4 programs, side by side

Full	York Science (BSc, First Year Only) OUAC YPU ☆ Add to planRemove	U of T (Scarborough) Physical & Environmental Sciences - Health Sciences Stream (regular and co-op) OUAC TXH ☆ Add to planRemove	Carleton Science – Non-Honours (3 years) OUAC CS ☆ Add to planRemove	Waterloo Climate and Environmental Change (Regular/Co-op) OUAC WCE ☆ Add to planRemove
Your average, their wayrequired courses forced in
Published rangetheir exact wording	80–87%“Low to mid-80s”	73–80%“Mid-70s (regular), high 70s (co-op)”	78%	77–80%“High 70s”
Required coursesforced into your top 6 — options are the row below	ENG4UMHF4U	ENG4UMCV4UMHF4U	MHF4USBI4USCH4U	ENG4U
Choose one ofany of these satisfies it	one of SBI4U, SCH4U, SPH4U	—	two of MCV4U, SES4U, SPH4U	one of SCH4U, SPH4U
Prerequisitesas published	Ontario Secondary School Diploma (OSSD) ENG4U MHF4U SCH4U or SPH4U or SBI4U 3 additional 4U/M courses +3 more on the program page	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	Biology, Chemistry, Earth Sciences, and Neuroscience and Mental Health. Advanced Functions (MHF4U) Two credits from Calculus (MCV4U), Biology (SBI4U), Chemistry (SCH4U), Earth and Space Science (SES4U) or Physics (SPH4U) 3 best 4U/M courses Alternative Offers +2 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	Marks only	Marks only	Marks only
Co-op	No	Available	No	Available
Degree	—	—	—	—
First-year intakewhere published	—	340	—	5
What you study	ChemistryOthers in Physical SciencesOthers in Subjects Related to MedicinePhysics	AstronomyChemistryEnvironmental StudiesGeology	ChemistryGeologyOthers in Physical SciencesOthers in Subjects Related to Medicine	ChemistryEnvironmental StudiesHuman GeographyPhysical Geography
What it is	You start your first year studying foundational science — chemistry, physics, and related subjects that prepare you for medicine or specialized science programs. Rather than declare a major immediately, you complete a broad first year, then choose your focus (like biochemistry, physics, or health sciences) once you understand the field better. This suits students who know they want science but aren't certain which direction yet, or who want flexibility before committing.	You study physical sciences — chemistry, physics, geology, and environmental topics — with a focus on how they connect to human health and the living world. This stream emphasizes the intersection between earth and life sciences rather than pure physics or chemistry alone. The co-op option lets you do paid work terms at relevant employers alongside your degree. It suits students interested in environmental health, toxicology, or science careers that bridge the natural world and wellness.	A Science Non-Honours degree lets you study physical sciences — chemistry, geology, and related fields — without committing to a specialized honours stream. You complete a three-year program with broader course choices and fewer upper-level requirements than an honours degree, giving you flexibility to explore different areas before specializing or applying to professional programs. This suits students who want a solid science foundation, aren't sure which specialization to pursue, or plan to move into medicine, health sciences, or graduate study.	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	Applied to directly	health sciences	Applied to directly	Applied to directly
Entrance awardsat this campus, by average	29 published, 4 with no applicationfrom 75%See them	4 published, 4 with no applicationfrom 85%See them	16 published, 9 with no applicationfrom 75%See them	4 published, 3 with no applicationfrom 80%See them
Source	York University on OUInfo	University of Toronto — Scarborough on OUInfo	Carleton University on OUInfo	University of Waterloo 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.