| Definition |
Vocab Word |
| The decayed remains of dead plants and animals in soil. | Humus |
| The layer of bits of rocks and humus found on Earth's crust. | Soil |
| A type of soil with very small grains and small spaces between them. | Clay |
| The top layer of soil. | Topsoil |
| Rich soil with lots of humus. | Loam |
| A material found in nature that living things use. | Resource |
| Saving resources by using them carefully. | Conservation |
| Planting strips of different crops next to each other. | Strip Cropping |
| Planting rows of crops around hills instead of up and down their sides. | Contour Plowing |
