Chemistry at Western
Not directly. At Western University you apply to Science (ES), then choose chemistry at the end of first year, during Intent to Register in March.
The program you actually apply to
Science
80–87%OUAC ESCo-op availableSupplementary application
Prerequisites
- English, ENG4U
- Calculus and Vectors MCV4U
- Two of:
- Advanced Functions, MHF4U
- Biology, SBI4U
- Math of Data Management, MDM4U
When you choose chemistry
At the end of first year, during Intent to Register in March.
What to watch for
Science (ES) requires ENG4U and MCV4U plus two of a science/math list. SCH4U is not strictly required for admission, but Western states it is required to take first-year Chemistry, and every Chemistry module (Honours Specialization in Chemistry, Honours Specialization in Biochemistry and Chemistry, Specialization, Major) is built on it.
The same application also gets you to
Science is the entry point for 7 other majors at Western. You are not choosing between these at application time.
Chemistry at the other campuses
Compare the entry programs side by side →- Algomanot offered at Algoma
- BrockDirect entry73–77%
- Carletonvia Science - Honours (CT)78%
- Guelphvia Bachelor of Science (BSc) Honours (GZ)80–91%
- LakeheadDirect entry70%
- LaurentianDirect entry70%
- Laurier (Waterloo)Direct entry73–77%
- McMastervia Chemical & Physical Sciences Gateway83–87%
- Nipissingnot offered at Nipissing
- Ontario TechDirect entry70–73%
- Queen'svia Science – Physical and Chemical Sciences (QSP)80–87%
- TMUDirect entry70–75%
- TrentDirect entry70%
- U of T (Mississauga)via Chemical & Physical Sciences73–80%
- U of T (Scarborough)via Physical & Environmental Sciences (OUAC TSP)73–80%
- U of T (St. George)via Mathematical & Physical Sciences83–90%
- Waterloovia Physical Sciences80–83%
- WindsorDirect entry70–75%
- YorkDirect entry77–87%
Entry routes were researched against each university’s own program pages in 2026-08-16. Western’s page. Faculties restructure — confirm before you apply.