Plate Tectonics Study Guide
... oceanic crust slides downhill under the continental crust due to gravity 6. What is slab pull? oceanic crust is denser than continental crust, so it pulls the rest of the plate with it as it sinks into the mantle 7. Where are the convection currents located that move Earth’s plates? The Athenosphere ...
... oceanic crust slides downhill under the continental crust due to gravity 6. What is slab pull? oceanic crust is denser than continental crust, so it pulls the rest of the plate with it as it sinks into the mantle 7. Where are the convection currents located that move Earth’s plates? The Athenosphere ...
PLATE TECTONICS The Earth`s Crust is in Motion
... Oceanic-to-Continental Convergent Boundaries • More dense _oceanic___ crust subducts under the less dense _continental___ crust. ...
... Oceanic-to-Continental Convergent Boundaries • More dense _oceanic___ crust subducts under the less dense _continental___ crust. ...
Layers of the Earth
... • Crust-Like the shell of an egg is very thin (roughly 5km thick). Mostly Silica and Oxygen. Very brittle. • Continental crust is thick. Made of granite. • Oceanic crust is thin. Made of basalt. ...
... • Crust-Like the shell of an egg is very thin (roughly 5km thick). Mostly Silica and Oxygen. Very brittle. • Continental crust is thick. Made of granite. • Oceanic crust is thin. Made of basalt. ...
Plate Tectonics
... A rift valley forms where two continental and continental plate move away from each other. ...
... A rift valley forms where two continental and continental plate move away from each other. ...
Name
... 7. List some evidence that proved continental drift did occur? 8. Earthquakes mainly are associated with what one boundary? 9. Draw and label all the layers and sub layers of the Earth. 10. What do the tectonic plates “float” on? 11. What produces seismic waves? 12. What’s another name for continent ...
... 7. List some evidence that proved continental drift did occur? 8. Earthquakes mainly are associated with what one boundary? 9. Draw and label all the layers and sub layers of the Earth. 10. What do the tectonic plates “float” on? 11. What produces seismic waves? 12. What’s another name for continent ...
Study Guide
... 1. What are the four layers of Earth? What state of matter is each layer? 2. What happens to the temperature and pressure as you move toward the center of Earth? 3. What types of plates make up the crust? How are they different from one another? 4. What happens in the mantle? 5. Why is the outer cor ...
... 1. What are the four layers of Earth? What state of matter is each layer? 2. What happens to the temperature and pressure as you move toward the center of Earth? 3. What types of plates make up the crust? How are they different from one another? 4. What happens in the mantle? 5. Why is the outer cor ...
Inside Restless Earth 4
... drift apart from one another and did so in the past 1)Alfred Wegener wrote this theory 2) evidence that supports continental drift a)The puzzle- like fit of the continents b)Fossils of the same species found on opposite sides of the ocean c)The pattern of grooves left by glaciers ...
... drift apart from one another and did so in the past 1)Alfred Wegener wrote this theory 2) evidence that supports continental drift a)The puzzle- like fit of the continents b)Fossils of the same species found on opposite sides of the ocean c)The pattern of grooves left by glaciers ...
Plate Tectonics
... • Get into teams of three • Each person will focus on one type of boundary – divergent (Column A) – convergent (Column B) – transform (Column C) ...
... • Get into teams of three • Each person will focus on one type of boundary – divergent (Column A) – convergent (Column B) – transform (Column C) ...
Plate Tectonic Notes
... moves the molten mantle rock? • Why does mantle rock begin to sink back towards the lower mantle from the area closest to the crust? • What would be different/happen if the core ...
... moves the molten mantle rock? • Why does mantle rock begin to sink back towards the lower mantle from the area closest to the crust? • What would be different/happen if the core ...
Section Review
... b. mantle. c. outer core. d. inner core. _____ 4. The part of the Earth on which the tectonic plates move is the a. lithosphere. b. asthenosphere. c. mesosphere. d. crust. 5. Identify the layers of the Earth by their chemical composition. _____________________________________________________________ ...
... b. mantle. c. outer core. d. inner core. _____ 4. The part of the Earth on which the tectonic plates move is the a. lithosphere. b. asthenosphere. c. mesosphere. d. crust. 5. Identify the layers of the Earth by their chemical composition. _____________________________________________________________ ...
Plate Tectonics
... The tectonic plates are made up of the Earth’s crust and the upper part of the mantle layer underneath. Together the crust and upper mantle are called the lithosphere and they extend about 80 km deep. The lithosphere is broken into giant plates that fit around the globe like puzzle pieces. These puz ...
... The tectonic plates are made up of the Earth’s crust and the upper part of the mantle layer underneath. Together the crust and upper mantle are called the lithosphere and they extend about 80 km deep. The lithosphere is broken into giant plates that fit around the globe like puzzle pieces. These puz ...
Pacific Ring of Fire Plate Tectonics
... Plate Tectonics Theory - A convective cell heat system is the basic process responsible for plate motion. ...
... Plate Tectonics Theory - A convective cell heat system is the basic process responsible for plate motion. ...
PLATES OF THE EARTH`S CRUST
... Most scientists agree that the earth's crust is made of plates that move slowly. sure exactly where all the edges are, nor even just how many plates there are in all. '"etThis map shows the biggest plates as we now think of them. In a few years \\,e will know more. T'he,v are not, ...
