3 programs, side by side

+ Add a program	Ottawa Environmental Science (4 years) (French Immersion Stream is available) OUAC OUO ☆ Add to planRemove	Ottawa Environmental Geoscience (4 years) (French Immersion Stream is available) OUAC OWO ☆ Add to planRemove	Western Science OUAC ES ☆ Add to planRemove
Your average, their wayrequired courses forced in
Published rangetheir exact wording	80%	80%	80–87%“Low to mid 80s”
Required coursesforced into your top 6 — options are the row below	MCV4UMHF4U	MCV4UMHF4U	ENG4UMCV4U
Choose one ofany of these satisfies it	one of ENG4U, FRA4U two of SBI4U, SCH4U, SES4U, SPH4U	one of ENG4U, FRA4U two of SBI4U, SCH4U, SES4U, SPH4U	two of ICS4U, MDM4U, MHF4U, SBI4U, SES4U, SPH4U
Prerequisitesas published	ENG4U or FRA4U MHF4U MCV4U 2 of SBI4U, SCH4U, SPH4U, SES4U A combined minimum average of 70% is required for all prerequisite courses in science and mathematics. +3 more on the program page	ENG4U or FRA4U MHF4U MCV4U 2 of SBI4U, SCH4U, SPH4U, SES4U A combined minimum average of 70% is required for all prerequisite courses in science and mathematics. +2 more on the program page	English, ENG4U Calculus and Vectors MCV4U Two of: Advanced Functions, MHF4U Biology, SBI4U +7 more on the program page
More than marks?supplementary application	Marks only	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
Co-op	Available	Available	Available
Degree	Bachelor of Science, BSc, Bachelor of Science (Co-op), BSc (Co-op)	Bachelor of Science, BSc, Bachelor of Science (Co-op), BSc (Co-op)	—
First-year intakewhere published	—	—	550
What you study	Environmental StudiesGeologyPhysical Geography	Environmental StudiesGeologyHuman GeographyPhysical Geography	Animal ScienceAstronomyBiological SciencesChemistry
What it is	Environmental Science is the study of how natural systems — including geology, weather patterns, and ecosystems — work and how human activities affect them. You'll take courses across earth science, geography, and environmental studies to understand environmental problems and solutions. The Co-op version requires you to complete paid work terms at environmental organizations or research facilities alongside your studies, giving you real workplace experience in the field.	Environmental Geoscience is the study of Earth's physical systems — rocks, landforms, water, and climate — combined with how human activity affects and depends on the environment. It differs from pure geology because it emphasizes the interactions between natural processes and people, drawing on geography and environmental science alongside earth science. It suits students curious about how landscapes form and change, and interested in solving real-world problems like pollution, resource management, or climate impacts.	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.
The door tomajors you reach through it	Applied to directly	Applied to directly	biologychemistryearth scienceenvironmental sciencelife sciencesmathematicsphysicsstatistics
Entrance awardsat this campus, by average	22 published, 5 with no applicationfrom 75%See them	22 published, 5 with no applicationfrom 75%See them	6 published, 5 with no applicationfrom 85%See them
Source	University of Ottawa on OUInfo	University of Ottawa on OUInfo	Western 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.