Across
- 3. two words, process that breaks down rock through chemical changes
- 5. decayed organic material in soil
- 6. agent of chemical weathering, H2O
- 12. the process that breaks down rock and other substances at Earth's surface
- 14. material full of tiny, connected air spaces
- 15. loose, weathered material on Earth's surface which plants can grow
- 16. rock made up of feldspar, quartz, and mica
- 18. worm that mixes humus with other materials in the soil
- 19. grinding away of rocks by rock particles
- 21. two words, agent of chemical weathering, CO2
Down
- 1. crumbly, dark brown soil that is a mixture of humus, clay, and other minerals
- 2. refers to the average weather conditions in an area
- 4. two words, type of weathering in which rock is physically broken into smaller pieces
- 7. the movement of rock particles by wind, water, ice, or gravity
- 8. organisms that break the remains of dead organism into smaller pieces
- 9. loose layer of leaves shed from plants
- 10. two words, wedges of ice widen and deepen cracks
- 11. solid layer of rock beneath the soil
- 13. two words, layer of soil that differs in color and texture from layers above it
- 15. B horizon soil, consists of clay and other particles
- 17. depends on the size of individual soil particles, can be coarse, grainy, smooth, silky
- 20. soil made of clay, sand, and silt
- 21. chemical weathering causes granite to become this