A Bachelor of Science (Latin Baccalaureus Scientiae, B.S., BS, B.Sc., or BSc; or, less commonly, S.B., SB, or Sc.B., from the equivalent Latin Scientiae Baccalaureus) is an undergraduate academic degree awarded for completed courses that generally last three to five years.
Whether a student of a particular subject is awarded a Bachelor of Science degree or a Bachelor of Arts degree can vary between universities. For example, an economics degree may be given as a Bachelor of Arts (B.A.) by one university but as a B.Sc. by another, and some universities offer the choice of either. Some liberal arts colleges in the United States offer only the BA, even in the natural sciences, while some universities offer only the BS even in non-science fields. Georgetown University's School of Foreign Service awards Bachelor of Science in Foreign Service degrees to all of its undergraduates, although many major in humanities-oriented fields such as international history and culture and politics. The London School of Economics offers B.Sc. degrees in practically all subject areas, even those normally associated with arts degrees, while the Oxbridge universities almost exclusively award arts qualifications. In both instances, there are historical and traditional reasons. Northwestern University's School of Communication grants B.Sc. degrees in all of its programs of study, including theater, dance, and radio/television/film. University of California, Berkeley grants B.S. degree in Environmental Economics and Policy in College of Natural Resources (CNR), and B.A. degree in Environmental Economics and Policy in College of Letters and Science (L&S).
The first university to admit a student to the degree of Bachelor of Science was the University of London in 1860. Prior to this, science subjects were included in the B.A. bracket, notably in the cases of mathematics, physics, physiology and botany.
Argentina and Chile
In Argentina and Chile, most university degrees are given as a license in a field or discipline. All degrees are specific to a field and are usually 5–6 year programs including a 1 to 1.5-year mandatory professional training period, which may start only after students have completed 70-80% of the courses required, (usually at the start of the fifth year). For instance, besides the courses, biochemistry (5 years) and biology (6 years) require 1–2 years hands-on training either in a clinical laboratory plus a final exam (for biochemistry) or in a research laboratory plus a thesis defense (biology). The degrees are term licenses in the field of study or profession i.e., biology, nutrition, physical therapy or kinesiology, etc. However, a master's degree requires 2-3 more years of specific training and or courses plus a written thesis with defense in front of a thesis committee. In Chile is usual that students from biochemistry or other biological sciences careers, work 1,2 or even more years in their thesis to obtain their professional titles, giving a total of 6,7 or more years of studies (without a master's degree).
Engineering and medical degrees are also different and are six year programs of specific classes and training starting immediately after high school. No intermediate degrees count towards the admission examination or even exist (except for systems analysts in information systems engineering). Medical degrees are complemented with a 3–4 years of hospital residence plus 1–2 years of specialization training.
Australia, New Zealand and South Africa
In Australia, the B.Sc. is generally a three-four year degree. An honours year or a Master of Science (M.Sc.) is required to progress on to the Doctor of Philosophy (Ph.D.). In New Zealand, in some cases the honours degree comprises an additional postgraduate qualification. In other cases, students with strong performance in their second or third year, are invited to extend their degree to an additional year, with a focus on research, granting access to doctoral programs. In South Africa, the B.Sc. is taken over three years, while the postgraduate B.Sc. (Hons) entails an additional year of study. Admission to the honours degree is on the basis of a sufficiently high average in the B.Sc. major; an honours degree is required for M.Sc. level study; and admission to a doctorate is via the M.Sc.
Britain and Ireland
Commonly in British Commonwealth countries and Ireland graduands are admitted to the degree of Bachelor of Science after having completed a programme in one or more of the sciences. These programmes may take different lengths of time to complete. Note that in British English, no full stops are used in the title, hence BSc, not B.Sc.
