| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | canyon | geological perspective | Canyons are formed by the erosion of rock by rivers over long periods of time. | 1 |
| 2 | river | geological perspective | Rivers are shaped by erosion and sediment deposition over millions of years from a geological perspective. | 1 |
| 3 | rocks | geological perspective | Rocks are categorized as igneous, sedimentary, and metamorphic based on how they are formed and their characteristics. | 1 |