1. Plate Tectonics

2. ●The theory that describes how giant plates move on the earth’s surface o Only accepted since the 1960s-70s ●The earth’s crust is broken into 12 major plates, which move in various directions o Very slowly, of course ●With a partner, brainstorm what makes the plates move

3. Plate Tectonics ●Convection VideoConvection Video ●Pangaea - Modern Day VideoPangaea - Modern Day Video o Pangaea ~ 300 Million years ago

4. Why it matters to us

5. Three Types of Plate Boundaries: ●Divergent ●Convergent ●Transform

6. Divergent Boundaries ●Plates moving away from each other o Continental: Rift Valley o Oceanic: Mid-Ocean Ridges

7. Divergent Boundaries

8. Convergent Boundaries ●Plates moving towards each other o Continent-Continent: Mountain Ranges o Continent-Oceanic: Ocean Trenches o Oceanic-Oceanic: Trenches & Island Arcs

9. Continent-Continent Convergent ●Mountain Ranges

10. Continent-Oceanic Convergent ●Subduction & Trenches

11. Continent-Oceanic Convergent

12. Oceanic-Oceanic Convergent ●Subduction, Trenches & Island Arcs

13. Oceanic-Oceanic Convergent

14. Rift - Divergent Ridge - Divergent Valley - Erosion Trench - Convergent

15. Transform Boundaries ●Plates moving past each other

16. Transform Boundaries ●Plates moving past each other

17. Underwater Volcano Video