Across
- 3. Rock rocks formed by cooling magma
- 5. Weathering weathering by chemical reactions
- 8. wearing away by wind, rock, water, etc
- 9. dark, organic matter that gives soil its richness
- 12. dropping off weathered material
- 13. very small soil particles, fine and smooth
- 14. Weathering physically breaking down rocks without changing their chemical composition
- 16. Cycle the process by which rocks are created, broken down, and transformed
- 17. Horizon layers of soil with distinct characteristics
- 18. how light reflects off a substance
- 20. the top layer of Earth's surface, made of organic and inorganic materials
Down
- 1. larger soil particles, coarse and gritty
- 2. solid, inorganic substance
- 4. Rock formed when sediment is compacted
- 6. rich in nutrients and able to support plant growth
- 7. carrying away of weathered material
- 10. the color of powdered rock
- 11. Rock formed when rocks are changed
- 15. Hardness Scale a scale that measures the hardness of rocks and minerals
- 17. medium-sized soil particles, between sand and clay
- 19. Profile a vertical cross-section showing the soil's layers