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Plate Tectonics What evidence do scientists have to support the fact that the Earth’s crust is continuously moving?
Plate Tectonics The theory that describes how tectonic plates move and shape Earth’s surface Tectonic plates are huge pieces of crust that fit together at their edges to cover Earth’s surface.
About 12 plates exist on Earth
Earth’s Interior Crust – Rigid outer shell of Earth MantleOceanic and Continental Crust Mantle Upper mantle is partially molten Lower mantle is rigid (solid)
Earth’s Interior Core Outer core is molten iron, source of Earth’s magnetic field Inner core is solid, Iron and Nickel
Plate Boundaries Divergent Boundary Convergent BoundaryTransform Boundary
Divergent Boundary Two tectonic plates move apart from each otherRift valleys – long narrow depressions Rift valley in East Africa
Convergent Boundary Two tectonic plates move towards each other (come together) Oceanic Plates are more dense Continental Plates are less dense
Subduction Process when one tectonic plate slips beneath another plate
Oceanic – Oceanic Subduction Occurs Deep Sea Trenches (Marianas Trench)
Oceanic – Continental Subduction Occurs Trench and Volcanic Arch (Peru – Chile Trench)
Continental – ContinentalMountain Building Himalayas Aleutian Islands
Transform Boundary Region where two plates slide past each otherEarthquakes occur at transform boundaries San Andreas Fault in San Francisco
San Andreas Fault
Theory of Plate Tectonics
Topic: Earth’s Features
Guided Notes on the Theory of Plate Tectonics
Composition of the Earth
1.1 Earth has several Layers. Denser material sinks Less dense material rises to the top.
Jeopardy Plate tectonics Q $100 Q $100 Q $100 Q $100 Q $100 Q $200
Plate Tectonics Review
Major Geological Events
Plate Tectonics – Section 17.3
Types of Plate Boundaries
17.3 Plate Boundaries Objectives
Plate Tectonics Jeopardy Game. Game On! Final Challenge I know my boundaries Boundaries too History Of Tectonics Layers of Earth Fact Maniac
Planet EarthSection 1 What is Earth’s Interior Like? 〉 How is Earth’s interior structured? 〉 Earth’s interior is made up of several distinct compositional.
Seafloor Spreading Theory Explains how ocean crust is formed at ocean ridges and destroyed at deep- sea trenches Supports Wagener’s continental drift.
Essential Questions How does the movement of Earth’s tectonic plates result in many geologic features? What are the three types of plate boundaries and.
Theory of Plate Tectonics Plate Tectonics Plate Boundaries Causes of Plate Tectonics.
The Earth’s Interior & Plate Tectonics. The Earth’s Interior The Earth’s Interior can be broken up into 4 major zones Crust Mantle Outer core Inner core.
Composition: Silicon, Oxygen, and Aluminum Types: › Continental Crust: solid & rocky outer layer › Oceanic Crust: thin & dense material.
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