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Science

Western University

Sciences: blue ink subject illustration
Image source

AI-generated ink illustration

Conceptual study artwork, not a photograph of teaching facilities.

Unidex · generated with ImageGen

Checked 2026-11-05

Symbolic subject artwork; no university facility depicted

Deadlines

November 2026

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Next deadline

  • OUAC. Ontario high schools report midterm/final 4U/M grades

    2027 entry

    School deadline, not a student task. Universities receive these grades by November 26. Verbatim: "Deadline for the OUAC to receive all midterm or final grades available for 4U/M courses from Ontario high schools. Schools may report in-progress grades for full-year courses as soon as they are available." Universities receive these by the target date of November 26, 2026. This is a deadline on the high school, not on the student, but it governs which grades a university sees in the first round.

    Official deadline
Other deadline details
Late September 2026Applications open on the OUAC2027 entry
  • Late September 2026
  • Page gives "Late September" under the heading "September 2026", no exact day
SourceChecked
No single OUAC deadline, deadlines are set by each university and sometimes by programOUAC Undergraduate application, applicants who are not Ontario high school students (Group B)2026 entry
  • No single OUAC deadline, deadlines are set by each university and sometimes by program
  • No single OUAC deadline
  • University, program, transcript, portfolio, interview, and audition dates still apply
Full source wording

Verbatim: "There is no specific Undergraduate application deadline if you are a Group B applicant. Deadlines vary at each university and sometimes depend on the program. Visit the university websites or contact the universities directly for their deadlines. If you are interested in a program but the deadline has passed, you may contact the university's admission office for help. Be aware of university-specific deadlines for submitting transcripts and portfolios, if required, and for arranging interviews and auditions. You must ensure the OUAC has enough time to process your choices before the universities' program deadlines." OUAC defines Group B as anyone who does not meet the Group A criteria, e.g. not currently taking an Ontario high school course, a Canadian outside Ontario, an international applicant, a postsecondary transfer student, or a mature applicant.

SourceChecked
Mid April 2027Last date to receive English Proficiency test results2027 entry
  • Mid April 2027
  • Page gives "Mid April", no exact day
SourceChecked

Requirements

Admission requirements

High-school prerequisites
  • ENG4UEnglish70% min.
  • MCV4UCalculus and Vectors70% min.
  • Ontario Secondary School Diploma with at least six Grade 12 U/M courses, excluding co-op.
  • Complete two of Advanced Functions (MHF4U), Biology (SBI4U), Chemistry (SCH4U), Computer Science (ICS4U), Earth and Space Science (SES4U), Mathematics of Data Management (MDM4U), or Physics (SPH4U), with at least 70% in each.
  • Grade 12 Biology and Chemistry are required for the corresponding first-year courses and can affect later module eligibility.
Western Ontario high-school admission requirements
Application steps

Entry terms · Fall 2027

Western main campus · ES

Western Science September 2027 admission and study options
  1. Step 1Check the admission requirements
    • Check the published entry route for your applicant category.
    Western Ontario high-school admission requirementsWestern Ontario high-school admission requirements
  2. Step 2Apply through OUAC
    • Create your application and select this program.
    OUACOUAC
  3. Step 3Grades and final academic records
    • Current Ontario high school applicants verify grades in OUAC. Other Canadian high school applicants complete the requested Self-Reported Grades Form. Other backgrounds follow the Student Center To-Do List. Final transcript or exam results are required before starting studies.
    Western submitting your gradesWestern submitting your grades
  4. Step 4Apply through OUAC using code ES.
    • Complete this item using the university’s applicant instructions.
    Western Ontario high-school admission requirementsWestern Ontario high-school admission requirements

Degree requirements

Credits and degree requirements
  • Plan 5.0 first-year courses for your intended module.
  • A four-year Honours BSc requires 20.0 courses, including at least 11.0 approved science courses. The selected module sets specific progression requirements.
ReferencesWestern Science Academic Advising · first-year course plans by disciplineWestern Science Academic Advising BSc modulesWestern Senate graduation requirementsWestern Science Academic Advising · graduation requirements
Course planning
  • Science Academic Advising specifies at least 2.0 designated essay courses for both three- and four-year degrees, including at least 1.0 at the senior level, plus at least 1.0 each from categories A and B.
ReferencesWestern Science Academic Advising · first-year course plans by disciplineWestern Science Academic Advising BSc modulesWestern Senate graduation requirementsWestern Science Academic Advising · graduation requirements

Program facts

Entering average~Low to mid 80s

Typical average for the previous incoming Ontario class.

Western Ontario high-school admission requirementsWestern Ontario high-school admission requirements
Co-opOptional paid Science Co-op for eligible four-year students

Eligible four-year students can apply from second year. The co-op designation requires at least 12 months of work, with up to 20 months available.

University work-study information
Western Science co-op eligibilityCheck work experience options

Majors & specializations

Choose a module after first year. The listed subjects are academic routes within the Science entry.

Actuarial Science

BSc

Apply probability and mathematics to financial risk and insurance.

Published requirementsPublished courses

Courses

Published first-year examples by intended module. Western does not publish one common set of required courses for every Science student. First-year Biology and Chemistry plans are examples for the broad Science entry. Each intended module has its own plan.

Biology and Chemistry examples4 listed
Western Science September 2027 admission and study options
Earth science, mathematics and physics examples3 listed
Western Science September 2027 admission and study options
First-year Science · Biology planning example6 listed

The Biology plan lists both Biology and Chemistry pairs, 1.0 eligible mathematics and one first-half physics course. The advising page specifies additional electives and module exceptions.

Western Science Academic Advising · first-year course plans by discipline
First-year Science · Chemistry planning example6 listed

The Chemistry plan lists both Chemistry courses, an approved Physics course for each term, and two mathematics half courses. The advising page specifies the eligible choices and remaining electives.

Western Science Academic Advising · first-year course plans by discipline
Study routes

Choose a module after first year. The listed subjects are academic routes within the Science entry.

  • Earth and Environmental Sciences
  • Physics and Astronomy
  • Statistical and Actuarial Sciences

Careers

Scope and qualifications

Career examples depend on the selected module.

Western lists career and industry examples by science discipline.

Costs

Science

Published cost estimate

2027–28 · First-year Fall/Winter · CAD

Ontario example · Choose your category

Estimated tuition$6,294
Books and suppliesUnpublished
Residence
Residence
Not estimated
Meal plan
Not estimated
Estimated subtotalNot available

Western Registrar’s prospective Fall/Winter 2027–28 tuition estimate. The Faculty of Science category excludes the separate Computer Science fee row. Incidental fees and books are separate.

Housing and meals are outside this estimate.

Last updated

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