The teaching of science at Beirut Arab University began in 1976. At that time, there was only one major, which was Physics. In 1978, Mathematics teaching started, followed ten years later by establishing a Chemistry major. It was not until 1996 and 1998 that the Computer Science and Biology majors were established, respectively.
In line with its growth policy, and to accommodate the increasing number of students, the Faculty moved to Debbieh Campus in 2008, located in the beautiful Shouf Mountains overlooking the Mediterranean. The Faculty now occupies two complexes, one housing the laboratories, and offices and the other housing lecture halls, offices and the library. New state of the art facilities that support the Faculty's research include:
- New undergraduate laboratories (Zoology, Botany, Ecology & Histology, Microbiology, Molecular Biology, Biochemistry, Organic, Analytical & Physical Chemistry, and Physics)
- Lecture rooms with the latest technology of audio-visual teaching facilities
- New computer laboratories
- An expanded science library
In addition to the range of core specializations offered by the Faculty's four departments, innovative interdisciplinary programs are available such as studies in Microbiology, Biochemistry, Molecular Biology, Biotechnology, Environmental Science and Computer Science.