4 programs, side by side

Full	Western Science OUAC ES ☆ Add to planRemove	Algoma Biology (BSc 4 year) OUAC JGA ☆ Add to planRemove	U of T (Scarborough) Physical & Environmental Sciences (regular and co-op) OUAC TSP ☆ Add to planRemove	U of T (Mississauga) Chemical and Physical Sciences OUAC TMW ☆ Add to planRemove
Your average, their wayrequired courses forced in
Published rangetheir exact wording	80–87%“Low to mid 80s”	70%“70%+”	73–80%“Mid-70s (regular), high 70s (co-op)”	73–80%“Mid to high 70s”
Required coursesforced into your top 6 — options are the row below	ENG4UMCV4U	ENG4UMHF4U	ENG4UMCV4UMHF4U	ENG4UMHF4U
Choose one ofany of these satisfies it	two of ICS4U, MDM4U, MHF4U, SBI4U, SES4U, SPH4U	—	—	one of SBI4U, SCH4U, SPH4U
Prerequisitesas published	English, ENG4U Calculus and Vectors MCV4U Two of: Advanced Functions, MHF4U Biology, SBI4U +7 more on the program page	ENG4U MHF4U Two 4U/M science courses (Chemistry and Biology are recommended) Two other 4U/M courses 70% combined average in top six 4U/M courses	ENG4U MCV4U MHF4 Science prerequisites (SPH4U or SBI4U) for specific disciplines are also required. SCH4U is recommended for specific disciplines. See U of T Scarborough's viewbook +1 more on the program page	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.
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	Marks only
Co-op	Available	No	Available	Available
Degree	—	—	—	—
First-year intakewhere published	550	—	340	150
What you study	Animal ScienceAstronomyBiological SciencesChemistry	Environmental Studies	AstronomyChemistryEnvironmental StudiesGeology	AstronomyChemistryGeologyHuman Geography
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.	A four-year Bachelor of Science in Biology teaches you how living organisms work, from cells to ecosystems, with a focus on environmental systems and conservation. You'll study ecology, genetics, physiology, and how species interact with their surroundings, combining lab work with field study. This program suits students who want a broad foundation in biology and are interested in environmental issues, rather than pursuing a specialized professional path like medicine or engineering.	Physical & Environmental Sciences is a degree where you study the natural world through disciplines like physics, chemistry, geology, astronomy, and environmental science. You choose which areas to focus on based on your interests. The co-op option lets you alternate study with paid work terms in science-related workplaces, giving you real experience alongside your classes. This program suits students who want to understand how Earth and space work and prefer hands-on learning combined with classroom study.	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.
The door tomajors you reach through it	biologychemistryearth scienceenvironmental sciencelife sciencesmathematicsphysicsstatistics	biologylife sciences	biochemistrychemistryearth scienceenvironmental sciencephysics	biochemistrychemistryearth scienceenvironmental sciencephysics
Entrance awardsat this campus, by average	6 published, 5 with no applicationfrom 85%See them	7 published, 7 with no applicationfrom 80%See them	4 published, 4 with no applicationfrom 85%See them	4 published, 4 with no applicationfrom 90%See them
Source	Western University on OUInfo	Algoma University on OUInfo	University of Toronto — Scarborough on OUInfo	University of Toronto — Mississauga on OUInfo

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.