3 programs, side by side

+ Add a program	Western Science OUAC ES ☆ Add to planRemove	Waterloo Environmental Engineering (Co-op Only) OUAC WEE ☆ Add to planRemove	Ottawa Chemical Engineering and Computing Technology (5-year double degree) OUAC OEA ☆ Add to planRemove
Your average, their wayrequired courses forced in
Published rangetheir exact wording	80–87%“Low to mid 80s”	83–90%“Mid- to High 80s”	80–85%“80-85%”
Required coursesforced into your top 6 — options are the row below	ENG4UMCV4U	ENG4UMCV4UMHF4USCH4USPH4U	MCV4UMHF4USCH4USPH4U
Choose one ofany of these satisfies it	two of ICS4U, MDM4U, MHF4U, SBI4U, SES4U, SPH4U	—	one of ENG4U, FRA4U
Prerequisitesas published	English, ENG4U Calculus and Vectors MCV4U Two of: Advanced Functions, MHF4U Biology, SBI4U +7 more on the program page	English (ENG4U – min. 70%) Advanced Functions (min. 70%) Calculus and Vectors (min. 70%) Chemistry (min. 70%) Physics (min. 70%)	ENG4U or FRA4U MHF4U MCV4U SPH4U SCH4U +2 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	Yes NEW: All Engineering program applications require an online video interview. You will receive more information after you apply. An Admission Information Form is also required. We will send you instructions when we acknowledge your application. Also considered: Involvement in extracurricular activities in school or community, evidence of interest in engineering and strong performance in mathematics, science or engineering-related competitions. Usually closes before January 15	Marks only
Co-op	Available	Available	Available
Degree	—	—	Bachelor of Engineering (Co-op), BEng (Co-op), Bachelor of Science/Bachelor of Applied Science, BSc/BASc
First-year intakewhere published	550	75	—
What you study	Animal ScienceAstronomyBiological SciencesChemistry	Biological SciencesChemical EngineeringCivil EngineeringEnvironmental Studies	Chemical EngineeringChemistryComputer ScienceGeneral or Integrated Engineering
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.	You study how to design systems and structures that protect the environment and manage natural resources — combining biology, chemistry, civil engineering, and earth science. Unlike a general engineering program, this one focuses specifically on water treatment, waste management, air quality, and land remediation. It suits students who want to solve real environmental problems with engineering tools and are willing to do mandatory work terms alongside their studies.	You study both chemical engineering — how to design and optimize chemical processes and manufacturing at industrial scale — and computer science, learning to build software and computational systems. The five-year structure and mandatory co-op terms give you paid work experience alongside your degree, letting you apply both skillsets in real industrial settings. This suits students who want to bridge chemistry and coding rather than choose one, and who value hands-on experience while earning.
The door tomajors you reach through it	biologychemistryearth scienceenvironmental sciencelife sciencesmathematicsphysicsstatistics	Applied to directly	Applied to directly
Entrance awardsat this campus, by average	6 published, 5 with no applicationfrom 85%See them	4 published, 3 with no applicationfrom 80%See them	22 published, 5 with no applicationfrom 75%See them
Source	Western University on OUInfo	University of Waterloo on OUInfo	University of Ottawa 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.