Chapter 4 Review Plate Tectonics
... Earth’s oceans. • Sea-floor spreading is a process that adds new material to the ocean floor. It happens at mid-ocean ridges. ...
... Earth’s oceans. • Sea-floor spreading is a process that adds new material to the ocean floor. It happens at mid-ocean ridges. ...
esga3094 - 4J Blog Server
... oceanic plate is forced down into the mantle beneath a second plate. Where two plates move together, ...
... oceanic plate is forced down into the mantle beneath a second plate. Where two plates move together, ...
Review for Earth Science Test
... e. Found in nature 5. What is an Earthquake? It is the shaking that results from the movement of rock beneath Earth’s surface. 6. What is streak? It is the color of a mineral’s powder. 7. What is Mohs’ Hardness Scale? It is the scale used by scientists to classify minerals according to their hardnes ...
... e. Found in nature 5. What is an Earthquake? It is the shaking that results from the movement of rock beneath Earth’s surface. 6. What is streak? It is the color of a mineral’s powder. 7. What is Mohs’ Hardness Scale? It is the scale used by scientists to classify minerals according to their hardnes ...
EARTH SCIENCE - Regional School District 17
... • Convection currents have caused the mass movement of plates over millions of years. ...
... • Convection currents have caused the mass movement of plates over millions of years. ...
The Theory of Tectonic Plates
... The three possible driving forces of tectonic plate movement includes ridge push, slab pull, and convection. Since mid-ocean ridges have higher oceanic lithosphere, it causes a downhill motion to outside oceanic lithosphere which is called ridge push. A slab pull is a downward pulling motion since o ...
... The three possible driving forces of tectonic plate movement includes ridge push, slab pull, and convection. Since mid-ocean ridges have higher oceanic lithosphere, it causes a downhill motion to outside oceanic lithosphere which is called ridge push. A slab pull is a downward pulling motion since o ...
Section 9.5 Mechanism for Plate Tectonics
... Slab-pull is a mechanism that contributes to plate motion in which cool, dense oceanic crust sinks into the mantle and “pulls” the trailing lithosphere along. It is thought to be the primary downward arm of convective flow in the mantle. Ridge-push causes oceanic lithosphere to slide down the sides ...
... Slab-pull is a mechanism that contributes to plate motion in which cool, dense oceanic crust sinks into the mantle and “pulls” the trailing lithosphere along. It is thought to be the primary downward arm of convective flow in the mantle. Ridge-push causes oceanic lithosphere to slide down the sides ...
Rocks and Minerals
... continental crust. -the Baikal Rift Valley and the East African Rift. - Tectonic activity splits continental crust much in the same way it does along mid-ocean ridges. As the sides of a rift valley move farther apart, the floor sinks lower. ...
... continental crust. -the Baikal Rift Valley and the East African Rift. - Tectonic activity splits continental crust much in the same way it does along mid-ocean ridges. As the sides of a rift valley move farther apart, the floor sinks lower. ...
Vocabulary Word Definition Your Sketch/ memory aid 1. Inner core
... below that, the rock is hot and soft enough to move like a thick paste. ...
... below that, the rock is hot and soft enough to move like a thick paste. ...
Hello this is Venus Ice, and this is a podcast for 6th grade science
... fragmented into huge slabs called tectonic plates. These chunks of the earth’s crust move across its surface in response to forces and movements deep within the planet. The plate boundaries are areas of intense geological activity. Most volcanoes and earthquakes occur at these boundaries. Although A ...
... fragmented into huge slabs called tectonic plates. These chunks of the earth’s crust move across its surface in response to forces and movements deep within the planet. The plate boundaries are areas of intense geological activity. Most volcanoes and earthquakes occur at these boundaries. Although A ...
ES Chapter 10 Notes
... - Asthensosphere = the lower part of the upper mantle (more dense part of the mantle) - The crust (also known as PLATES) float around on top of the mantle. **SHOW DIAGRAM OF CRUST, LITHOSPHERE, AND ASTHENOSPHERE** 10.3 Three Types of Boundaries ...
... - Asthensosphere = the lower part of the upper mantle (more dense part of the mantle) - The crust (also known as PLATES) float around on top of the mantle. **SHOW DIAGRAM OF CRUST, LITHOSPHERE, AND ASTHENOSPHERE** 10.3 Three Types of Boundaries ...
