Dynamic Earth Interactive Notes Earth`s Structure Plate Tectonics
... Collision Zones and Mountains Form when only continental crusts collide. ...
... Collision Zones and Mountains Form when only continental crusts collide. ...
Earth`s Changing Surface
... and law of action-reaction such as in Earth’s tectonic activities. Inertia, Force and Acceleration, Action-Reaction: Competing forces in the Earth’s mantle pushes or pulls on the crust. Plates apply equal and opposite forces on teacher other. Acceleration depends on the forces acting on the plate an ...
... and law of action-reaction such as in Earth’s tectonic activities. Inertia, Force and Acceleration, Action-Reaction: Competing forces in the Earth’s mantle pushes or pulls on the crust. Plates apply equal and opposite forces on teacher other. Acceleration depends on the forces acting on the plate an ...
3_GC1_Plates2_09
... Slab pull-Ridge push • Ridge push – The higher elevation of the MOR pushes the adjacent lithosphere away. • Slab-pull – Once an oceanic plate begins to subduct, it pulls the rest of the plate with it • Plates may be slowed or hastened by convection in asthenosphere ...
... Slab pull-Ridge push • Ridge push – The higher elevation of the MOR pushes the adjacent lithosphere away. • Slab-pull – Once an oceanic plate begins to subduct, it pulls the rest of the plate with it • Plates may be slowed or hastened by convection in asthenosphere ...
Energy and Waves Review Sheet/Study Guide
... 9. The layers of earth from question 7 make up the __lithosphere_______. ...
... 9. The layers of earth from question 7 make up the __lithosphere_______. ...
Pack 15 KS3 Chemistry rock detectives Earth structure
... "to build." If we put these two words together, we get the term plate tectonics and this is the theory geologists use to explain how the Earth's surface is built up. The theory of plate tectonics says that the Earth's outer layer is broken into twelve or more plates. Some are large and some are smal ...
... "to build." If we put these two words together, we get the term plate tectonics and this is the theory geologists use to explain how the Earth's surface is built up. The theory of plate tectonics says that the Earth's outer layer is broken into twelve or more plates. Some are large and some are smal ...
Plate Tectonics Crossword
... 5. the assembly of most or all of the Earth's continental blocks to form a single large landmass ...
... 5. the assembly of most or all of the Earth's continental blocks to form a single large landmass ...
REVIEW Earth`s Interior
... Use the following terms to label the diagram below. Then, use the terms to fill in the blanks in the sentences that follow. Terms may be used more than once. crust outer core mantle inner core mesosphere asthenosphere tectonic plate core lithosphere ...
... Use the following terms to label the diagram below. Then, use the terms to fill in the blanks in the sentences that follow. Terms may be used more than once. crust outer core mantle inner core mesosphere asthenosphere tectonic plate core lithosphere ...
Grade 7 Science Unit 4: The Earth`s Crust
... Theory of Continental Drift which suggests that the continents change position slowly by a few cm a year. ...
... Theory of Continental Drift which suggests that the continents change position slowly by a few cm a year. ...
Grade 7 Science Unit 4: The Earth`s Crust
... Theory of Continental Drift which suggests that the continents change position slowly by a few cm a year. ...
... Theory of Continental Drift which suggests that the continents change position slowly by a few cm a year. ...
What are the Layers of the Earth?
... Scientists think that the lithosphere broke into pieces, called tectonic plates, some 3.8 billion years ago. Most earthquakes are caused by large-scale movement of these lithospheric plates, and occur at boundaries between the plates. Experts recognize seven to twelve major plates and a number of sm ...
... Scientists think that the lithosphere broke into pieces, called tectonic plates, some 3.8 billion years ago. Most earthquakes are caused by large-scale movement of these lithospheric plates, and occur at boundaries between the plates. Experts recognize seven to twelve major plates and a number of sm ...
Plate Tectonics
... Almost identical patterns of rock layers on different continents is evidence that the rocks were once close together or joined. Why are the continents moving? 4 of 6 ...
... Almost identical patterns of rock layers on different continents is evidence that the rocks were once close together or joined. Why are the continents moving? 4 of 6 ...
Chapter 3
... toward the mantle The process by which molten material adds new oceanic crust to the ocean floor Sea-floor spreading The process by which oceanic crust sinks beneath a deep-ocean trench and back into ...
... toward the mantle The process by which molten material adds new oceanic crust to the ocean floor Sea-floor spreading The process by which oceanic crust sinks beneath a deep-ocean trench and back into ...
PLATE TECTONICS
... continental drift, at the time his theory was not widely accepted. In spite of the evidence that the continents had once been joined, few scientists could understand how the massive continents, weighing billions of tons, could actually move. Wegener never satisfactorily explained this problem. He su ...
... continental drift, at the time his theory was not widely accepted. In spite of the evidence that the continents had once been joined, few scientists could understand how the massive continents, weighing billions of tons, could actually move. Wegener never satisfactorily explained this problem. He su ...
Plate Tectonics PowerPoint
... Plate Boundaries • Types of Plate Boundaries: – TRANSFORM: Where two plates slide past each other, moving in opposite directions. ...
... Plate Boundaries • Types of Plate Boundaries: – TRANSFORM: Where two plates slide past each other, moving in opposite directions. ...
plate tectonics - Trupia
... continental drift, at the time his theory was not widely accepted. In spite of the evidence that the continents had once been joined, few scientists could understand how the massive continents, weighing billions of tons, could actually move. Wegener never satisfactorily explained this problem. He su ...
... continental drift, at the time his theory was not widely accepted. In spite of the evidence that the continents had once been joined, few scientists could understand how the massive continents, weighing billions of tons, could actually move. Wegener never satisfactorily explained this problem. He su ...
Earth Science Vocabulary
... Earth Science Vocabulary 1. Asthenosphere – the part of the mantle that features plasticity 2. Conduction – the transfer of thermal energy through direct contact between particles of matter 3. Continental Drift – the hypothesis that all continents were once joined together in a single landmass and h ...
... Earth Science Vocabulary 1. Asthenosphere – the part of the mantle that features plasticity 2. Conduction – the transfer of thermal energy through direct contact between particles of matter 3. Continental Drift – the hypothesis that all continents were once joined together in a single landmass and h ...
Landforms depend on types of crust that meet
... • Landforms depend on types of crust that meet • Crust is destroyed (melted) • occurs at these ridges when new floor (crust) forms because magma rises up & spreads apart on both sides of the ridge (right & left) pushing away old material (crust or rock) & hardening to become new crust ...
... • Landforms depend on types of crust that meet • Crust is destroyed (melted) • occurs at these ridges when new floor (crust) forms because magma rises up & spreads apart on both sides of the ridge (right & left) pushing away old material (crust or rock) & hardening to become new crust ...
Plate Tectonics Vocabulary Continental Drift The
... A section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of continental and oceanic crust The theory that pieces of Earth’s lithosphere are in constant motion , driven by convection currents in the mantle A deep valley that forms where two plates move apart The process ...
... A section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of continental and oceanic crust The theory that pieces of Earth’s lithosphere are in constant motion , driven by convection currents in the mantle A deep valley that forms where two plates move apart The process ...
The theory of plate tectonics
... Moves like a conveyor belt Oceanic crust eventually descends into ocean trenches and is destroyed • Ocean basins perpetually being recycled ...
... Moves like a conveyor belt Oceanic crust eventually descends into ocean trenches and is destroyed • Ocean basins perpetually being recycled ...
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.