Plate Tectonics Homework Packet
... - What Greek word does this name come from? 9. Earth’s crust must be moving for the continents to change. What might be causing the plates to move? ...
... - What Greek word does this name come from? 9. Earth’s crust must be moving for the continents to change. What might be causing the plates to move? ...
Foundations* - Chapter 9, 10, and 11 Exam
... 2. One type of evidence that supports Wegener’s continental drift hypothesis is the existence of ____________________ that begin on one continent and continue on another. 3. Most scientists in Wegener’s day rejected his hypothesis for continental drift because he could not explain a(n) _____________ ...
... 2. One type of evidence that supports Wegener’s continental drift hypothesis is the existence of ____________________ that begin on one continent and continue on another. 3. Most scientists in Wegener’s day rejected his hypothesis for continental drift because he could not explain a(n) _____________ ...
The plate tectonic revolution part I.
... The new global tectonics of the 1970’s Earth’s ultimate recycling program ...
... The new global tectonics of the 1970’s Earth’s ultimate recycling program ...
Plate Tectonic Theory Notes
... 5. The edges of Earth’s plates meet at plate ________________________ that extend deep into the ____________________________. 6. ________________ - a break or crack in Earth’s lithosphere along which the rocks move 7. When two plates collide, the ___________________ of the plates determines which on ...
... 5. The edges of Earth’s plates meet at plate ________________________ that extend deep into the ____________________________. 6. ________________ - a break or crack in Earth’s lithosphere along which the rocks move 7. When two plates collide, the ___________________ of the plates determines which on ...
Plate Tectonics
... “Plate Tectonics” after mapping the ocean floor. He discovered that the Atlantic gets larger each year. ...
... “Plate Tectonics” after mapping the ocean floor. He discovered that the Atlantic gets larger each year. ...
Chapter 5-Study Questions
... made of several large segments that are slowly moving. ___12. Earth’s rigid outer shell, called the crust, lies over a hotter, weaker zone known as the athenosphere. ___13. Sea floor spreading is the mechanism responsible for producing ocean-floor material at the crest of oceanic ridges. ___14. The ...
... made of several large segments that are slowly moving. ___12. Earth’s rigid outer shell, called the crust, lies over a hotter, weaker zone known as the athenosphere. ___13. Sea floor spreading is the mechanism responsible for producing ocean-floor material at the crest of oceanic ridges. ___14. The ...
Reviewing Vocabulary Reviewing Key Concepts
... a. mountain range b. volcanic island chain c. deep-ocean trench d. continental rift valley 14. What happens when two oceanic plates meet? a. Both plates sink into the asthenosphere. b. The colder, denser plate sinks. c. Both plates fold the rock between them. d. One plate slides past the other. 15. ...
... a. mountain range b. volcanic island chain c. deep-ocean trench d. continental rift valley 14. What happens when two oceanic plates meet? a. Both plates sink into the asthenosphere. b. The colder, denser plate sinks. c. Both plates fold the rock between them. d. One plate slides past the other. 15. ...
Plate tectonics: The main features are
... The ocean floors are continually moving, spreading from the centre and sinking at the edges. Convection currents in the mantle beneath the plates move the plates in different directions. The source of heat driving the convection currents is radioactive decay which is happening deep in the Earth. ...
... The ocean floors are continually moving, spreading from the centre and sinking at the edges. Convection currents in the mantle beneath the plates move the plates in different directions. The source of heat driving the convection currents is radioactive decay which is happening deep in the Earth. ...
earthsciencechap17qu..
... 10: A convergent boundary is the place where two plates meet. 11: The youngest rocks on the sea flood are found in rifts in the mid-ocean ridges. 12: Alfred Wegener proposed the theory of continental drift. 13: According to plate tectonics, the Earth’s lithosphere is divided into several huge, movin ...
... 10: A convergent boundary is the place where two plates meet. 11: The youngest rocks on the sea flood are found in rifts in the mid-ocean ridges. 12: Alfred Wegener proposed the theory of continental drift. 13: According to plate tectonics, the Earth’s lithosphere is divided into several huge, movin ...
