4 programs, side by side

Full	York Chemistry (BSc - Co-op available) OUAC YSC ☆ Add to planRemove	Carleton Science – Honours (4 years) OUAC CT ☆ Add to planRemove	Guelph Bachelor of Science (BSc) Honours OUAC GZ ☆ Add to planRemove	Western Science OUAC ES ☆ Add to planRemove
Your average, their wayrequired courses forced in
Published rangetheir exact wording	77–87%“High 70s to mid-80s”	78%	80–91%“80-85% for all majors except Neuroscience (81-86%), and Animal Biology, Bio-Medical Science (85-91%)”	80–87%“Low to mid 80s”
Required coursesforced into your top 6 — options are the row below	ENG4UMHF4USCH4U	No course codes parsed — see prerequisites	ENG4U	ENG4UMCV4U
Choose one ofany of these satisfies it	—	—	—	two of ICS4U, MDM4U, MHF4U, SBI4U, SES4U, SPH4U
Prerequisitesas published	Ontario Secondary School Diploma (OSSD) ENG4U MHF4U SCH4U 1 other 4U or 4M Science +6 more on the program page	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	Biological Sciences: ENG4U MHF4U 2 4U Science courses 2 additional 4U/M courses +7 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	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	Available
Degree	—	—	—	—
First-year intakewhere published	60	—	—	550
What you study	ChemistryMolecular Biology, Biochemistry	Audiology and Speech Language PathologyBiotechnologyChemistryEnvironmental Studies	Animal ScienceBiological SciencesChemistryEnvironmental Studies	Animal ScienceAstronomyBiological SciencesChemistry
What it is	A Chemistry degree teaches you the theory and practice of how substances interact, break down, and combine. You'll study pure chemistry alongside molecular biology and biochemistry, giving you a broader foundation than a straight chemistry program. The co-op option lets you alternate between classroom semesters and paid work terms at companies, so you can test whether lab or industrial chemistry work suits you before graduating.	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.	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.	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	chemistry	biochemistrybiologychemistryearth scienceenvironmental sciencelife sciencesneurosciencephysics	biochemistrybiologychemistryhealth scienceslife sciencesmicrobiologyneurosciencephysics	biologychemistryearth scienceenvironmental sciencelife sciencesmathematicsphysicsstatistics
Entrance awardsat this campus, by average	29 published, 4 with no applicationfrom 75%See them	16 published, 9 with no applicationfrom 75%See them	12 published, 4 with no applicationfrom 75%See them	6 published, 5 with no applicationfrom 85%See them
Source	York University on OUInfo	Carleton University on OUInfo	University of Guelph 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.