| Title | Comment | Keywords |
|---|---|---|
| Impact Craters | 07:05 - 07:56 (00:51) / 1.7 MB | "impact crater", meteorite |
| What Were the Materials that Formed Earth | 09:55 - 10:58 (01:03) / 1.3 MB | asteroid, meteorite |
| Differentiation Occurred Early | 12:52 - 13:35 (00:43) / 0.6 MB | differentiation, meteorite |
| Depositional Environment | 18:26 - 19:30 (01:04) / 1.4 MB | "Chester C. Langway Jr.", "Ice Age", landscape, glacier, "glacial ice", snowfall, deposition, "glacial environment", "ice sheet", "atmospheric process", atmosphere, pollen, "volcanic ash", meteorite, "ancient air bubble", climate |