3 programs, side by side

+ Add a program	Ontario Tech Computer Science (Co-op) OUAC DCD ☆ Add to planRemove	Guelph Bachelor of Science in Environmental Sciences (BS [Env]) (co-op option) OUAC GEA ☆ Add to planRemove	Western Science OUAC ES ☆ Add to planRemove
Your average, their wayrequired courses forced in
Published rangetheir exact wording	73–77%“Mid-70s”	75–80%“75 to 80%”	80–87%“Low to mid 80s”
Required coursesforced into your top 6 — options are the row below	ENG4UICS4UMHF4U	ENG4UMHF4USBI4USCH4USPH4U	ENG4UMCV4U
Choose one ofany of these satisfies it	one of MCV4U, SPH4U	—	two of ICS4U, MDM4U, MHF4U, SBI4U, SES4U, SPH4U
Prerequisitesas published	Six 4U/M credits, including English (ENG4U) Advanced Functions (MHF4U) One of Calculus and Vectors (MCV4U), Physics (SPH4U) or Computer Science (ICS4U). We recommend you take all 3 of these courses. A combined minimum 70% average in prerequisite computer science, math and science courses is required.	ENG4U MHF4U 2 4U Science courses 2 additional 4U/M courses Acceptable 4U science courses include Biology (SBI4U), Chemistry (SCH4U) and Physics (SPH4U. Completion of Biology and Chemistry is recommended.	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 and Management (Co-op), BSc&Mgt (Co-op)	—	—
First-year intakewhere published	140	—	550
What you study	ChemistryComputer Science	Biological SciencesChemistryEconomicsEnvironmental Studies	Animal ScienceAstronomyBiological SciencesChemistry
What it is	You study computer science — writing code, building software, and solving problems with computers — while working in paid job placements throughout your degree. The co-op requirement means you'll alternate between semesters of classes and semesters working at real companies, giving you professional experience alongside your education. The Management option adds business and organizational courses if you want to move toward leadership roles; the straight Computer Science path suits you if you want to focus purely on technical skills and software development.	Environmental sciences combines biology, chemistry, economics, and Earth systems to understand how environments work and how human activity affects them. The co-op option lets you alternate between study terms and paid work placements with environmental organizations, government agencies, or companies, giving you real experience alongside your degree. This program suits people who want practical skills in environmental problem-solving and prefer learning through both classroom study and workplace application.	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	Applied to directly	earth scienceenvironmental science	biologychemistryearth scienceenvironmental sciencelife sciencesmathematicsphysicsstatistics
Entrance awardsat this campus, by average	3 published, 3 with no applicationfrom 85%See them	12 published, 4 with no applicationfrom 75%See them	6 published, 5 with no applicationfrom 85%See them
Source	Ontario Tech University on OUInfo	University of Guelph 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.