Course record Geology
Geology 121
The History of the Earth
Southern Illinois University-Carbondale
115 grades3 sections2 professors
Grades: 2023–2025
Flunk Score13/100
Needs work
Grade record
2.83
average GPA across 115 grades
68%
A or B
of 115 grades
19.0%
D, F or withdrew
of 121 enrolled
34.8%
A
40
33.0%
B
38
17.4%
C
20
9.6%
D
11
5.2%
F
6
5.0%
W
6
A–F are shares of 115 letter grades · W is a share of all 121 enrolled
How the averages compare
Against other Geology courses, and against the university
- 2.83Geology 121
- 3.08Geology courses
- 3.28School average
Average GPA · Zoomed GPA scale
Lower averageHigher average
Lower averageHigher average
3 sections · 3 terms · Fall 2023 – Fall 2025
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