1. Plate Tectonics
Shake, Rattle, & Roll!

2. Plate Tectonics
a scientific theory that describes the large scale motions of the Earth's plates.

3. Layers of the Earth

4. Plate Movement
It is believed that tectonic plates are moved by several different forces:
Rotation of the earth
Tidal forces of sun & moon
Gravitational pull
Convection cell

5. Alfred Lothar Wegener
Developed the theory of Pangea & Continental Drift.

6. Pangea

7. The Case for Pangea

8. Continental Drift
Direction of plate drift

9. Types of Plate Motion Convergent Divergent Transform
Tectonic Plate Motion
Under the Earth & Beyond – Plate Tectonic Motion

10. Convergent Boundaries- Where two tectonic plates come together
Divergent Boundaries- where two tectonic plates pull apart
Transform Boundaries- where two tectonic plates grind past each other.

11. Transform Boundary Arial photo of the San Andreas Fault
Border of the Pacific & North American plate, 810 miles long.
Arial photo of the
San Andreas Fault