4 programs, side by side

Full	Carleton Science – Major (4 years) OUAC CK ☆ Add to planRemove	Queen's Earth and Environmental Science Pathway OUAC QSE ☆ Add to planRemove	U of T (Scarborough) Physical & Environmental Sciences - Health Sciences Stream (regular and co-op) OUAC TXH ☆ Add to planRemove	York (Glendon) Biology (BSc, iBSc) OUAC YYF ☆ Add to planRemove
Your average, their wayrequired courses forced in
Published rangetheir exact wording	74–76%	80–87%“Low to Mid-80s”	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	MHF4USBI4USPH4U	ENG4UMCV4U	ENG4UMCV4UMHF4U	ENG4UFRA4UMHF4USBI4USCH4U
Choose one ofany of these satisfies it	two of MCV4U, SCH4U, SES4U	two of SBI4U, SCH4U, SPH4U	—	—
Prerequisitesas published	Biochemistry, Biology, Earth Sciences, Environmental Science, Neuroscience and Mental Health, and Physics. MHF4U 2 of MCV4U, SBI4U, SCH4U, SES4U or SPH4U 3 best 4U/M courses For all programs in Physics, SPH4U is strongly recommended. +3 more on the program page	ENG4U MCV4U 2 of SBI4U, SCH4U, or SPH4U 2 Additional 4 U/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	Ontario Secondary School Diploma (OSSD) ENG4U (FRA4U for Francophone applicants) SBI4U SCH4U MHF4U +7 more on the program page
More than marks?supplementary application	Marks only	Marks only	Marks only	Marks only
Co-op	No	Available	Available	No
Degree	—	—	—	Bachelor of Science, BSc, International Bachelor of Science, iBSc
First-year intakewhere published	—	—	340	—
What you study	Environmental StudiesGeologyMolecular Biology, BiochemistryOthers in Physical Sciences	Biological SciencesBiologyBiotechnologyChemistry	AstronomyChemistryEnvironmental StudiesGeology	Animal ScienceBiological SciencesBiologyBiotechnology
What it is	A Science Major is a four-year degree where you study one science subject deeply — such as physics, biology, geology, or environmental science — along with complementary courses in math and other sciences. It differs from a specialized honours program in that you focus on breadth within your chosen field rather than pursuing a single narrow specialization. This program suits students who want solid grounding in a science discipline without committing to professional training like engineering or medicine.	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.	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 Biology degree at Glendon lets you study how living things work, from cells and molecules to whole organisms and ecosystems. You'll take core biology courses and choose from specialized areas like genetics, microbiology, human biology, or biotechnology. The iBSc variant integrates bilingual (English–French) instruction throughout your degree, rather than offering biology taught only in English.
The door tomajors you reach through it	Applied to directly	earth scienceenvironmental science	health sciences	Applied to directly
Entrance awardsat this campus, by average	16 published, 9 with no applicationfrom 75%See them	None published by average	4 published, 4 with no applicationfrom 85%See them	13 published, 4 with no applicationfrom 75%See them
Source	Carleton University on OUInfo	Queen's University on OUInfo	University of Toronto — Scarborough on OUInfo	York University — Glendon 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.