3 programs, side by side

+ Add a program	York Environmental Arts & Justice (BES - Co-op available) OUAC YDF ☆ Add to planRemove	Western Science OUAC ES ☆ Add to planRemove	Guelph Bachelor of Science (BSc) Honours OUAC GZ ☆ Add to planRemove
Your average, their wayrequired courses forced in
Published rangetheir exact wording	73–77%“Mid-70s”	80–87%“Low to mid 80s”	80–91%“80-85% for all majors except Neuroscience (81-86%), and Animal Biology, Bio-Medical Science (85-91%)”
Required coursesforced into your top 6 — options are the row below	ENG4U	ENG4UMCV4U	ENG4U
Choose one ofany of these satisfies it	—	two of ICS4U, MDM4U, MHF4U, SBI4U, SES4U, SPH4U	two of SBI4U, SCH4U, SPH4U
Prerequisitesas published	Ontario Secondary School Diploma (OSSD) ENG4U 5 additional 4U/M courses Alternative Offers If you are inadmissible to the original degree program you have applied to, you may be +3 more on the program page	English, ENG4U Calculus and Vectors MCV4U Two of: Advanced Functions, MHF4U Biology, SBI4U +7 more on the program page	Biological Sciences: ENG4U MHF4U 2 4U Science courses 2 additional 4U/M courses +7 more on the program page
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	40	550	—
What you study	Environmental StudiesInterdisciplinary StudiesPoliticsSocial Policy	Animal ScienceAstronomyBiological SciencesChemistry	Animal ScienceBiological SciencesChemistryEnvironmental Studies
What it is	This program combines environmental science and social justice, exploring how environmental problems affect communities and how policy and activism can address them. You study ecology alongside politics, sociology, and ethics rather than treating environmental issues as purely technical. It suits students who care about the environment but want to understand its human and political dimensions, and the co-op option lets you work in nonprofits, government, or advocacy organizations while you study.	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 Bachelor of Science Honours is a four-year degree where you specialize in one science discipline — such as biology, chemistry, environmental studies, or nutrition — and take supporting courses in math and other sciences. The honours designation means you complete a research project or thesis in your final year. Many students choose the optional co-op stream, which alternates study terms with paid work placements in related fields, giving you practical experience alongside classroom learning. This program suits students who want depth in a single science and are interested in research, lab work, or professional roles in health, environment, or industry.
The door tomajors you reach through it	Applied to directly	biologychemistryearth scienceenvironmental sciencelife sciencesmathematicsphysicsstatistics	biochemistrybiologychemistryhealth scienceslife sciencesmicrobiologyneurosciencephysics
Entrance awardsat this campus, by average	29 published, 4 with no applicationfrom 75%See them	6 published, 5 with no applicationfrom 85%See them	12 published, 4 with no applicationfrom 75%See them
Source	York University on OUInfo	Western University on OUInfo	University of Guelph 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.