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.

	U of T (St. George) Mathematical & Physical Sciences OUAC TPG Remove	Windsor Environmental Science/Environmental Studies OUAC NLS Remove	Carleton Science – Major (4 years) OUAC CK Remove
Your average, their wayrequired courses forced in
Published rangetheir exact wording	83–90%“Mid to high 80s”	70%“70% minimum average”	74–76%
Required coursesforced into your top 6 — options are the row below	ENG4U MCV4U	ENG4U MHF4U SBI4U SCH4U	MHF4U SBI4U SPH4U
Choose one ofany of these satisfies it	—	—	two of MCV4U, SCH4U, SES4U
Prerequisitesas published	ENG4U MCV4U Many programs also require or recommend 1 or more of SBI4U, SCH4U or SPH4U	Environmental Studies 70% minimum average ENG4U Environmental Science 70% minimum average +7 more on the program page	Biochemistry, Biology, Earth Sciences, Environmental Science, Neuroscience and Mental Health, and Physics. MHF4U 2 of MCV4U, SBI4U, SCH4U, SES4U or SPH4U 3 best 4U/M courses For all programs in Physics, SPH4U is strongly recommended. +3 more on the program page
More than marks?supplementary application	Marks only	Marks only	Marks only
Co-op	Available	No	No
Degree	—	Bachelor of Environmental Studies, BES, Bachelor of Science, BSc	—
First-year intakewhere published	—	—	—
What you study	Astronomy Chemistry Geology Materials Science	Environmental Studies Geology Human Geography Others in Physical Sciences	Environmental Studies Geology Molecular Biology, Biochemistry Others in Physical Sciences
What it is	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.	You study how the natural world works alongside the human systems that affect it. The BES focuses on environmental policy, conservation, and sustainability through social and geographic lenses, while the BSc emphasizes the physical science side: geology, ecology, and environmental processes. Both paths suit people interested in solving real environmental problems through either policy and community work or scientific research and analysis.	A Science Major is a four-year degree where you study one science subject deeply — such as physics, biology, geology, or environmental science — along with complementary courses in math and other sciences. It differs from a specialized honours program in that you focus on breadth within your chosen field rather than pursuing a single narrow specialization. This program suits students who want solid grounding in a science discipline without committing to professional training like engineering or medicine.
The door tomajors you reach through it	chemistry earth science mathematics physics statistics	earth science environmental science	Applied to directly
Entrance awardsat this campus, by average	5 published, 3 with no applicationfrom 90%See them	None published by average	16 published, 9 with no applicationfrom 75%See them
Source	University of Toronto — St. George on OUInfo	University of Windsor on OUInfo	Carleton University on OUInfo

Also compare with

Same subject area and a similar published range, at a campus you have not got in the table yet.

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.