2. What is the result and evidence of changes in the Earth’s crust?

3. GRADUAL OR SUDDEN!  Changes in the Earth’s crust can be categorized into either: 1) Gradual changes – small changes or large changes that occur very slowly over many thousands of years p373-374, p376-378, p412-414 2) Sudden changes – large changes that occur very quickly p395 -396, p398-399, p403-405, p406-407,

4. GRADUAL OR SUDDEN!  Make a chart in your notes to compare gradual and sudden changes.  Be ready to explain a reason for your classification based on evidence.

5. Welcome to everyone’s favourite game show….

6. GRADUAL or SUDDEN

7. The object of this game, is to classify the following examples as sudden or gradual. Each team will send up a representative to write their answer on a white board. 10 points for a correct answer and -20 points for an incorrect answer. LET’S PLAY!

8. GRADUAL OR SUDDEN!

9. Mechanical Weathering

10. GRADUAL OR SUDDEN!

11. Chemical Weathering

12. GRADUAL OR SUDDEN!

13. Biological Weathering

14. GRADUAL OR SUDDEN! Glaciers

15. GRADUAL OR SUDDEN!

16. Abrasion

17. GRADUAL OR SUDDEN! Rock slides

18. GRADUAL OR SUDDEN!

21. Landslides

22. GRADUAL OR SUDDEN!

25. Erosion

26. GRADUAL OR SUDDEN!

33. For the following slides, indicate if it is showing gradual or sudden change. To get proficient, explain how you know what kind of change it is. To get mastery, explain the change and use an example to support your explanation.

34. GRADUAL OR SUDDEN!