4 programs, side by side

Full	Western Science OUAC ES ☆ Add to planRemove	Guelph Bachelor of Science (BSc) Honours OUAC GZ ☆ Add to planRemove	Waterloo Science and Business (Regular/Co-op) OUAC WSB ☆ Add to planRemove	Carleton Science – Honours (4 years) OUAC CT ☆ Add to planRemove
Your average, their wayrequired courses forced in
Published rangetheir exact wording	80–87%“Low to mid 80s”	80–91%“80-85% for all majors except Neuroscience (81-86%), and Animal Biology, Bio-Medical Science (85-91%)”	80–83%“Low 80s”	78%
Required coursesforced into your top 6 — options are the row below	ENG4UMCV4U	ENG4U	ENG4UMCV4UMHF4U	No course codes parsed — see prerequisites
Choose one ofany of these satisfies it	two of ICS4U, MDM4U, MHF4U, SBI4U, SES4U, SPH4U	—	two of MDM4U, SBI4U, SCH4U, SES4U, SPH4U	—
Prerequisitesas published	English, ENG4U Calculus and Vectors MCV4U Two of: Advanced Functions, MHF4U Biology, SBI4U +7 more on the program page	Biological Sciences: ENG4U MHF4U 2 4U Science courses 2 additional 4U/M courses +7 more on the program page	English (ENG4U – min. 70%) Advanced Functions (min. 70%) Calculus and Vectors (min. 70%) Any two of the following: Biology, Chemistry, Earth and Space Science, Mathematics of Data Management, or Physics	Honours in Biochemistry, Bioinformatics, Biology, Biotechnology, Chemistry, Linguistics, Neuroscience and Mental Health, Psycholinguistics and Communications Differences, Psychology, and Gateway (Physical Sciences and Life Sciences): Advanced Functions (MHF4U) Two credits from Biology (SBI4U), Chemistry (SCH4U), Earth and Space Science (SES4U), or Physics (SPH4U) 3 best 4U/M courses +7 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	Marks only
Co-op	Available	Available	Available	Available
Degree	—	—	—	—
First-year intakewhere published	550	—	85	—
What you study	Animal ScienceAstronomyBiological SciencesChemistry	Animal ScienceBiological SciencesChemistryEnvironmental Studies	Biological SciencesBiotechnologyBusiness StudiesChemistry	Audiology and Speech Language PathologyBiotechnologyChemistryEnvironmental Studies
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.	A Bachelor of Science Honours is a four-year degree where you specialize in one science discipline — such as biology, chemistry, environmental studies, or nutrition — and take supporting courses in math and other sciences. The honours designation means you complete a research project or thesis in your final year. Many students choose the optional co-op stream, which alternates study terms with paid work placements in related fields, giving you practical experience alongside classroom learning. This program suits students who want depth in a single science and are interested in research, lab work, or professional roles in health, environment, or industry.	You study science and business together in one program, combining technical subjects like chemistry or biology with courses in marketing, entrepreneurship, and business strategy. Unlike a regular science degree with a business minor added on, this program integrates both throughout, so you learn how science discoveries become commercial products. The co-op option lets you alternate school terms with paid work placements. This suits students who want a science background but also care about bringing ideas to market or running a company.	This is a four-year science degree where you specialize in one of many fields — from chemistry and physics to biology, geology, audiology, linguistics, or environmental science. The honours designation means you go deeper into your chosen subject than a general science degree would. The program includes optional co-op work terms, letting you gain paid professional experience alongside your studies, which suits students who want both classroom learning and real workplace practice in their field.
The door tomajors you reach through it	biologychemistryearth scienceenvironmental sciencelife sciencesmathematicsphysicsstatistics	biochemistrybiologychemistryhealth scienceslife sciencesmicrobiologyneurosciencephysics	Applied to directly	biochemistrybiologychemistryearth scienceenvironmental sciencelife sciencesneurosciencephysics
Entrance awardsat this campus, by average	6 published, 5 with no applicationfrom 85%See them	12 published, 4 with no applicationfrom 75%See them	4 published, 3 with no applicationfrom 80%See them	16 published, 9 with no applicationfrom 75%See them
Source	Western University on OUInfo	University of Guelph on OUInfo	University of Waterloo on OUInfo	Carleton 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.