... Most scientists agree that the earth's crust is made of plates that move slowly. sure exactly where all the edges are, nor even just how many plates there are in all. '"etThis map shows the biggest plates as we now think of them. In a few years \\,e will know more. T'he,v are not, ...
Chapter 3: EARTH STRUCTURE AND PLATE TECTONICS
... 6. Describe the mechanism that powers the movement of the lithospheric plates. The interior of the Earth is hot; the main source of this heat is the radioactive decay of unstable elements within the Earth. When heated from below, the fluid asthenosphere expands, becomes less dense, and rises. It tu ...
... 6. Describe the mechanism that powers the movement of the lithospheric plates. The interior of the Earth is hot; the main source of this heat is the radioactive decay of unstable elements within the Earth. When heated from below, the fluid asthenosphere expands, becomes less dense, and rises. It tu ...
WHAT ARE THE CAUSES OF TECTONIC HAZARDS? 1 Structure of
... Find/draw a labelled cross section through the earth showing the different layers (asthenosphere, etc) Find/draw a diagram and write a paragraph to show how convection currents work. 2 Theory of plate tectonics Write about Alfred Wegener’s idea of continental drift What evidence is there tha ...
... Find/draw a labelled cross section through the earth showing the different layers (asthenosphere, etc) Find/draw a diagram and write a paragraph to show how convection currents work. 2 Theory of plate tectonics Write about Alfred Wegener’s idea of continental drift What evidence is there tha ...
8.3 – What is Seafloor Spreading?
... a. volcanic mountains. b. ocean crust c. transform faults. d. rift valleys. ...
... a. volcanic mountains. b. ocean crust c. transform faults. d. rift valleys. ...
Study Guide – Plate Tectonics (Chapter 21) Name _____ Question
... 13. What is a subduction zone? ...
... 13. What is a subduction zone? ...
Powerpoint - Fort Bend ISD
... cools and hardens and creates new sea floor. • The rock at the mid-ocean ridge is the youngest and gets older as it moves farther away from the ridges. ...
... cools and hardens and creates new sea floor. • The rock at the mid-ocean ridge is the youngest and gets older as it moves farther away from the ridges. ...
Essential Questions: February 13-17, 2017 Name: Date: Period
... 333The theory of___________________ states that new ocean crust is formed at ocean ridges and destroyed at deep-sea trenches. a. seafloor spreading b. tectonic plates c. continental drift 4Earthquakes are a sudden motion caused by movement of tectonic plates working against a. friction b. gravity c. ...
... 333The theory of___________________ states that new ocean crust is formed at ocean ridges and destroyed at deep-sea trenches. a. seafloor spreading b. tectonic plates c. continental drift 4Earthquakes are a sudden motion caused by movement of tectonic plates working against a. friction b. gravity c. ...
The Faults - Raleigh Charter High School
... plate, the oceanic plate goes beneath the continental plate. This is called Subduction. Ex. Nazca and South American Plate Subduction also forms trenches ...
... plate, the oceanic plate goes beneath the continental plate. This is called Subduction. Ex. Nazca and South American Plate Subduction also forms trenches ...
Wizard Test Maker
... continents that are separated by an ocean indicates A) this species was capable of swimming long distances. B) the continents must have been connected at some time in the past. C) a species can evolve separately on two different continents. D) there is no explanation. 17. The occurrence of earthquak ...
... continents that are separated by an ocean indicates A) this species was capable of swimming long distances. B) the continents must have been connected at some time in the past. C) a species can evolve separately on two different continents. D) there is no explanation. 17. The occurrence of earthquak ...
Plate tectonics
Plate tectonics (from the Late Latin tectonicus, from the Greek: τεκτονικός ""pertaining to building"") is a scientific theory that describes the large-scale motion of Earth's lithosphere. This theoretical model builds on the concept of continental drift which was developed during the first few decades of the 20th century. The geoscientific community accepted the theory after the concepts of seafloor spreading were later developed in the late 1950s and early 1960s.The lithosphere, which is the rigid outermost shell of a planet (on Earth, the crust and upper mantle), is broken up into tectonic plates. On Earth, there are seven or eight major plates (depending on how they are defined) and many minor plates. Where plates meet, their relative motion determines the type of boundary; convergent, divergent, or transform. Earthquakes, volcanic activity, mountain-building, and oceanic trench formation occur along these plate boundaries. The lateral relative movement of the plates typically varies from zero to 100 mm annually.Tectonic plates are composed of oceanic lithosphere and thicker continental lithosphere, each topped by its own kind of crust. Along convergent boundaries, subduction carries plates into the mantle; the material lost is roughly balanced by the formation of new (oceanic) crust along divergent margins by seafloor spreading. In this way, the total surface of the globe remains the same. This prediction of plate tectonics is also referred to as the conveyor belt principle. Earlier theories (that still have some supporters) propose gradual shrinking (contraction) or gradual expansion of the globe.Tectonic plates are able to move because the Earth's lithosphere has greater strength than the underlying asthenosphere. Lateral density variations in the mantle result in convection. Plate movement is thought to be driven by a combination of the motion of the seafloor away from the spreading ridge (due to variations in topography and density of the crust, which result in differences in gravitational forces) and drag, with downward suction, at the subduction zones. Another explanation lies in the different forces generated by the rotation of the globe and the tidal forces of the Sun and Moon. The relative importance of each of these factors and their relationship to each other is unclear, and still the subject of much debate.