1. What type of weathering caused the rock to break?

1. 2. What type of weathering caused the formation of the stalactites and the stalagmites? 1. What type of weathering caused the rock to break? Mechanical weathering Ice-wedging, freeze thaw Chemical weathering Rock chemically changing What is happening in the picture? How can you prevent this? 3. What type of weathering caused the rocks to break? Mechanical weathering Tree root getting bigger Mechanical weathering, Wind erosion Planting trees

2. Weathering Chemical weathering Mechanical weathering Erosion Chemical weathering Acid precipitation Physical weathering Water Erosion Mechanical/Physical weathering Acid precipitation Gravity Chemical weathering Wind Ice wedging Water Chemical weathering Ice Weathering Ice wedging Wind, Water, Ice, Gravity

3. Vocabulary Writing on mini white board I give the definition, you write the vocabulary word on the mini-board. Example 1 Weathering

4. 2 Mechanical weathering

5. 3 Acid Precipitation

6. 4 Erosion

7. 5 Ice wedging or Freeze-thaw

8. 6 Chemical weathering

9. 7 Chemical weathering

10. 8 Water

11. 9 Chemical weathering

12. 10 Wind, Water, Ice, Gravity

13. Mechanical Weathering Chemical Weathering or Look at each picture and decide if it is an example or chemical weathering or mechanical weathering Ch Chemical Use white board: And write M Mechanical

14. Mechanical Weathering Chemical Weathering or Ice Wedging

15. Mechanical Weathering Chemical Weathering or Stalactites Stalagmites The rocks have changed to Stalagmites and Stalactites

16. Mechanical Weathering Chemical Weathering or Ice Wedging

17. Mechanical Weathering Chemical Weathering or The iron in the soil is rusting (changing)

18. Mechanical Weathering Chemical Weathering or Tree roots expanding

19. Mechanical Weathering Chemical Weathering or The iron nails are rusting (changing)

20. Mechanical Weathering Chemical Weathering or “Dust Bowl” Wind weathering and erosion

21. Mechanical Weathering Chemical Weathering or Brown area “Lichens” growing on the rock and changing the surface

22. Mechanical Weathering Chemical Weathering or Both chemical and mechanical: Tree roots, water, acid, everything

23. Mechanical Weathering Chemical Weathering or The metal is rusting (changing)