- Then, review the findings: Profile C has a moderately thick top layer (A Horizon) with some organic matter. Below it is a layer with large, distinct particles and a noticeable white spot, which indicates the B Horizon where minerals have accumulated (illuviation). The bottom layer is the C Horizon (Parent Material). This profile shows evidence of mineral deposition in the subsoil.
- Finally, synthesize the answer: Based on the analysis of all three profiles against the standard soil horizon model, the solution to the problem is to identify and compare the characteristics of each profile.
- Profile A represents a mature, well-developed soil with a thick, nutrient-rich topsoil (A Horizon), indicating good conditions for plant growth.
- Profile B represents a soil that has undergone significant leaching, with a thin topsoil and a thick, light-colored subsoil (B Horizon), suggesting a climate with high rainfall or poor drainage.
- Profile C represents a soil with evidence of illuviation, where minerals have been deposited in the subsoil (B Horizon), creating a distinct layer with larger particles and possible accumulation of clay or other materials.
Parent Tip: Review the logic above to help your child master the concept of weathering and soil formation worksheet.
