How to look at (dig) soil to view soil layers (horizons).
| Grade | Discipline | Core Idea |
|---|---|---|
| 3-5 | ESS2.A: Earth materials and systems |
Four major Earth systems interact. Rainfall helps to shape the land and affects the types of living things found in a region. Water, ice, wind, organisms, and gravity break rocks, soils, and sediments into smaller pieces and move them around. |
| 3-5 | ESS3.A: Natural resources |
Energy and fuels humans use are derived from natural sources and their use affects the environment. Some resources are renewable over time, others are not. |
| PreK-2 | ESS2.A: Earth materials and systems |
Wind and water change the shape of the land. |
| PreK-2 | ESS3.A: Natural resources |
Living things need water, air, and resources from the land, and they live in places that have the things they need. Humans use natural resources for everything they do. |