Week 27 CCA Review
... Scientists believe that the plates move slowly and continuously because of convection currents in the mantle. The scientific theory, which describes this motion and the continuous changes in Earth’s surface, is called Plate Tectonics. The motion of tectonic plates results in major geological events ...
... Scientists believe that the plates move slowly and continuously because of convection currents in the mantle. The scientific theory, which describes this motion and the continuous changes in Earth’s surface, is called Plate Tectonics. The motion of tectonic plates results in major geological events ...
Chapter 7-1 and 7-2 Review
... He believed that the continents were all once joined 245 million years ago in one single mass called ___________________. 10. What were the 3 kinds of evidence that proved Wegener’s theory? ...
... He believed that the continents were all once joined 245 million years ago in one single mass called ___________________. 10. What were the 3 kinds of evidence that proved Wegener’s theory? ...
The Lithosphere… - Mr Vincent Science
... the asthenosphere. The asthenosphere means region without strength and is the uppermost region of the mantle. The Lithospheric plates are thought to ride on top of the asthenosphere. This region is made up of partially molten rock and is said to be plastic. 1. Why do you think the asthenosphere is d ...
... the asthenosphere. The asthenosphere means region without strength and is the uppermost region of the mantle. The Lithospheric plates are thought to ride on top of the asthenosphere. This region is made up of partially molten rock and is said to be plastic. 1. Why do you think the asthenosphere is d ...
Digestive System Study Guide
... the I____ C_____ is S_______ because of the immense amount of pressure that it is under. ...
... the I____ C_____ is S_______ because of the immense amount of pressure that it is under. ...
Name: Graphing Seafloor Spreading Lab Objective: Using ocean
... Background Information: According to the theory of plate tectonics (from the Greek, tetko, ‘builder’) the Earth’s crust is broken into many slowly moving plates. Sea Floor Spreading occurs at the mid-ocean ridge where two plates are moving away from each other. Magma (hot molten underground rock mat ...
... Background Information: According to the theory of plate tectonics (from the Greek, tetko, ‘builder’) the Earth’s crust is broken into many slowly moving plates. Sea Floor Spreading occurs at the mid-ocean ridge where two plates are moving away from each other. Magma (hot molten underground rock mat ...
Introducción a la Geofísica
... 6) Make a brief summary (with drawn sketches) of the three mayor plate boundaries. 7) Cut the Earth as you would an Apple or an Orange. Sketch the major discontinuities of the Earth. 8) Discuss some of the evidence for continental drift. Why was it so difficult for scientist to accept this theory? T ...
... 6) Make a brief summary (with drawn sketches) of the three mayor plate boundaries. 7) Cut the Earth as you would an Apple or an Orange. Sketch the major discontinuities of the Earth. 8) Discuss some of the evidence for continental drift. Why was it so difficult for scientist to accept this theory? T ...
2651-RDW Using SOLO to develop extended writing
... Describe the mantle as the zone between the crust and the core which is: • cold and rigid just below the crust • hot and non-rigid at greater depths and therefore able to move. Describe the theory of plate tectonics: • energy transfer involving convection currents in the semi-rigid mantle causing th ...
... Describe the mantle as the zone between the crust and the core which is: • cold and rigid just below the crust • hot and non-rigid at greater depths and therefore able to move. Describe the theory of plate tectonics: • energy transfer involving convection currents in the semi-rigid mantle causing th ...
plate boundaries.
... Pacific Ring of Fire Volcanism is mostly focused at ________ margins Volcanoes are formed by: Subduction - Rifting - Hotspots The tectonic plate ______ over a fixed _______ forming a chain of volcanoes. Earthquakes and Plate Tectonics… What’s the connection? ...
... Pacific Ring of Fire Volcanism is mostly focused at ________ margins Volcanoes are formed by: Subduction - Rifting - Hotspots The tectonic plate ______ over a fixed _______ forming a chain of volcanoes. Earthquakes and Plate Tectonics… What’s the connection? ...
Ch 1A Study Guide side 1
... where plates MOVE APART. Most of these boundaries are found in the ____________. A _______________boundary occurs where plates push together. A ___________ boundary occurs where 2 plates scrape past each other. 4) Sea-floor spreads apart at ___________________ boundaries. _______-___________ _______ ...
... where plates MOVE APART. Most of these boundaries are found in the ____________. A _______________boundary occurs where plates push together. A ___________ boundary occurs where 2 plates scrape past each other. 4) Sea-floor spreads apart at ___________________ boundaries. _______-___________ _______ ...
Name
... the stability of a slope can be caused by; an absence of vegetation, erosion of the toe of a slope by running water, or weakening of the slope by water saturation from snowmelt or heavy rains. The shaking of the ground by earthquakes or volcanic activity can often trigger landslides. ...
... the stability of a slope can be caused by; an absence of vegetation, erosion of the toe of a slope by running water, or weakening of the slope by water saturation from snowmelt or heavy rains. The shaking of the ground by earthquakes or volcanic activity can often trigger landslides. ...
Constructive Forces Power Point
... plates meet is called a convergent boundary IE. The island of Japan and the country of Iceland ...
... plates meet is called a convergent boundary IE. The island of Japan and the country of Iceland ...
