University of Toronto Mississauga
ERS201H5
Earth Materials
What was the average?
C+
2.3 GPA across 2 observed terms. Most recent: Fall 2022.
How is it graded?
35% final
From the Fall 2026 syllabus. 28 graded components.
How confident is this?
Med
A small number of terms, so read it as a range. The most recent observation is several years old.
From the calendar
Official source · University of Toronto MississaugaThis course examines the complex nature of minerals and crystals from a geological, physical and chemical perspective and introduces the petrology of volcanic, intrusive, metamorphic, and sedimentary rocks.
- Exclusions
- EESC35H3ESS221H1ESS321H1
- Contact hours
- 24 lecture · 36 practical
- Total scheduled hours for the course, not per week.
What people actually got
Last observed Fall 20222 terms observed
This is a student-contributed aggregate, not an official University of Toronto record. It is also not a measure of how hard the course is — a course average moves with who enrols in it, not only with the material.
The newest observation is from Fall 2022. Instructors, weighting and exam format may all have changed since — treat this as history, not a forecast.
This rests on 2 reported terms. It is shown because hiding it would not make it less true, but one or two results are a datapoint, not a distribution — a single unusual cohort moves this number a long way.
Where the marks come from
Fall 2026 syllabusExtracted from a published Fall 2026 syllabus — verified against the university's own document. Components that could not be labelled are shown unresolved rather than folded into a neighbouring category.
- lowest 1 lab(s) dropped
- lowest 2 homework(s) dropped
- must score >= 80% on the lab to pass
What we don’t have yet
Source ledger
Report an error →| Claim | Source | Captured | Status |
|---|---|---|---|
| Course description, prerequisites, exclusions, contact hours | University of Toronto Mississauga | 2026-07-25 | public fact |
| Historical average across 2 terms | Student contributions, consented | 2026-07-25 | user contributed aggregate |
| Grading structure, description and credit weight from the official Fall 2026 syllabus (instructor: J. Umbsaar) | Official Fall 2026 course syllabus (University of Toronto Mississauga) | 2026-09-05 | official syllabus |
Page last verified 2026-09-05. A claim whose source moves is withdrawn before it goes stale.
What this opens up
13 courses list ERS201H5 as a prerequisiteThe other 12 have no page yet. Listing a course here means it names ERS201H5 among its prerequisites — often as one of several ways to satisfy the same requirement, so this is what ERS201H5 makes available, not what it alone guarantees.
You’ve read the average. Now use it.
Add ERS201H5 and the Fall 2026 weighting loads with it — Pyko tracks what you've earned and solves for what the final has to be.
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