and college teaching. The mathematics component of the Bachelor of Arts degree in the College of Liberal Arts is identical to the College of Science program. Majors also take a secondary concentration consisting of two or three approved courses in some field in which mathematics is applicable.


The Bachelor of Science degree in Microbiology, the ONLY program in Illinois, prepares students for careers in the medical, academic, industrial, pharmaceutical, and governmental sectors. With a low student-to-faculty ratio, microbiology majors at SIUC benefit from personal attention from faculty who are actively engaged in research and who bring the excitement of their work directly into the classroom. The Bachelor’s degree also provides excellent preparation for graduate or professional degree programs.


If you’re a student just starting out with an interest in Physics, we encourage you to get your feet wet in the field by trying a class and looking at our four undergraduate degree specializations in  General Physics, Material Science / Nanophysics, Computational Physics, and Biomedical Physics.  BS degrees in physics provide excellent opportunities for high-paying jobs with very low unemployment rates.  (See American Institute of Physics research.) 

Plant Biology

The undergraduate program in Plant Biology offers a flexible curriculum with two degree options (Bachelor of Arts or Bachelor of Science) and the opportunity to specialize either degree in Ecology, Cellular and Molecular Physiology, or Systematics and Conservation Biology.  Undergraduate students can become involved in a variety of research and/or work experiences to add practical training to their undergraduate education. 


The Department of Zoology offers Bachelor of Arts and Bachelor of Science degrees for students pursuing careers involving wild animals.  The B.A. degree is for students with zoology-related interests in non-science careers such as environmental policy, law,  law enforcement, photography, zoo keeping, journalism, etc.  The B.S. degree is for students wishing to specialize in animal biology (preparation for graduate study in traditional zoology disciplines), environmental biology, fisheries biology, pre-veterinary science, and wildlife biology.


Physiology seeks to understand biological function spanning the range from molecular mechanisms to medical problems. The discipline of physiology is uniquely positioned among the biomedical sciences to span the gulf between exploring the most fundamental aspects of biology and the most practical and applied problems of human and animal health.