1. Objective 10/8/2012
Describe the theory of plate tectonics.
Intro
Pick up worksheet from front table.
Grades posted on Student Wall
Which piece(s) of evidence proved the Theory of Continental Drift?

2. Theory of Plate Tectonics

3. Theory of Plate Tectonics
Tectonic Plates
Large, puzzle piece- like portion of the lithosphere
Not all the same shape
Can be large or small
Can contain both types of crust
“float” on asthenosphere

5. Tectonic Plates
A Tectonic Plate close-up…

6. Theory of Plate Tectonics
States that the Earth’s lithosphere is broken into moving plates driven by convection currents in the mantle

7. Tectonic Plates and Waves
Summary: The Lithosphere is broken up into huge pieces called Tectonic Plates. These tectonic plates “float” around on the asthenosphere. The Theory of Plate Tectonics states these plates move by convection currents.

8. Objective 10/8/2012
Describe the theory of plate tectonics.
Outro
Compare and contrast the Theory of Continental Drift with the Theory of Plate Tectonics. (Comparing/Contrasting foldable)