Soil Review - Environmental Science

2. the thing that is changed thanks to erosion and weathering
4. a nutrient-rich type of dirt that shares a name with a middle eastern chickpea dish.
6. How easily water can move through soil
11. A technique that plants trees in between large, flat fields to prevent wind erosion.
13. What is done with corn and soybeans to keep nutrients in the soil; a sustainable farming practice that prevents soil damage
14. a 3D art medium and the smallest particle type found in soil
18. a type of fertilizer made from feces and decayed plants and animals that adds nutrients to soil
19. the process that removes weathered material via wind or water
20. the process that breaks down rocks into smaller pieces that are moved via erosion
21. The amount or percent of space between particles in soil
23. the second layer of dirt that contains decayed and living organisms and roots; topsoil

1. the perfect mix of all three particle sizes that is very good for plant growth
3. the process in which humans, animals, or machinery push down soil, compressing the layers
5. Unsustainable _______ practices can damage and destroy soil.
7. something humans and soil needs and is found in our atmosphere
8. Topsoil is a ______ resource but that doesn't mean we should misuse it!
9. the process where water removes nutrients from soil and into other bodies of water or lower horizons of soil
10. the largest of the particles that holds no water and no nutrients
12. called "subsoil" and is below the topsoil. Nutrients from above are leached down into this layer.
15. the mix of different sizes of particles in a soil sample
16. the bedrock at the very bottom of all layers
17. the middle of the three particle sizes that holds a decent amount of water and nutrients
22. the first layer of soil that is mostly leaf litter and organic material