Review: Erosion/ Deposition Main Topics: Ground Water Soil Horizon Weathering Erosion Deposition Glaciers Water NY Landscapes

How does Groundwater work?                                                                                Water falls to the ground and infilitrates the soil. It finally stops when it hits the bedrock.

Characteristics of the soil Permeability: How quickly water passes through a surface (Larger the better) Porosity: open space in the soil (size doesn’t matter) Capillarity: upward movement of water in the ground (Smaller the better) Runoff: water found on the surface

What is the soil horizon? Soil Horizon is a profile of the ground and how the bedrock is transformed into fertile soil. A: Topsoil: Fertile: Humus/ organic materials B: Middle: Mineral Enriched C: Bottom Solid Bedrock

What is weathering? Breakdown of a substance. Physical-smaller pieces Climate: Cold & Moist Chemical- change Climate: Warm & Moist

What is Erosion? Erosion: Movement of materials Chief Agent: Water Rivers move sediments Table pg6 Move fastest in straight middle Curve fastest outside bend

ESRT pg 6

What is deposition? Deposition:Settling of Sediments Factors: Size, Shape, Density Horizontal: Largest sediments closest to the mouth Vertical: Largest sediments on the bottom

How are landscaped shaped? By the deposition and erosional processes.

How do places that were affected by Glaciers Look? Glaciers: Unsorted sediments in ground Rocks have striations (Scratches) Valleys are “U” Shaped

How do places that were affected by water look? Water: Sediments sorted. Either vertical or horizontally Sediments are smoother, rounder and smaller Valleys are “V” Shaped