3 programs, side by side

+ Add a program	Western Science OUAC ES ☆ Add to planRemove	BU Brock Earth Sciences OUAC BX ☆ Add to planRemove	Guelph Bachelor of Arts and Sciences (BAS) OUAC GAS ☆ Add to planRemove
Your average, their wayrequired courses forced in
Published rangetheir exact wording	80–87%“Low to mid 80s”	73–77%“Mid 70s”	78–83%“78 to 83%”
Required coursesforced into your top 6 — options are the row below	ENG4UMCV4U	ENG4U	ENG4UMHF4U
Choose one ofany of these satisfies it	two of ICS4U, MDM4U, MHF4U, SBI4U, SES4U, SPH4U	one of MCV4U, MHF4U two of SBI4U, SCH4U, SES4U, SPH4U	two of SBI4U, SCH4U, SPH4U
Prerequisitesas published	English, ENG4U Calculus and Vectors MCV4U Two of: Advanced Functions, MHF4U Biology, SBI4U +7 more on the program page	ENG4U MHF4U or MCV4U 2 from SBI4U, SCH4U, SPH4U, SES4U, or a second 4U Math Alternative Offers You will receive an offer of admission to only 1 program. Your highest listed choice is considered first when you indicate more than 1 Brock program on your application. If you are not eligible for your first choice, your subsequent choices will be considered in your indicated order of preference. In most cases: If you apply to only 1 Brock program but do not qualify, you will be considered for an alternative or related program. If you apply but are not admitted to a co-op program, you will automatically be considered for the regular, non-co-op program.	ENG4U MHF4U One 4U/M Arts or Social Sciences Two from SBI4U, SCH4U, SPH4U One additional 4U/M course +3 more on the program page
More than marks?supplementary application	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	Available	Available	No
Degree	—	—	—
First-year intakewhere published	550	—	—
What you study	Animal ScienceAstronomyBiological SciencesChemistry	Environmental StudiesGeology	Animal ScienceAnthropologyBiological SciencesChemistry
What it is	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.	Earth Sciences is a study of rocks, minerals, Earth's structure, and environmental systems — how the planet works and how humans interact with it. The program includes a co-op work placement component, meaning you alternate between classroom study and paid work terms at companies or organizations in geology and environmental fields. It suits students curious about natural systems and interested in learning through hands-on experience in the workplace.	A Bachelor of Arts and Sciences lets you combine study in both humanities and natural sciences within one degree. Unlike most programs that require you to choose either arts or sciences, this one lets you take courses across both — for instance, pairing creative writing with chemistry, or anthropology with animal science. It suits people who are curious across multiple disciplines and want flexibility rather than specializing narrowly from the start.
The door tomajors you reach through it	biologychemistryearth scienceenvironmental sciencelife sciencesmathematicsphysicsstatistics	earth science	Applied to directly
Entrance awardsat this campus, by average	6 published, 5 with no applicationfrom 85%See them	4 published, 1 with no applicationfrom 80%See them	12 published, 4 with no applicationfrom 75%See them
Source	Western University on OUInfo	Brock University 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.