A Bachelor of Science receives the designation BSc or BS for a major/pass degree and BSc (Hons) or BS (Hons) for an honours degree. In England, Wales and Northern Ireland an honours degree is typically completed over a three-year period, though there are a few intensified two-year courses (with less vacation time). In Scotland, where access to university is possible after one less year of secondary education, degree courses have a foundation year (simply known as the First year) making the total course length four years. In Ireland the former BS. was changed to BSc (Hons) which is awarded after four years. The BSc (Ord) is awarded after three years. Formerly at the University of Oxford, the degree of BSc was a postgraduate degree; this former degree, still actively granted, has since been renamed MSc.
In Canada, Mexico & the United States, It is generally a four-year undergraduate degree typically used in engineering, computer science, mathematics, economics, and the natural sciences. Many universities are starting to offer accelerated 3-year B.S. programs.
Many universities in Europe are changing their systems into the BA/MA system, and in doing so also offering the full equivalent of a B.Sc. or M.Sc. See Bologna Process.
Universities in the Czech Republic are changing their systems into the Bachelor of Science / Master of Science system, and in doing so also offering the full equivalent of a B.Sc. (Bc.) or M.Sc. (Mgr./Ing.).
Germany and Austria
In Germany there are two kinds of universities: Universitäten and Fachhochschulen (which are also called University of Applied Sciences). Universitäten and Fachhochschulen – both also called Hochschulen - are legally equal, but Fachhochschulen have the reputation of being more related to practice and have no legal right to offer PhD programmes.
The BSc in Germany was equivalent to a BSc(Hons). Many universities in German-speaking countries are changing their systems to the BA/MA system, and in doing so also offering the full equivalent of a BSc.
In Germany the BA normally lasts between three and four years (six to eight semesters) and between 180 and 240 ECTS must be earned.
In Brazil, a Bachelor of Science degree is an undergraduate academic degree and is equivalent to a BSc (Hons). Could takes from 4 to 6 years (8 to 12 periods), is also more specific and could be applied for Scientific Arts courses (like Engineering, Maths, Physics, etc.), some what is calledHuman Art courses in Brazil (like History, Portuguese and Licterature and Lawyer studies for example) as well as for Health Arts (like Medicine, Nursery, Zootechnique, Veterinary and Biology for example). To be able to start the bachelor's degree in Brazil the candidate must to prove proficient in different disciplines and have at least the accumulated Preliminary, Medium and High School degrees accomplished with the minimum merit of 60% to 70% of the degrees and a correspondent study period that can vary from 10 to 12 years minimun. The Bachelor of Science courses in Brazilian Universities normally have the first 1 to 2 years (first 2 to 4 periods) of basics findamental disciplines (like for example Calculus I, II, III and IV for some engineering courses, Geometry basics and advanced, Analytical Laboratories experiments in Mechanics, Optics, Magnetism, etc.) and the last 2 to 3 years disciplines more related to the professional fields of that Bachelor of Science (for example Units Operations, Thermodynamics, Chemical Reactors, Industrial Processes Kinictics for Chemical Engineering for example). Some disciplines are prerequisite to others and in some universities the student is not allowed to course any discipline of the entire next period if he was unsuccessful in just one prerequisite discipline of the present period. Usually the Bachelor of Sciences courses demand a one-year mandatory probation period by the end of the course (interniship in the specific professional area, like a training period), followed by relatively elaborate written and oral evaluations. To get the certification as BSc most Universities require that the students achieve the accomplishment of 60% to 70% in all the "obligatory disciplines", plus the supervisioned and approved training period (like a supervisioned interniship period), the final thesis of the course and in some BSc. the final exam test. The final exam also is required so far. To be able to be a Professor, a Bachelor of Sciences is obligate to get a Licenciature degree, which lasts on top of the periods already studied until get the BSc. (Hons), more 2 to 3 periods (1 to 1.5 years). With a master's degree (MSc) is also possible, which takes 3 to 5 periods more (1.5 to 2.5 years more).
