ap environmental science - soil formation & composition

timestamps

• 0:00

  Introduction to Soil

• 0:31

  Poll and Topic Overview

• 1:01

  Live Stream Topics

• 2:03

  CED Soil Content

• 3:37

  Soil Formation Steps

• 4:38

  Weathering and Depositing

• 5:40

  Organic Material Addition

• 6:42

  Layers Building Up

• 7:43

  Practice Question on Weathering

• 9:18

  Soil Horizons Explained

• 10:57

  Top-Down Horizon View

• 11:58

  E Horizon Details

• 13:00

  Organic Matter Trends

• 14:01

  Practice Question on O Horizon

• 16:08

  Soil Particle Sizes

• 17:41

  Water Retaining Properties

• 19:13

  Permeability and Porosity

• 20:48

  Aeration and Nutrients

• 22:56

  Soil pH Impact

• 24:32

  Clay Particle Clarification

• 25:35

  Practice Question on Pond Soil

• 26:42

  Soil Horizon Permeability

• 28:20

  Permeability Trend Question

• 28:52

  Soil Texture Triangle Intro

• 29:55

  Triangle Lines Explanation

• 31:29

  Example Soil Classification

• 33:05

  Practice Triangle Question

• 35:50

  Water Retention Question

• 37:25

  Soil Degradation Types

• 40:01

  Desertification Causes

• 41:37

  Water Logging Explanation

• 43:11

  Salinization Effects

• 45:47

  Practice Degradation Question

• 47:22

  Soil Horizons in Biomes

• 50:28

  Desert Soil Horizons

• 51:32

  Desertification Scenario

• 54:52

  Q&A Session

• 57:00

  Coniferous vs Deciduous Forests

• 58:37

  Closing Remarks