3 programs, side by side

Rows marked with a dot are where these differ. Everything is each university’s own published wording; the “your average” row is yours, calculated the way each program does it.

	Ontario Tech Data Science (Co-op) OUAC DMO Remove	Western Science OUAC ES Remove	Waterloo Environmental Engineering (Co-op Only) OUAC WEE Remove
Your average, their wayrequired courses forced in
Published rangetheir exact wording	83–87%“Mid-80s”	80–87%“Low to mid 80s”	83–90%“Mid- to High 80s”
Required coursesforced into your top 6 — options are the row below	ENG4U ICS4U MHF4U	ENG4U MCV4U	ENG4U MCV4U MHF4U SCH4U SPH4U
Choose one ofany of these satisfies it	one of MCV4U, SPH4U	two of ICS4U, MDM4U, MHF4U, SBI4U, SES4U, SPH4U	—
Prerequisitesas published	Six 4U/M credits, including English (ENG4U) Advanced Functions (MHF4U) One of Calculus and Vectors (MCV4U), Physics (SPH4U) or Computer Science (ICS4U). We recommend you take all 3 of these courses. A combined minimum 70% average in prerequisite computer science, math and science courses is required.	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%)
More than marks?supplementary application	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	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
Co-op	Available	Available	Available
Degree	Bachelor of Science (Co-op), BSc (Co-op), Bachelor of Science and Management (Co-op), BSc&Mgt (Co-op)	—	—
First-year intakewhere published	140	550	75
What you study	Computer Science	Animal Science Astronomy Biological Sciences Chemistry	Biological Sciences Chemical Engineering Civil Engineering Environmental Studies
What it is	You study how to extract useful patterns and insights from large sets of data using computer science, mathematics, and statistics. The Co-op version requires you to complete paid work terms at companies throughout your degree, giving you real-world experience alongside your coursework. The Management option adds business and organizational courses if you want to lead data projects or work in strategy rather than focus purely on technical analysis.	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.
The door tomajors you reach through it	Applied to directly	biology chemistry earth science environmental science life sciences mathematics physics statistics	Applied to directly
Entrance awardsat this campus, by average	3 published, 3 with no applicationfrom 85%See them	6 published, 5 with no applicationfrom 85%See them	4 published, 3 with no applicationfrom 80%See them
Source	Ontario Tech University on OUInfo	Western University on OUInfo	University of Waterloo on OUInfo

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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.