EARTH 121LIntroductory Earth Sciences Laboratory
- Units
- 0.25
- Faculty
- Science
- Subject
- Earth Sciences
When it runs
- F24
- W25
- S25
- F25
- W26
- S26
- F26
- W27
- S27
Ran in 4 of the last 7 terms. Winter 2027: not on the schedule. Spring 2027: schedule not out yet.
For students taking EARTH 121. Laboratory exercises cover selected topics from EARTH 121 lectures.
Prerequisites
None listed.
Corequisites
- Completed or concurrently enrolled in:
- EARTH121 - Introductory Earth Sciences (0.50)
Antirequisites
None listed.
Leads to
Fall 2026 sections
| Section | Class | Enrolled | Meets |
|---|---|---|---|
| LAB 001 | 6972 | 35 / 40 | M 11:30–14:20 |
| LAB 002 | 6973 | 40 / 40 | F 14:30–17:20 |
| LAB 003 | 6974 | 34 / 40 | Th 08:30–11:20 |
| LAB 004 | 7106 | 33 / 40 | F 08:30–11:20 |
| LAB 005 | 7173 | 39 / 40 | W 11:30–14:20 |
| LAB 006 | 7258 | 36 / 40 | Th 14:30–17:20 |
Reviewed on UW Flow
84% liked it87% easy72% useful
From 105 ratings and 18 comments on UW Flow. The most helpful comments, quoted as written, without names. Read them all on UW Flow.
Keith Delaney is an exceptional lab instructor for this class! I loved attending even though it was an 8:30 am class! He is so funny and clearly explains the material. You can ask him questions throughout the class and he enthusiastically can help you work through any material you don't understand. I highly recommend doing the readings before class because it helps you get through the lab so much faster.
Feb 2026 · liked it · 1 found this helpfulOn UW FlowRemove this
birdy, keith is a saint, get cake on the final lab
Dec 2025 · liked it · 1 found this helpfulOn UW FlowRemove this
Was not expecting to enjoy rocks as much as I did in this course. Keith is the goat!
Oct 2025 · liked it · 1 found this helpfulOn UW FlowRemove this
Delaney was awesome! This really helped solidify information from the course, mostly the rock sections.
Dec 2024 · liked itOn UW FlowRemove this
You learn wayyyyyyy more in this one than 121. Dr. Delaney is the goat. TA's help a lot also. Course did kind of fall off after rock and mineral identification though. Got to eat cake in one of the labs 😎
Dec 2024 · liked itOn UW FlowRemove this
Discussed on r/uwaterloo
12 posts and comments in 10 threads mention EARTH 121L, October 2017 to December 2024. Quoted word for word, newest first; each reply sits under the post and the comment that started its branch. Search r/uwaterloo for newer posts.
Fall 2023
EARTH121L Exam 3 points, 4 comments
u/chomnks7: “I have the Eearth121L exam coming up this week. Can someone plz give advice on how to study for this, and if u remember, what kind of questions they ask/topics I should focus on? Thanks so much!”
does anyone know some easier elective courses with labs (0.25) 3 points, 2 comments
“does anyone know some easier elective courses with labs (0.25)?”
u/EV2_Mapper: “EARTH121 + EARTH121L EARTH122 + EARTH122L”
Fall 2021
Do labs have to be with lectures 1 point, 1 comment
“If I have already taken the lecture for a lab class, can I take the lab by itself in another term or would I have to redo the lecture to take the lab. For example I'm currently in Phys 111 lecture. …”
u/EV2_Mapper: “I'm currently taking EARTH121L a year after taking EARTH121 so no”
Winter 2021
Bird 0.25 credit courses 2 points, 4 comments
u/notafrosh: “I am looking for 0.25 credit courses offered this term. I took a lab last term so I'm searching for another half-credit course so that I can meet my degree requirement. I already took EARTH 121L. Any bird courses you would recommend?”
Fall 2019
No seating assigned? 2 points, 2 comments
u/KyleLawry: “For EARTH 121 and EARTH 121L final, it says it in the PAC gym but theres no assigned seating. Should I be worried?”
Are lectures required to take the lab? 3 points, 1 comment
u/CBooy: “Looking to drop my online EARTH 121 course, but I want to stay in the lab (EARTH 121L). Am I able to do this? Are lecture components mandatory to take the lab?”
u/lookitsabubble: “From the calendar, it looks like you can stay in the lab and drop the lecture. Some labs are mandatory with the lecture but others are only recommended, like this one.”
Spring 2019
EARTH 121/ EARTH 121L: Should I take the lab along with the lecture? 2 points, 2 comments
Pls ignore 1 point, 15 comments
u/Sinapi12: “earth 121 CHEM 123 EARTH 121L SCCOM 100”
u/Sinapi12: “earth 121 CHEM 123 EARTH 121L SCCOM 100”
Spring 2018
Calling the Geologists! Anyone here done EARTH 121L? Also why is trying to find a syllabus so hard? 5 points, 1 comment
u/Gneiss_Gal: “I did a couple years at Waterloo in 2015-2016 and made the grand mistake of not hanging on to my syllabi for future reference. Phsych is super awesome, the faculty keeps all theirs online and it's super easy to find. Sciences on the other hand, seem to depend on the Prof. …”
Fall 2017
Any way to disable UWCourseLinker from posting? 16 points, 26 comments
“posting a reply to my comment I find the bot annoying.”
u/Jackhofmann: “PSYCH 483 PSYCH 484 PSYCH 485 PSYCH 486 PSYCH 490R PSYCH 499A PSYCH 499B PSYCH 499C PSYCH 621 PSYCH 630 PSYCH 677A PSYCH 704A PSYCH 704B PSYCH 707 PSYCH 710 PSYCH 714 PSYCH 717 PSYCH 720A PSYCH 721A …”
u/Jackhofmann: “… DRAMA 386 DRAMA 400 DRAMA 406 DRAMA 416 DRAMA 490 DRAMA 491 DUTCH 101 DUTCH 201 EARTH 121 EARTH 121L EARTH 123 EARTH 123L EARTH 231 EARTH 235 EARTH 260 EARTH 331 EARTH 342 EARTH 421 EARTH 436A EARTH 436B EARTH 440 EARTH 444 EARTH 458 EARTH 458L EARTH 461 EARTH 499 EARTH 625 …”
Check it elsewhere for Fall 2026
- Undergraduate Calendar, 2026–27The official entry
- Requirements for Fall 2026Waterloo’s requisite checker
- Schedule of Classes, Fall 2026Instructors, rooms, live seats
- Quest Class SearchWhere you enrol
- Course outlinesSyllabi from past terms (UW login)
- UW FlowStudent ratings and reviews
- WClassesPast sections back to 2004, and who taught them