3 programs, side by side

+ Add a program	Ottawa Computer Science and Mathematics (Joint Honours – 4 years) (French Immersion Stream is available) OUAC ORA ☆ Add to planRemove	Western Science OUAC ES ☆ Add to planRemove	Carleton Science – Honours (4 years) OUAC CT ☆ Add to planRemove
Your average, their wayrequired courses forced in
Published rangetheir exact wording	80%	80–87%“Low to mid 80s”	78%
Required coursesforced into your top 6 — options are the row below	MCV4UMHF4U	ENG4UMCV4U	No course codes parsed — see prerequisites
Choose one ofany of these satisfies it	one of ENG4U, FRA4U	two of ICS4U, MDM4U, MHF4U, SBI4U, SES4U, SPH4U	—
Prerequisitesas published	ENG4U or FRA4U MHF4U MCV4U A combined minimum average of 70% is required for all prerequisite courses in mathematics. Meeting these minimum requirements does not guarantee admission.	English, ENG4U Calculus and Vectors MCV4U Two of: Advanced Functions, MHF4U Biology, SBI4U +7 more on the program page	Honours in Biochemistry, Bioinformatics, Biology, Biotechnology, Chemistry, Linguistics, Neuroscience and Mental Health, Psycholinguistics and Communications Differences, Psychology, and Gateway (Physical Sciences and Life Sciences): Advanced Functions (MHF4U) Two credits from Biology (SBI4U), Chemistry (SCH4U), Earth and Space Science (SES4U), or Physics (SPH4U) 3 best 4U/M courses +7 more on the program page
More than marks?supplementary application	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	Marks only
Co-op	Available	Available	Available
Degree	Bachelor of Science, BSc, Bachelor of Science (Co-op), BSc (Co-op)	—	—
First-year intakewhere published	—	550	—
What you study	Computer ScienceGeneral or Integrated EngineeringInformation TechnologyInterdisciplinary Studies	Animal ScienceAstronomyBiological SciencesChemistry	Audiology and Speech Language PathologyBiotechnologyChemistryEnvironmental Studies
What it is	You study computer science and mathematics together as equally important subjects, rather than taking one as your main focus. This joint honours program lets you combine theoretical math with practical computing skills in ways a single-subject program cannot. It suits students who enjoy both fields and want to understand how mathematics powers computational problem-solving.	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.	This is a four-year science degree where you specialize in one of many fields — from chemistry and physics to biology, geology, audiology, linguistics, or environmental science. The honours designation means you go deeper into your chosen subject than a general science degree would. The program includes optional co-op work terms, letting you gain paid professional experience alongside your studies, which suits students who want both classroom learning and real workplace practice in their field.
The door tomajors you reach through it	Applied to directly	biologychemistryearth scienceenvironmental sciencelife sciencesmathematicsphysicsstatistics	biochemistrybiologychemistryearth scienceenvironmental sciencelife sciencesneurosciencephysics
Entrance awardsat this campus, by average	22 published, 5 with no applicationfrom 75%See them	6 published, 5 with no applicationfrom 85%See them	16 published, 9 with no applicationfrom 75%See them
Source	University of Ottawa on OUInfo	Western University on OUInfo	Carleton 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.