3 programs, side by side

Rows marked with a dot are where these differ. Everything is each university’s own published wording; the “your average” row is yours, calculated the way each program does it.

	Western Science OUAC ES Remove	Carleton Mathematics – Honours (4 years) OUAC CMA Remove	Guelph Bachelor of Science (BSc) General OUAC GZG Remove
Your average, their wayrequired courses forced in
Published rangetheir exact wording	80–87%“Low to mid 80s”	78%	80–85%“80 to 85%”
Required coursesforced into your top 6 — options are the row below	ENG4U MCV4U	MCV4U MHF4U	ENG4U
Choose one ofany of these satisfies it	two of ICS4U, MDM4U, MHF4U, SBI4U, SES4U, SPH4U	—	—
Prerequisitesas published	English, ENG4U Calculus and Vectors MCV4U Two of: Advanced Functions, MHF4U Biology, SBI4U +7 more on the program page	Advanced Functions (MHF4U) Calculus (MCV4U) 4 best 4U/M courses Alternative Offers Find more information about alternative offers +1 more on the program page	Biological Sciences: ENG4U MHF4U 2 4U Science courses 2 additional 4U/M courses +5 more on the program page
More than marks?supplementary application	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	Marks only
Co-op	Available	Available	No
Degree	—	—	—
First-year intakewhere published	550	—	—
What you study	Animal Science Astronomy Biological Sciences Chemistry	Computer Science Economics Mathematics Physics	Animal Science Biological Sciences Biotechnology Chemistry
What it is	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.	An Honours Mathematics degree means you study pure and applied mathematics at depth over four years, with required courses in calculus, algebra, analysis, and proof-based theory. Unlike a general math program, this honours stream demands rigorous mathematical reasoning and includes optional specializations through electives in computer science, physics, statistics, or economics. It suits students who enjoy abstract problem-solving and want a foundation for graduate studies or technical careers.	A Bachelor of Science (General) lets you study science broadly across biology, chemistry, environmental science, and related fields, choosing your own mix of courses rather than specializing deeply in one area. Unlike an honours program, it gives you flexibility to explore multiple sciences without committing to a single major or meeting the tighter requirements of a specialized stream. This suits students who are curious about science in general but aren't yet sure which direction appeals to them most.
The door tomajors you reach through it	biology chemistry earth science environmental science life sciences mathematics physics statistics	mathematics statistics	Applied to directly
Entrance awardsat this campus, by average	6 published, 5 with no applicationfrom 85%See them	16 published, 9 with no applicationfrom 75%See them	12 published, 4 with no applicationfrom 75%See them
Source	Western University on OUInfo	Carleton University on OUInfo	University of Guelph on OUInfo

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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.