3 programs, side by side

+ Add a program	McMaster Honours Integrated Science OUAC MIS ☆ Add to planRemove	Western Science OUAC ES ☆ Add to planRemove	Queen's Earth and Environmental Science Pathway OUAC QSE ☆ 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”	80–87%“Low to Mid-80s”
Required coursesforced into your top 6 — options are the row below	ENG4UMCV4UMHF4U	ENG4UMCV4U	ENG4UMCV4U
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 2 of SBI4U, SCH4U, or SPH4U 2 Additional 4 U/M courses
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
Co-op	No	Available	Available
Degree	—	—	—
First-year intakewhere published	65	550	—
What you study	BiologyChemistryEnvironmental StudiesInterdisciplinary Studies	Animal ScienceAstronomyBiological SciencesChemistry	Biological SciencesBiologyBiotechnologyChemistry
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.	You study the natural systems that support life on Earth — combining biology, chemistry, geology, and geography to understand ecosystems, environmental problems, and how living things interact with their physical surroundings. This pathway is structured to integrate multiple science disciplines rather than focus narrowly on one, and it includes mandatory co-operative work terms where you apply classroom learning to real environmental jobs. It suits students curious about how nature works across scales, from molecules to landscapes, who want hands-on experience before deciding on a specific environmental career.
The door tomajors you reach through it	Applied to directly	biologychemistryearth scienceenvironmental sciencelife sciencesmathematicsphysicsstatistics	earth scienceenvironmental science
Entrance awardsat this campus, by average	5 published, 3 with no applicationfrom 75%See them	6 published, 5 with no applicationfrom 85%See them	None published by average
Source	McMaster University on OUInfo	Western University on OUInfo	Queen's University 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.