1. Plate Tectonics Objectives:
Explore the process of tectonic plate movement by describing and drawing the causes of plate movement and comparing it to the evidence found.
Think critically by analyzing the evidence for continental drift theory for the purpose of evaluating evidence to support a claim.

2. Types of Boundaries Three basic types
Convergent
Divergent
Transform
Each type has unique features that help to identify it
Earthquakes
Volcanoes
Topography
Sea Floor

3. Convergent boundaries
Place where two plates are crashing together
Features depend on type of plates colliding
Oceanic-oceanic
Continental-oceanic
Continental-continental

4. Oceanic-oceanic

5. Example: The Aleutian Arc
Shallow earthquakes near boundary, with deeper earthquakes as you move towards islands or inland, ocean trench at boundary with island arc near boundary, high volcanic activity on inland or island side of boundary, varied age of ocean floor along boundary

6. Oceanic-continental

7. Example: Chile
Shallow earthquakes near boundary, with deeper earthquakes as you move inland, ocean trench at boundary with mountain ranges / high elevation on land side of boundary, high volcanic activity on inland or island side of boundary, varied age of ocean floor along boundary

8. Continental-continental

9. Example: Himalayas
Shallow scattered earthquakes on the side of the boundary with high elevation – mountains and high plateau, low elevation on side of the boundary with low seismic activity, scattered volcanic activity, no ocean floor data

10. Divergent boundaries

11. Example: Mid Atlantic Ridge
Shallow earthquakes along boundary, underwater mountain range along boundary, little bit of scattered volcanic activity around boundary, new ocean floor along boundary

12. Variation of Divergent boundaries

13. Transform boundaries

14. Example: San Andreas Fault
Shallow earthquakes on both sides of the boundary, a lot of scattered volcanic activity, no trenches, varied ocean floor age

15. Science Literacy: Continental Drift Reading
On the Move: Continental Drift and Plate Tectonics by Jim Cornish
Read the article and be answer questions

16. Continental Drift
Continental drift song from Ice Age
animation of continental drift past and future
animation of continenta drift past to present – globe instead of map

17. Puzzle it together
Use the evidence of fossils and mountains to create a possible past “super-continent”
Label each continent by its name
Color each legend and matching mountains or fossils
Cut out the continents
Piece the continents back together
Determine evidence and support by completing the “Analyzing Evidence” worksheet

18. Evidence to support continental drift
What was Wegener’s first piece of evidence leading to continental drift theory?
South America’s fit with Africa
What other evidence supports the theory of continental drift?
Rock formation
Fossils
Ancient climates
Ancient ice sheets

19. Cool Down