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.

	York Environmental Science (BSc) - Faculty of Environmental & Urban Change OUAC YBS Remove	U of T (St. George) Mathematical & Physical Sciences OUAC TPG Remove	Western Science OUAC ES Remove
Your average, their wayrequired courses forced in
Published rangetheir exact wording	80–87%“Low to mid 80s”	83–90%“Mid to high 80s”	80–87%“Low to mid 80s”
Required coursesforced into your top 6 — options are the row below	ENG4U	ENG4U MCV4U	ENG4U MCV4U
Choose one ofany of these satisfies it	—	—	two of ICS4U, MDM4U, MHF4U, SBI4U, SES4U, SPH4U
Prerequisitesas published	Ontario Secondary School Diploma (OSSD) ENG4U 4U Math 4U Science three additional 4U or 4M courses +5 more on the program page	ENG4U MCV4U Many programs also require or recommend 1 or more of SBI4U, SCH4U or SPH4U	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	—	—	—
First-year intakewhere published	25	—	550
What you study	Biological Sciences Physical Geography	Astronomy Chemistry Geology Materials Science	Animal Science Astronomy Biological Sciences Chemistry
What it is	Environmental Science combines the study of living systems and Earth's physical processes — like climate, water, and soil — to understand how natural environments work and respond to human activity. Unlike a program focused only on biology or only on geology, this degree integrates both to tackle real-world environmental problems. It suits students interested in conservation, resource management, or environmental consulting who want a broad scientific foundation rather than specialization in a single discipline.	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.	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	environmental science	chemistry earth science mathematics physics statistics	biology chemistry earth science environmental science life sciences mathematics physics statistics
Entrance awardsat this campus, by average	29 published, 4 with no applicationfrom 75%See them	5 published, 3 with no applicationfrom 90%See them	6 published, 5 with no applicationfrom 85%See them
Source	York University on OUInfo	University of Toronto — St. George on OUInfo	Western University on OUInfo

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