Geologic Evolution of the Earth
GEOSCI 204 covers the physical evolution of the Earth and its relationship to the development of life through geologic time.
Summary
Historical reviews of Clay Kelly: Reviewers rated the difficulty as low to moderate, with Clay Kelly providing engaging lectures and being happy to answer questions after class.
Grade history
↗letter grades
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Prerequisites
Course mapGEOSCI 100 or ENVIR ST/GEOSCI 106
“Used by” includes alternatives; linked courses may have other requirements. This is a best-effort interpretation; check the catalog requirements above.
Prerequisite text tree
Professors
Fall 2026No instructors recorded for this selection.
Historical instructors & teaching patterns
Historical reviews for Clay Kelly describe him as engaging and helpful, with students noting his willingness to answer questions after class. He is characterized as a cool instructor who makes the course material on earth history interesting.
CLAY KELLY is recorded teaching in Spring 2011, Spring 2012, Spring 2013, Spring 2014, Spring 2015, Spring 2016, Spring 2017, Spring 2018, Spring 2019, Spring 2020. Recorded history may be incomplete and does not establish a future schedule.
Recorded history may be incomplete and does not establish a future schedule.
Calendar & sections
Fall 2026Schedule loads here as you scroll.
| Section | Mode | Enrolled / capacity | Waitlist |
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Times are Central. Select a meeting for details; export includes recorded dates for the selected sections.
Meeting source records
No records available.
Student experience
the class
Historical reviews describe GEOSCI 204 as an interesting course covering earth history, taught by Clay Kelly, who provided engaging lectures and was willing to help students.
Recent recorded grades — Spring 2024: 2.77 GPA, 28.6% A/AB (n=28 letter grades); Spring 2025: 3.32 GPA, 68.2% A/AB (n=22 letter grades); Spring 2026: 2.75 GPA, 20.0% A/AB (n=20 letter grades).
difficulty & workload
Historical reviews of Clay Kelly: Reviewers rated the difficulty as low to moderate, with Clay Kelly providing engaging lectures and being happy to answer questions after class.
Historical reviews of Clay Kelly: Students found the class interesting and appreciated the instructor's willingness to answer questions after class, describing him as helpful and cool.
Topics
Grades
Latest available · Spring 2026— not enough history to project Fall 2026.
Grade distribution · % of letter grades
Grades over time
Through Spring 2026
More grade details Grade mix, volume & source data
Not enough comparable courses for Fall 2026 in UW–Madison.
Sources & history
Catalog & offerings
Descriptions, prerequisites, and recorded course offerings.
Catalog observation history
Observations at scan time; dates do not imply when a catalog change took effect.
Selected offering source records
No offering records for the selected term.
Raw records
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Student reviews
Original comments behind the course and instructor summaries.
Read original reviews
Grade history
Recorded grade distributions by term, section, and instructor.
Explore recorded gradesModel outputs & technical records
LLM outputs across runs
Full model traces
Recorded model configuration, reasoning, and tool conversations.
Model & dataset provenance
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"model_revision": "1355db6a052410cfd62085d94b58866fd0f2c3c5",
"task_version": "14",
"output_id": "f981258f3a04d9000c6a22fccea50e7b2b249f5935e4cb62f644a3ce129117ce",
"requirements_status": "valid",
"dataset_revision": "e243353dcb7d79b7247ced91d69443ef4c2a6349",
"observed_at": "2026-09-07 15:55:43.033547+00:00"
}