1. RAP: 1.Any naturally preserved evidence of life ___________. 2. _________ cause erosion by logging, mining, farming, and construction. (humans or animals)

2. Description wheel for soil page 4 Soil Is made of Source of it Topsoil contains Factors that affect formation

3. Key Questions 1. What is erosion? 2. What human activities cause erosion? 3. What is logging? 4. What is mining? 5. What is farming? 6. What is construction?

4. 1. Erosion is the natural movement of sediment from one place to another

5. 2. What human activities cause erosion? 2. Humans cause erosion by logging, mining, farming, and construction.

6. 3. What is logging? Clear Cutting-cutting down all trees in an area 1. Cut down tree 2. Roots die and decay 3. Nothing left to anchor soil 4. rain washes soil away

7. 4. What is mining? Strip Mining-remove surface Open Pit-cut large pits Remove plant roots that anchor soil Open pit Strip mining

8. 5. What is farming? Farming- Dust Bowl- 1. removed grasses 2. Planted wheat 3. drought-little or no rain 4. wheat died 5. wind blew soil away 6. only dust left

9. 6. What is construction? Clear land and remove roots that anchor soil

10. Homework: Copy and answer Don’t forget summary 1.List the main activities that affect soil resources. 2. What effect does logging have on soil? 3. What effect does mining have on soil? 4. What happened with the Dust Bowl?