Plate Tectonics
... surface, including folds, faults, mountain belts, continents, & earthquake belts Continental Drift - movement of continental masses across the Earth’s surface Sea Floor Spreading - new lithosphere material (i.e. oceanic crust & upper mantle material) is being added along a series of mountain ranges ...
... surface, including folds, faults, mountain belts, continents, & earthquake belts Continental Drift - movement of continental masses across the Earth’s surface Sea Floor Spreading - new lithosphere material (i.e. oceanic crust & upper mantle material) is being added along a series of mountain ranges ...
An active chain of volcanoes at p boundaries is called the Ring of F
... The interior of the Earth is hot. Convection currents- heat flow and movement of material within the Earth cause sections of Earth’s crust to move. This may result in earthquakes, volcanic eruption, and the creation of mountains and ocean basins. Convection cells- within the mantle may the driving f ...
... The interior of the Earth is hot. Convection currents- heat flow and movement of material within the Earth cause sections of Earth’s crust to move. This may result in earthquakes, volcanic eruption, and the creation of mountains and ocean basins. Convection cells- within the mantle may the driving f ...
Plate Tectonics Matching
... similar mountain ranges divergent boundary between two plates boundary that are moving apart convergent two plates move together boundary mid-ocean mountains chains at the bottom ridge of the oceans between continents rift valley magma rises between two diverging continental plates subduction regi ...
... similar mountain ranges divergent boundary between two plates boundary that are moving apart convergent two plates move together boundary mid-ocean mountains chains at the bottom ridge of the oceans between continents rift valley magma rises between two diverging continental plates subduction regi ...
Plate Tectonics Review Worksheet
... Plate Tectonics Worksheet (Some answers may have to be researched) 1. Define Continental Drift: ...
... Plate Tectonics Worksheet (Some answers may have to be researched) 1. Define Continental Drift: ...
Plate Tectonics Crossword
... The term used to describe the natural, magnetic polarity of rocks. ...
... The term used to describe the natural, magnetic polarity of rocks. ...
Document
... theory that continents can drift apart from one another and have done so in the past ...
... theory that continents can drift apart from one another and have done so in the past ...
The Structure of Earth - Mrs. wolfe`s 6th grade science classroom
... earthquake was caused by the movement of tectonic plates at the San Andreas Fault. ...
... earthquake was caused by the movement of tectonic plates at the San Andreas Fault. ...
Earth Unit Review
... Using the map provided, locate the seven MAJOR plates. Highlight them in yellow and note where the Ring of Fire is located in Red. ...
... Using the map provided, locate the seven MAJOR plates. Highlight them in yellow and note where the Ring of Fire is located in Red. ...
Example
... spreading, earths plates, and continental drift into a single theory- The Theory of Plate Tectonics • Theory of Plate Tectonics (PT) - pieces of Earth’s lithosphere are in slow, constant motion, driven by convection currents in the mantle. • PT explains the formation, movement, and subduction of Ear ...
... spreading, earths plates, and continental drift into a single theory- The Theory of Plate Tectonics • Theory of Plate Tectonics (PT) - pieces of Earth’s lithosphere are in slow, constant motion, driven by convection currents in the mantle. • PT explains the formation, movement, and subduction of Ear ...
Plate Tectonics Powerpoint by jnb 160
... The outermost part of the Earth is made of two layers • Lithosphere – the crust and mantle • Asthenosphere – the viscous part of the mantle ...
... The outermost part of the Earth is made of two layers • Lithosphere – the crust and mantle • Asthenosphere – the viscous part of the mantle ...
The Theory of Plate Tectonics - Ouray School District R-1
... produce large mountains (hymliays) 3) Oceanic vs oceanic: One goes under the other and the subducted plate produces magma that forms and rises to form an island arc. ...
... produce large mountains (hymliays) 3) Oceanic vs oceanic: One goes under the other and the subducted plate produces magma that forms and rises to form an island arc. ...
SCI Ch4 Study Guide KEY
... 12. Two types of lithosphere are _______________ and __________________. Continental and oceanic 13. Matter and energy for plate motion are provided by ______________. ...
... 12. Two types of lithosphere are _______________ and __________________. Continental and oceanic 13. Matter and energy for plate motion are provided by ______________. ...
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.