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.

	McMaster Honours Integrated Science OUAC MIS Remove	Western Science OUAC ES Remove	U of T (St. George) Mathematical & Physical Sciences OUAC TPG Remove
Your average, their wayrequired courses forced in
Published rangetheir exact wording	87–90%“A minimum of high-80s is required for consideration. Admission is by selection.”Admission by selection — the real bar may sit above this	80–87%“Low to mid 80s”	83–90%“Mid to high 80s”
Required coursesforced into your top 6 — options are the row below	ENG4U MCV4U MHF4U	ENG4U MCV4U	ENG4U MCV4U
Choose one ofany of these satisfies it	two of SBI4U, SCH4U, SPH4U	two of ICS4U, MDM4U, MHF4U, SBI4U, SES4U, SPH4U	—
Prerequisitesas published	English 4U Advanced Functions 4U Calculus & Vectors 4U 2 of Biology 4U, Chemistry 4U, Physics 4U *Completion of all 3 sciences is strongly recommended.	English, ENG4U Calculus and Vectors MCV4U Two of: Advanced Functions, MHF4U Biology, SBI4U +7 more on the program page	ENG4U MCV4U Many programs also require or recommend 1 or more of SBI4U, SCH4U or SPH4U
More than marks?supplementary application	Yes OUAC Application Deadline: January 15, 2027. An online supplementary application Usually closes before January 15	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	No	Available	Available
Degree	—	—	—
First-year intakewhere published	65	550	—
What you study	Biology Chemistry Environmental Studies Interdisciplinary Studies	Animal Science Astronomy Biological Sciences Chemistry	Astronomy Chemistry Geology Materials Science
What it is	Honours Integrated Science teaches you how different sciences connect and overlap rather than studying them in separate boxes. You'll take courses across biology, chemistry, physics, psychology, and environmental studies, learning how they relate to real problems instead of treating each discipline independently. This suits students who want a flexible foundation in science and aren't certain yet which single specialization they'll pursue.	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 program combines foundational study in mathematics with hands-on work in chemistry, physics, astronomy, geology, and related fields. You'll take core courses in pure and applied mathematics alongside lab work and theory in the physical sciences, giving you breadth rather than specialization in a single discipline. It suits students drawn to quantitative problem-solving across multiple scientific areas who want flexibility to explore before committing to a specific path.
The door tomajors you reach through it	Applied to directly	biology chemistry earth science environmental science life sciences mathematics physics statistics	chemistry earth science mathematics physics statistics
Entrance awardsat this campus, by average	5 published, 3 with no applicationfrom 75%See them	6 published, 5 with no applicationfrom 85%See them	5 published, 3 with no applicationfrom 90%See them
Source	McMaster University on OUInfo	Western University on OUInfo	University of Toronto — St. George 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.