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 (Mississauga) Chemical and Physical Sciences OUAC TMW Remove	Western Science OUAC ES Remove	Waterloo Climate and Environmental Change (Regular/Co-op) OUAC WCE Remove
Your average, their wayrequired courses forced in
Published rangetheir exact wording	73–80%“Mid to high 70s”	80–87%“Low to mid 80s”	77–80%“High 70s”
Required coursesforced into your top 6 — options are the row below	ENG4U MHF4U	ENG4U MCV4U	ENG4U
Choose one ofany of these satisfies it	one of SBI4U, SCH4U, SPH4U	two of ICS4U, MDM4U, MHF4U, SBI4U, SES4U, SPH4U	one of SCH4U, SPH4U
Prerequisitesas published	ENG4U MHF4U Some areas also require additional prerequisites, such as SCH4U and/or SBI4U and/or SPH4U Alternative Offers Because of the competitive nature of this program, you may receive an invitation after you apply for your application to be automatically reviewed for an alternative program, provided you are qualified and there is space.	English, ENG4U Calculus and Vectors MCV4U Two of: Advanced Functions, MHF4U Biology, SBI4U +7 more on the program page	English (ENG4U – min. 70%) Any Grade 12 U Mathematics (min. 70%) Chemistry or Physics
More than marks?supplementary application	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	Marks only
Co-op	Available	Available	Available
Degree	—	—	—
First-year intakewhere published	150	550	5
What you study	Astronomy Chemistry Geology Human Geography	Animal Science Astronomy Biological Sciences Chemistry	Chemistry Environmental Studies Human Geography Physical Geography
What it is	You study chemistry, physics, astronomy, or geology at an advanced level, choosing your focus after first year. This program includes a co-op option that lets you work for employers in research, industry, or government between school terms. It suits students who are curious about how matter, energy, and natural systems work and want both hands-on lab experience and real-world work placements.	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.	You study how Earth's climate and environment work, using chemistry, physics, and geography to understand weather systems, ecosystems, and human impacts. This program combines natural science with social geography, so you examine both the physical causes of environmental change and how people and communities respond to it. It suits students curious about climate science who want hands-on experience through co-op placements alongside their coursework.
The door tomajors you reach through it	biochemistry chemistry earth science environmental science physics	biology chemistry earth science environmental science life sciences mathematics physics statistics	Applied to directly
Entrance awardsat this campus, by average	4 published, 4 with no applicationfrom 90%See them	6 published, 5 with no applicationfrom 85%See them	4 published, 3 with no applicationfrom 80%See them
Source	University of Toronto — Mississauga on OUInfo	Western University on OUInfo	University of Waterloo on OUInfo

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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.