| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S04E01 | Minerals: The Materials of Earth |
May 4, 1992
PBS
|
30 | |
| S04E02 | Volcanism |
May 11, 1992
PBS
|
30 | |
| S04E03 | Intrusive Igneous Rocks |
May 18, 1992
PBS
|
30 | |
| S04E04 | Weathering and Soils |
May 25, 1992
PBS
|
30 | |
| S04E05 | Mass Wasting |
June 1, 1992
PBS
|
30 | |
| S04E06 | Sedimentary Rocks: The Key to Past Environments |
June 8, 1992
PBS
|
30 | |
| S04E07 |
Metamorphic Rocks
season finale
|
June 15, 1992
PBS
|
30 |
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No artwork of this type.
No artwork of this type.