Plate Tectonics Test Study Guide
... plate- a section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of continental and oceanic crust scientific theory- a well-tested concept that explains a wide range of observations plate tectonics-the theory that pieces of Earth’s lithosphere are in constant motion, dri ...
... plate- a section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of continental and oceanic crust scientific theory- a well-tested concept that explains a wide range of observations plate tectonics-the theory that pieces of Earth’s lithosphere are in constant motion, dri ...
Plate Tectonics Test Study Guide (A)
... Describe the theory of plate tectonics Describe the three types of plate boundaries, including what happens at each type, and the landforms that can be created at each type. Section 5: Key Terms plate- a section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of cont ...
... Describe the theory of plate tectonics Describe the three types of plate boundaries, including what happens at each type, and the landforms that can be created at each type. Section 5: Key Terms plate- a section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of cont ...
plate tectonics - Middletown High School
... Plates are made up of the crust and a part of the upper mantle: Lithosphere- Rigid. Made up of crust and upper mantle. 0-100 km thick. Asthenosphere- The plastic-like layer that lies below the lithosphere. ...
... Plates are made up of the crust and a part of the upper mantle: Lithosphere- Rigid. Made up of crust and upper mantle. 0-100 km thick. Asthenosphere- The plastic-like layer that lies below the lithosphere. ...
Plate Tectonics
... toward the mid-ocean ridge. New bathymetric measurements define the continental crust boundary. Do South America and Africa still fit together? If crust is being created at mid-ocean ridges, it should also be consumed. Where is the crust ...
... toward the mid-ocean ridge. New bathymetric measurements define the continental crust boundary. Do South America and Africa still fit together? If crust is being created at mid-ocean ridges, it should also be consumed. Where is the crust ...
I-4 Dynamic Planet Notes
... The curst is the outermost shell of the Earth. The lithosphere consists of the crust and the upper, rigid part of the mantle (the part that does not take part in the mantle convection). Continental crust is thicker, less dense, and generally much older than oceanic crust. A subduction zone occurs wh ...
... The curst is the outermost shell of the Earth. The lithosphere consists of the crust and the upper, rigid part of the mantle (the part that does not take part in the mantle convection). Continental crust is thicker, less dense, and generally much older than oceanic crust. A subduction zone occurs wh ...
Plate tectonics
... convection cells within the Earth’s mantle, and proved Wegener’s theory right. ...
... convection cells within the Earth’s mantle, and proved Wegener’s theory right. ...
12.13-plate-tectonics
... I. Earth Systems and Resources (10-15%) A. Earth Science Concepts (Geologic time scale; plate tectonics, earthquakes, volcanism; seasons; solar intensity and latitude) ...
... I. Earth Systems and Resources (10-15%) A. Earth Science Concepts (Geologic time scale; plate tectonics, earthquakes, volcanism; seasons; solar intensity and latitude) ...
ch 7-3 Plate Tectonics PowerPoint (plate boundaries)
... Possible causes of tectonic motion — convection currents (website) in asthenosphere ...
... Possible causes of tectonic motion — convection currents (website) in asthenosphere ...
Chapter 12.1 - Evidence for Continental Drift
... Magma (melted rock), rises and falls like warm and cold liquids. The convection current of magma formed a spreading ridge where it broke through Earth’s crust. Like a “new crust” conveyer belt Magnetic striping of basalt rock shows long stripes of new rock moving away from ocean ridges, and ...
... Magma (melted rock), rises and falls like warm and cold liquids. The convection current of magma formed a spreading ridge where it broke through Earth’s crust. Like a “new crust” conveyer belt Magnetic striping of basalt rock shows long stripes of new rock moving away from ocean ridges, and ...
Chapter 17: Plate Tectonics
... 1. the highest measure of heat flow will be at the ridge 2. Heat flow decreases as you move away from the ridge 3. You can expect measurements for heat flow to be the same on each side of the ridge at the same distance away from the ridge. III. . Plate Tectonics A. Modern Theory 1. The Earth is brok ...
... 1. the highest measure of heat flow will be at the ridge 2. Heat flow decreases as you move away from the ridge 3. You can expect measurements for heat flow to be the same on each side of the ridge at the same distance away from the ridge. III. . Plate Tectonics A. Modern Theory 1. The Earth is brok ...
2.4 Plate Tectonics - Northside Middle School
... about 1 inch per year. Seismic activity marks the edges of these plates. The sea floor is spreading - moving the continents with it. The theory of sea floor spreading explains continental drift. Wegener ...
... about 1 inch per year. Seismic activity marks the edges of these plates. The sea floor is spreading - moving the continents with it. The theory of sea floor spreading explains continental drift. Wegener ...
Document
... Intense Pressure allows materials at higher temperatures to exist as a solid. 44. Draw a picture of a convection current and label what is happening to the molecules as they rise and fall. As the mantle is heated by the core, the molecules move apart and it becomes less dense. Less dense mantle rise ...
... Intense Pressure allows materials at higher temperatures to exist as a solid. 44. Draw a picture of a convection current and label what is happening to the molecules as they rise and fall. As the mantle is heated by the core, the molecules move apart and it becomes less dense. Less dense mantle rise ...
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.