4 programs, side by side

Full	McMaster Honours Integrated Science OUAC MIS ☆ Add to planRemove	Western Science OUAC ES ☆ Add to planRemove	U of T (St. George) Life Sciences (including Psychology) OUAC TLG ☆ 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	87–90%“A minimum of high-80s is required for consideration. Admission is by selection.”Admission by selection — the real bar may sit above this	80–87%“Low to mid 80s”	83–90%“Mid- to high 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	ENG4UMCV4UMHF4U	ENG4UMCV4U	ENG4UMCV4U	ENG4U
Choose one ofany of these satisfies it	two of SBI4U, SCH4U, SPH4U	two of ICS4U, MDM4U, MHF4U, SBI4U, SES4U, SPH4U	—	two of SBI4U, SCH4U, SPH4U
Prerequisitesas published	English 4U Advanced Functions 4U Calculus & Vectors 4U 2 of Biology 4U, Chemistry 4U, Physics 4U *Completion of all 3 sciences is strongly recommended.	English, ENG4U Calculus and Vectors MCV4U Two of: Advanced Functions, MHF4U Biology, SBI4U +7 more on the program page	ENG4U MCV4U Many programs also require or recommend 1 or more of SBI4U, SCH4U or SPH4U	Biological Sciences: ENG4U MHF4U 2 4U Science courses 2 additional 4U/M courses +7 more on the program page
More than marks?supplementary application	Yes OUAC Application Deadline: January 15, 2027. An online supplementary application Usually closes before January 15	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
Co-op	No	Available	Available	Available
Degree	—	—	—	—
First-year intakewhere published	65	550	—	—
What you study	BiologyChemistryEnvironmental StudiesInterdisciplinary Studies	Animal ScienceAstronomyBiological SciencesChemistry	Animal ScienceAnthropologyBiological SciencesEnvironmental Studies	Animal ScienceBiological SciencesChemistryEnvironmental Studies
What it is	Honours Integrated Science teaches you how different sciences connect and overlap rather than studying them in separate boxes. You'll take courses across biology, chemistry, physics, psychology, and environmental studies, learning how they relate to real problems instead of treating each discipline independently. This suits students who want a flexible foundation in science and aren't certain yet which single specialization they'll pursue.	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.	This program covers the study of living organisms and human behaviour, from genetics and microbiology to ecology, nutrition, and psychology. You'll choose a focus area like biological sciences, animal science, environmental studies, or psychology, and take courses that build on that specialization. The co-op option lets you alternate between classroom study and paid work in research labs, hospitals, or environmental organizations. It suits students curious about how life works at every scale, from cells to ecosystems to minds, and who want hands-on experience alongside theory.	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	biochemistrybiologyenvironmental sciencehealth scienceslife sciencesmedical sciencesmicrobiologyneuroscience	biochemistrybiologychemistryhealth scienceslife sciencesmicrobiologyneurosciencephysics
Entrance awardsat this campus, by average	5 published, 3 with no applicationfrom 75%See them	6 published, 5 with no applicationfrom 85%See them	5 published, 3 with no applicationfrom 90%See them	12 published, 4 with no applicationfrom 75%See them
Source	McMaster University on OUInfo	Western University on OUInfo	University of Toronto — St. George 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.