3 programs, side by side

+ Add a program	Western Computer Science OUAC ECS ☆ Add to planRemove	Ottawa Biotechnology (Biochemistry and Chemical Engineering) (5-year double degree) (French Immersion Stream is available) OUAC OSY ☆ Add to planRemove	Western Science OUAC ES ☆ Add to planRemove
Your average, their wayrequired courses forced in
Published rangetheir exact wording	80–87%“Low to mid 80s”	80%	80–87%“Low to mid 80s”
Required coursesforced into your top 6 — options are the row below	ENG4UMCV4UMHF4U	MCV4UMHF4U	ENG4UMCV4U
Choose one ofany of these satisfies it	one of ICS4U, MDM4U, SBI4U, SES4U, SPH4U	one of ENG4U, FRA4U two of SBI4U, SCH4U, SES4U, SPH4U	two of ICS4U, MDM4U, MHF4U, SBI4U, SES4U, SPH4U
Prerequisitesas published	English, ENG4U Calculus and Vectors MCV4U Advanced Functions, MHF4U One of: Biology, SBI4U +5 more on the program page	ENG4U or FRA4U MHF4U MCV4U 2 of SBI4U, SCH4U, SPH4U, SES4U A combined minimum average of 70% is required for all prerequisites in science and mathematics. +4 more on the program page	English, ENG4U Calculus and Vectors MCV4U Two of: Advanced Functions, MHF4U Biology, SBI4U +7 more on the program page
More than marks?supplementary application	Marks only	Marks only	Yes Unless otherwise noted, required courses must be completed with a minimum average of 70%. Western Integrated Science applicants must submit a supplementary application. More information Usually closes before January 15
Co-op	Available	Available	Available
Degree	—	Bachelor of Science (Co-op), BSc (Co-op), Bachelor of Science/Bachelor of Applied Science, BSc/BASc	—
First-year intakewhere published	500	31	550
What you study	Computer GamesInformation ServicesSoftware Engineering	BiotechnologyChemical EngineeringChemistryGenetics	Animal ScienceAstronomyBiological SciencesChemistry
What it is	Computer Science at Western teaches you how to write programs, build software systems, and solve problems using computers and code. You choose a focus — such as game development, managing information systems, or engineering robust software — based on your interests. The program includes paid work terms alongside your studies, letting you apply classroom learning in real jobs and build professional experience before you graduate.	You study how chemicals and biological systems work together to solve real-world problems, learning biochemistry and chemical engineering side by side over five years. This dual degree goes deeper than choosing one field: you gain skills in both the science of living systems and the design of industrial processes. It suits people who want flexibility to work in pharmaceuticals, biotechnology, or chemical manufacturing, and who value alternating study terms with paid work placements through co-op.	This is a broad science degree where you choose from fields like biology, chemistry, physics, computer science, geology, and others. You take foundational science courses in first year, then specialize by selecting which science subjects to focus on. Co-op is available, letting you do paid work terms at science-related employers alongside your studies.
The door tomajors you reach through it	computer science	Applied to directly	biologychemistryearth scienceenvironmental sciencelife sciencesmathematicsphysicsstatistics
Entrance awardsat this campus, by average	6 published, 5 with no applicationfrom 85%See them	22 published, 5 with no applicationfrom 75%See them	6 published, 5 with no applicationfrom 85%See them
Source	Western University on OUInfo	University of Ottawa on OUInfo	Western University on OUInfo

Ranges are what each university publishes, not guaranteed cutoffs, and limited-enrolment programs often admit above them. Confirm anything you are about to act on with the university; each column links to its source.