3 programs, side by side

+ Add a program	BU Brock Earth Sciences OUAC BX ☆ Add to planRemove	Guelph Bachelor of Science in Environmental Sciences (BS [Env]) (co-op option) OUAC GEA ☆ Add to planRemove	York (Glendon) Biology (BSc, iBSc) OUAC YYF ☆ Add to planRemove
Your average, their wayrequired courses forced in
Published rangetheir exact wording	73–77%“Mid 70s”	75–80%“75 to 80%”	73–80%“Mid to high 70s”
Required coursesforced into your top 6 — options are the row below	ENG4U	ENG4UMHF4USBI4USCH4USPH4U	ENG4UFRA4UMHF4USBI4USCH4U
Choose one ofany of these satisfies it	one of MCV4U, MHF4U two of SBI4U, SCH4U, SES4U, SPH4U	—	—
Prerequisitesas published	ENG4U MHF4U or MCV4U 2 from SBI4U, SCH4U, SPH4U, SES4U, or a second 4U Math Alternative Offers You will receive an offer of admission to only 1 program. Your highest listed choice is considered first when you indicate more than 1 Brock program on your application. If you are not eligible for your first choice, your subsequent choices will be considered in your indicated order of preference. In most cases: If you apply to only 1 Brock program but do not qualify, you will be considered for an alternative or related program. If you apply but are not admitted to a co-op program, you will automatically be considered for the regular, non-co-op program.	ENG4U MHF4U 2 4U Science courses 2 additional 4U/M courses Acceptable 4U science courses include Biology (SBI4U), Chemistry (SCH4U) and Physics (SPH4U. Completion of Biology and Chemistry is recommended.	Ontario Secondary School Diploma (OSSD) ENG4U (FRA4U for Francophone applicants) SBI4U SCH4U MHF4U +7 more on the program page
More than marks?supplementary application	Marks only	Marks only	Marks only
Co-op	Available	Available	No
Degree	—	—	Bachelor of Science, BSc, International Bachelor of Science, iBSc
First-year intakewhere published	—	—	—
What you study	Environmental StudiesGeology	Biological SciencesChemistryEconomicsEnvironmental Studies	Animal ScienceBiological SciencesBiologyBiotechnology
What it is	Earth Sciences is a study of rocks, minerals, Earth's structure, and environmental systems — how the planet works and how humans interact with it. The program includes a co-op work placement component, meaning you alternate between classroom study and paid work terms at companies or organizations in geology and environmental fields. It suits students curious about natural systems and interested in learning through hands-on experience in the workplace.	Environmental sciences combines biology, chemistry, economics, and Earth systems to understand how environments work and how human activity affects them. The co-op option lets you alternate between study terms and paid work placements with environmental organizations, government agencies, or companies, giving you real experience alongside your degree. This program suits people who want practical skills in environmental problem-solving and prefer learning through both classroom study and workplace application.	A Biology degree at Glendon lets you study how living things work, from cells and molecules to whole organisms and ecosystems. You'll take core biology courses and choose from specialized areas like genetics, microbiology, human biology, or biotechnology. The iBSc variant integrates bilingual (English–French) instruction throughout your degree, rather than offering biology taught only in English.
The door tomajors you reach through it	earth science	earth scienceenvironmental science	Applied to directly
Entrance awardsat this campus, by average	4 published, 1 with no applicationfrom 80%See them	12 published, 4 with no applicationfrom 75%See them	13 published, 4 with no applicationfrom 75%See them
Source	Brock University on OUInfo	University of Guelph on OUInfo	York University — Glendon 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.