2. INVOLVES 4 BIG items: –______________ –______________________ –________ –____________________

3. INVOLVES 4 BIG items: –Rain Water –______________________ –________ –____________________

4. INVOLVES 4 BIG items: –Rain Water –Carbon Dioxide----CO2 –________ –____________________

5. INVOLVES 4 BIG items: –Rain Water –Carbon Dioxide----CO2 –Oxygen –____________________

6. INVOLVES 4 BIG items: –Rain Water –Carbon Dioxide----CO2 –Oxygen –Acids of plant decay

7. Reaction of ______ with other substances Feldspar to ______ (Kaolinite)

8. Reaction of water with other substances Feldspar to ______ (Kaolinite)

9. Reaction of water with other substances Feldspar to Clay (Kaolinite)

10. ________ reacting with other substances Makes _____

11. Oxygen reacting with other substances Makes _____

12. Oxygen reacting with other substances Makes rust

13. Dissolved ________________ Attacks ____________ buildings and statues _______________ combine with water

14. Dissolved CO2 in water Attacks ____________ buildings and statues _______________ combine with water

15. Dissolved CO2 in water Attacks limestone buildings and statues _______________ combine with water

16. Dissolved CO2 in water Attacks limestone buildings and statues CO2 and sulfur combine with water

18. Weathering takes place at a faster rate in __________________ than in cool climates. Chemical reactions are more active at ________ temperatures. ________ minerals weather faster than _________ minerals Quartz - _______ Calcite – _______

19. Weathering takes place at a faster rate in warm climates than in cool climates. Chemical reactions are more active at ________ temperatures. ________ minerals weather faster than _________ minerals Quartz - _______ Calcite – _______

20. Weathering takes place at a faster rate in warm climates than in cool climates. Chemical reactions are more active at higher temperatures. ________ minerals weather faster than _________ minerals Quartz - _______ Calcite – _______

21. Weathering takes place at a faster rate in warm climates than in cool climates. Chemical reactions are more active at higher temperatures. Softer minerals weather faster than _________ minerals Quartz - _______ Calcite – _______

22. Weathering takes place at a faster rate in warm climates than in cool climates. Chemical reactions are more active at higher temperatures. Softer minerals weather faster than harder minerals Quartz - _______ Calcite – _______

23. Weathering takes place at a faster rate in warm climates than in cool climates. Chemical reactions are more active at higher temperatures. Softer minerals weather faster than harder minerals Quartz - Slow Calcite – _______

24. Weathering takes place at a faster rate in warm climates than in cool climates. Chemical reactions are more active at higher temperatures. Softer minerals weather faster than harder minerals Quartz - Slow Calcite – Fast

25. The rate of weathering is what makes cliffs have __________ appearances.

26. The rate of weathering is what makes cliffs have stepped appearances.