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Plate Tectonics What evidence do scientists have to support the fact that the Earths crust is continuously moving?
Plate Tectonics The theory that describes how tectonic plates move and shape Earths surface Tectonic plates are huge pieces of crust that fit together at their edges to cover Earths surface.
About 12 plates exist on Earth
Earths Interior Crust – Rigid outer shell of Earth –Oceanic and Continental Crust Mantle –Upper mantle is partially molten –Lower mantle is rigid (solid)
Earths Interior Core –Outer core is molten iron, source of Earths magnetic field –Inner core is solid, Iron and Nickel
Plate Boundaries Divergent Boundary Convergent Boundary Transform Boundary
Divergent Boundary Two tectonic plates move apart from each other Rift 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 – Continental –Mountain Building –Himalayas –Aleutian Islands
Transform Boundary Region where two plates slide past each other Earthquakes occur at transform boundaries San Andreas Fault in San Francisco
Theory of Plate Tectonics Plate Tectonics Plate Boundaries Causes of Plate Tectonics.
Topic: Earth’s Features Essential Question: What crustal features are created by the movement of Earth’s plates?
The Theory of Plate Tectonics. The lithosphere is divided into separate sections called plates. The plates carry continents and ocean crust or both.
The Theory of Plate Tectonics. Plate Tectonics Plate tectonics is the theory that explains why and how continents move. By the 1960s evidence supported.
The Structure of the Earth and Plate Tectonics. Structure of the Earth The Earth is made up of 3 main layers: –Core –Mantle –Crust Inner core Outer core.
Mr. Russo Beaumont High School Divergent boundary Convergent boundary Transform fault boundary Oceanic Ridge Rift Valley Seafloor Spreading.
Warm Up – Page 78 Answer this on page 78 in your notebook: Mrs. Wilson, I still dont get _________________. Could you explain it again?
Do Now # 4 What is the difference between convergent, divergent, and transform boundaries?
Chapter 8: Plate TectonicsChapter 8: Plate Tectonics 8.1: Earth has several layers 8.2: Continents change position over time 8.3: Plates move apart 8.4:
Plate Tectonics 6.E.2.2 Explain how crustal plates and ocean basins are formed, move and interact using earthquakes, heat flow and volcanoes to reflect.
Plate Tectonics. Brief Structure of the Earth Divided into layers: –Core, mantle, crust.
1.How do the rocks of the crust and lithosphere compare? Rocks in the crust are less dense and made mainly of granite. The rocks in the lithosphere are.
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 1b–1 Plate Tectonics A geological theory that states that pieces of Earth’s.
Choose a category. You will be given the answer. You must give the correct question. Click to begin.
Changes to Earth’s Surface Chapter 6. Prior Knowledge What are the layers of the Earth? What are the layers of the Earth? What causes Earth’s surface.
Some questions we will answer today: –How is the earth always changing? –What forces inside the earth create and change landforms on the surface? –What.
Earths interior layers. The major layers of the Earth consist of the crust, mantle, outer core and inner core.
Continental Drift Chapter 10 Section 1. Continental Puzzle Do the continents fit together perfectly? What continents fit the best? What other information.
Plate Tectonics. The Earth's surface is made up of a series of large plates (like pieces of a giant jigsaw puzzle). These plates are in constant motion.
How Do Earths Plates Move? Chapter 1, Section 2, pD14-19.
Energy in the Geosphere Learning Goals: 1.Understand that there are 3 plate boundaries and that specific geological events occur at each boundary. 2.Understand.
Seafloor Spreading What evidence do scientists have to support the fact that the Earths crust is continuously moving?
Our Changing Earth. What is a Theory? In science, its almost the same as a fact Must be some sort of evidence to support a theory Even with evidence there.
Plate Tectonics Lynn Hahn. Tectonic Plate Theory Theory that explains the movement of continents across the globe. It explains why some earthquakes occur.
Geology - is the study of rocks and materials that make up Earth and the processes that shape it.
Warm Up 11/ What hypothesis states that the continents were once joined to form a single supercontinent? a. continental driftc. plate tectonics.
(ALFRED WEGENER 1915 ) I PANGEA- A LARGE LANDMASS CONTAINING ALL OF THE CONTINENTS. WHICH EVENTUALLY BROKE INTO TWO LANDMASSES a) LAURASIA- N. AMERICA,EUROPE,
Plate Tectonics and Earthquakes Objectives: Students will learn key terms associated with Students will learn key terms associated with plate tectonic.
Earth’s Layers Pages C6-11. Earth’s Layers Crust-where we walk Crust-where we walk Mantle-thickest layer, made mostly of solid rock Mantle-thickest layer,
Plate Boundaries and Plate Interactions. Goals Classify and label the types of movement at plate boundaries, using a world map that shows relative plate.
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