Typical completion period
Algeria, Australia, Austria, Barbados, Belgium, Belize, Bosnia and Herzegovina, Cameroon, Canada (especially Quebec), Cote d'Ivoire, Croatia (mostly three years, sometimes four), Czech Republic (mostly three years, sometimes four), Denmark, England (three or four years with a one-year placement in industry), Estonia, Finland, France, Germany (mostly three years, but can be up to four years), Hungary, Iceland, India (three years B.Sc. in pure sciences excluding engineering and medicine and four years engineering program "Bachelor of Engineering"), Ireland (Ordinary), Israel (for most subjects), Italy, Jamaica (three or four years), Latvia (three or four years), Lebanon (three or four years, five years for Bachelor of Engineering), Malaysia, New Zealand, Netherlands (three years for research universities, four years for universities of applied sciences), Northern Ireland, Norway, Poland, Portugal, Romania, Scotland (Ordinary), Singapore (honours degree takes 4 years), Slovakia, Slovenia, South Africa (honours degree takes 4 years), Sweden, Switzerland, Trinidad and Tobago, Uganda (mostly three years, sometimes four), United Arab Emirates, Wales and Zimbabwe.
Armenia (four or five years), Albania (four or five years), Afghanistan, Nepal (three or four years), Azerbaijan (four or five years), Australia (honours degree), Bangladesh (four or five years), Bahrain, Belarus, Belize, Brazil (four to five years), Brunei, Bosnia, Bulgaria, Canada (except Quebec), China, Cyprus, Egypt (four or five years), Ethiopia (engineering, five years), Finland (engineering, practice in industry not included), Georgia, Dominican Republic, Guatemala, Ghana (three or four years) Greece (four or five years), Haiti (three or four years), Hong Kong (starting from 2012, three years originally), India (four-year BS, Engineering), Indonesia, Iran (four or five years), Iran, Iraq, Ireland (Honours Degree), Israel, Japan, Jordan (four to five years), Kazakhstan, Kuwait, Lithuania, Libya, Malawi (four or five years), Malta, Macedonia (three, four or five years), Montenegro (three or four years), Mexico, Myanmar, the Netherlands (three years for research universities, four years for universities of applied sciences), New Zealand (honours degree), Nigeria, People's Republic of China, Pakistan (four or five years), the Philippines (four or five years), Puerto Rico, Romania, Russia, Saudi Arabia, Scotland (Honours Degree), Serbia (three or four years), Spain (in Spain a 2015 Royal Decree will allow 3-year BSc degrees to coexist with current 4-year ones. It will be in force starting September 2015. However most universities have agreed not to implement the new system until September 2017), South Africa (fourth year is elective — to obtain an Honours degree, which is normally a requirement for selection into a master's degree programme), South Korea, Sri Lanka (three four or five (specialised) years), Taiwan, Thailand, Turkey, Ukraine, United States, Uruguay,Yemen, Zambia (four or five years).
Romania (four or five years) (Bangladesh (four or five years), Cuba (five years), Greece (four or five years), Peru, Argentina, Colombia (Starting to change to 4 years), Venezuela, Brazil (five years), Mexico (4.5 years), Chile (usually 5 years where last year includes professional training, thesis and specialization courses), Egypt (four or five years), Haiti (four or five years).
Nigeria (four to five years), 6 months dedicated to SIWES (Students Industrial Work Exchange Scheme) but for most sciences and all engineering courses only. A semester for project work/thesis not excluding course work during the bachelor thesis. Excluding 1 year for the compulsory National Youth Service Corps (NYSC), para-military and civil service.
In Algeria, the student presents a thesis in front of a Jury at the end of the fifth year.
In Chile, most undergraduate majors such as engineering and geology require 6 years to complete whereas other BSc degrees may take as long as 10 years as a full-time student without any leaves of absence. It is very common for students to fail several classes during their undergraduate careers because of their harsh grading system and the highest grade of a typical class can be as low as 60% (C-). This issue was also a trigger of the 2011–13 Chilean student protests. There are studies that suggest a direct correlation between low social mobility and the unique university system that Chile experiences.