Bachelor of Science, or B.Sc, is a three-year full time course Bachelor of Science (B.Sc) is an undergraduate degree course . It is one of the most popular course choices among Science students after Class 12th. Full form of B.Sc is Bachelor of Science . The course is most apt for students who have a strong interest and background in Science and Mathematics. The course is also beneficial for students who wish to pursue multi and inter-disciplinary science careers in future.