Layers of the Earth and Plate Tectonics
... Relate the paper dot lab to the convection currents in the mantle. *When the paper dots heated up they raised to the top (less dense). As the dots cooled (denser) they sank to the bottom. This creates a circular motion. *This is like the magma in the mantle. The magma heats and rises to the surface ...
... Relate the paper dot lab to the convection currents in the mantle. *When the paper dots heated up they raised to the top (less dense). As the dots cooled (denser) they sank to the bottom. This creates a circular motion. *This is like the magma in the mantle. The magma heats and rises to the surface ...
Plate Tectonics Jeopardy Game
... This is the boundary caused by plates moving past each other in opposite directions. ...
... This is the boundary caused by plates moving past each other in opposite directions. ...
Inside Earth Study Guide
... Directions: Answer these questions on a separate piece of loose-leaf paper. Be sure to separate them by section and number them. Section 1: Earth’s Interior (S6E5a) 1. Draw and label the layers of the earth ...
... Directions: Answer these questions on a separate piece of loose-leaf paper. Be sure to separate them by section and number them. Section 1: Earth’s Interior (S6E5a) 1. Draw and label the layers of the earth ...
HW 2: Plate Tectonics
... Attached is the map portion of a 3-dimensional diagram of three major tectonic plates (labeled plates 1 through 3) carrying two different continents: “Bella Casa” and “Mirabella”. The large arrows in the middle of the diagram indicate the direction of plate movement; the dashed lines represent the l ...
... Attached is the map portion of a 3-dimensional diagram of three major tectonic plates (labeled plates 1 through 3) carrying two different continents: “Bella Casa” and “Mirabella”. The large arrows in the middle of the diagram indicate the direction of plate movement; the dashed lines represent the l ...
Chapter 3: Plate Tectonics
... supercontinent called Pangaea. • He thought the continents seemed to fit together as a puzzle. ...
... supercontinent called Pangaea. • He thought the continents seemed to fit together as a puzzle. ...
Earth`s Layers Notes Printable
... Outermost, Solid Layer 2: continental and oceanic Composed of; oxygen, silicon and aluminum Oceanic must denser (due to 2x the iron, calcium and magnesium) 30 km MANTLE Hot, slow-flowing rock Convection takes place here Cooler rock sinks, warmer rock rises Denser than crust 2,900 ...
... Outermost, Solid Layer 2: continental and oceanic Composed of; oxygen, silicon and aluminum Oceanic must denser (due to 2x the iron, calcium and magnesium) 30 km MANTLE Hot, slow-flowing rock Convection takes place here Cooler rock sinks, warmer rock rises Denser than crust 2,900 ...
Dynamic Earth Test Review
... How to locate the epicenter of an earthquake 3 types of faults Richter and Mercalli scales – what they are based on, used for, etc. How a fault is different from a plate boundary Difference between magma and lava Types of volcanoes (shapes, types of eruptions) Why are some volcanoes more explosive t ...
... How to locate the epicenter of an earthquake 3 types of faults Richter and Mercalli scales – what they are based on, used for, etc. How a fault is different from a plate boundary Difference between magma and lava Types of volcanoes (shapes, types of eruptions) Why are some volcanoes more explosive t ...
Powerpoint
... The process by which the ocean floor sinks beneath a deepocean trench and back into the mantle is called ...
... The process by which the ocean floor sinks beneath a deepocean trench and back into the mantle is called ...
Intro to Earth
... theory did not adequately explain the forces that caused the plates to move Major breakthrough in the development of a complete theory of the earth’s dynamics occurred in the early 1960’s, when the topography of the ocean floors was mapped and magnetic and seismic characteristics were determined ...
... theory did not adequately explain the forces that caused the plates to move Major breakthrough in the development of a complete theory of the earth’s dynamics occurred in the early 1960’s, when the topography of the ocean floors was mapped and magnetic and seismic characteristics were determined ...
Earth Interior and Plate tectonics
... • Subduction – the process by which one lithospheric plate moves beneath another as a result of tectonic forces • Subduction of oceanic crust generates volcanoes ...
... • Subduction – the process by which one lithospheric plate moves beneath another as a result of tectonic forces • Subduction of oceanic crust generates volcanoes ...
Chapter 17 Study Guide Answers
... • 4. Climate clues (glaciers) • 5. Rock clues (similar mountains) ...
... • 4. Climate clues (glaciers) • 5. Rock clues (similar mountains) ...
Theory of Plate Tectonics
... Hot material rises while cool material sinks Cool material is dense The motion of sinking and rising material drags the tectonic plate away from mid-ocean ridge Flash Presentation ...
... Hot material rises while cool material sinks Cool material is dense The motion of sinking and rising material drags the tectonic plate away from mid-ocean ridge Flash Presentation ...
Chapter 17 Study Guide 16
... convection currents → heated material rises, cools, and sinks back down ____________________________________________________________________________________ 14) In the process of subduction which plate will always subduct? Why? ________________________________________________________________________ ...
... convection currents → heated material rises, cools, and sinks back down ____________________________________________________________________________________ 14) In the process of subduction which plate will always subduct? Why? ________________________________________________________________________ ...
Chapter 7 Review - Plate Tectonics
... This review is simply a tool to help you to begin to think about and review some of the material we covered and you must know for your test. In addition to completing this review, you should look over your notes, worksheets, the book, and any other material given. EVERYTHING we discussed and learned ...
... This review is simply a tool to help you to begin to think about and review some of the material we covered and you must know for your test. In addition to completing this review, you should look over your notes, worksheets, the book, and any other material given. EVERYTHING we discussed and learned ...
Plate Tectonics Web Activity
... Why was Wegener’s idea not accepted by all geologists? _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ ____ ...
... Why was Wegener’s idea not accepted by all geologists? _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ ____ ...
Sea Floor Spreading – 1956-1963
... Sediment thickness in the oceans does not correlate with the distance from ridge ...
... Sediment thickness in the oceans does not correlate with the distance from ridge ...
Chapter 17 Plate Tectonics Notes
... • Glacial till – deposits of glacial sediment on continents that are now in tropical climates. Also, rocks scratched by glaciers. ...
... • Glacial till – deposits of glacial sediment on continents that are now in tropical climates. Also, rocks scratched by glaciers. ...
Continental Drift
... 2. How are ocean-floor rocks and sediments evidence of seafloor spreading? 3. How do magnetic strips support seafloor spreading? 4. What would Wegener say after seeing this evidence? ...
... 2. How are ocean-floor rocks and sediments evidence of seafloor spreading? 3. How do magnetic strips support seafloor spreading? 4. What would Wegener say after seeing this evidence? ...
Plate Tectonics Lithosphere broken into plates 3 Types of plate
... Plate Tectonics Def.: A theory that explains the behavior of the Earth’s lithosphere in terms of several moving plates. ...
... Plate Tectonics Def.: A theory that explains the behavior of the Earth’s lithosphere in terms of several moving plates. ...
Name____________________________
... Continental Crust: Less-dense crust that makes up the continents. Continental Drift: A theory stating that the Earth's continents have been joined together and have moved away from each other at different times in the Earth's history. Pangaea: Single, giant landmass, or continent, that later broke a ...
... Continental Crust: Less-dense crust that makes up the continents. Continental Drift: A theory stating that the Earth's continents have been joined together and have moved away from each other at different times in the Earth's history. Pangaea: Single, giant landmass, or continent, that later broke a ...
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.