Wegener - Course World
... of the Atlantic, and guyots, those curious flat-topped undersea mountains, began to be discovered. How could these features be explained? In the 1940s, underwater seismic exploration was invented. By throwing crates of dynamite into the ocean, and recording the sound waves that returned from the bot ...
... of the Atlantic, and guyots, those curious flat-topped undersea mountains, began to be discovered. How could these features be explained? In the 1940s, underwater seismic exploration was invented. By throwing crates of dynamite into the ocean, and recording the sound waves that returned from the bot ...
Plate Tectonics Notes Name
... and crust 2. The Earth’s lithosphere is a ____________________ layer composed of part of the upper mantle and ____________________ 3. The Earth’s lithosphere is not continuous, but made up of ____________________ pieces fit together like a ____________________ Visualizing Earth’s layers ...
... and crust 2. The Earth’s lithosphere is a ____________________ layer composed of part of the upper mantle and ____________________ 3. The Earth’s lithosphere is not continuous, but made up of ____________________ pieces fit together like a ____________________ Visualizing Earth’s layers ...
Inner Structure of the Earth 3. Mantle
... and form a subduction zone. *If an oceanic plate collides with a continental plate, the heavier oceanic plate will slide under the lighter, continental plate. Results: volcanic mountain building and earthquakes. ...
... and form a subduction zone. *If an oceanic plate collides with a continental plate, the heavier oceanic plate will slide under the lighter, continental plate. Results: volcanic mountain building and earthquakes. ...
STUDY GUIDE FOR TEST 3 (PLATE TECTONICS, GEOLOGIC TIME
... What are the observations that suggest that once-joined continents have moved apart? What are the observations that suggest that continents have drifted together and “collided”? What suggests that they have done it repeatedly? What are the observations that suggest that continents have moved across ...
... What are the observations that suggest that once-joined continents have moved apart? What are the observations that suggest that continents have drifted together and “collided”? What suggests that they have done it repeatedly? What are the observations that suggest that continents have moved across ...
WATERS Mini Lesson
... color code them. They put one map together that shows what the world looks like now, and map that shows what the world looked like 250 million years ago. They put both on the construction paper to make a poster. They have to write two paragraphs explaining how the world went from Pangaea to as we kn ...
... color code them. They put one map together that shows what the world looks like now, and map that shows what the world looked like 250 million years ago. They put both on the construction paper to make a poster. They have to write two paragraphs explaining how the world went from Pangaea to as we kn ...
Plate Tectonics 1
... • Currently, the Pacific Ocean basin is shrinking as other ocean basins expand. • Seismicity is the frequency, magnitude and distribution of earthquakes. Earthquakes are concentrated along oceanic ridges, transform faults, trenches and island arcs. • Tectonism refers to the deformation of Earth’s cr ...
... • Currently, the Pacific Ocean basin is shrinking as other ocean basins expand. • Seismicity is the frequency, magnitude and distribution of earthquakes. Earthquakes are concentrated along oceanic ridges, transform faults, trenches and island arcs. • Tectonism refers to the deformation of Earth’s cr ...
Plate Tectonic Objectives
... 8. Define the theory of plate tectonics and understand how this theory differs from Wegener's continental drift hypothesis and the process of seafloor spreading. 9. Know the three main plate boundaries and the features that are found at each. 10. Know and understand why earthquakes, volcanoes, and m ...
... 8. Define the theory of plate tectonics and understand how this theory differs from Wegener's continental drift hypothesis and the process of seafloor spreading. 9. Know the three main plate boundaries and the features that are found at each. 10. Know and understand why earthquakes, volcanoes, and m ...
Asthenosphere, Lithosphere, Convection
... A tectonic plate is made of the lithosphere. The lithosphere is crust (oceanic or continental) connected to a hard rock layer below Tectonic plates are moved by the asthenosphere The asthenosphere is a slushy part of the Upper Mantle ...
... A tectonic plate is made of the lithosphere. The lithosphere is crust (oceanic or continental) connected to a hard rock layer below Tectonic plates are moved by the asthenosphere The asthenosphere is a slushy part of the Upper Mantle ...
Forces on Earth Outline Notes - Flipped Out Science with Mrs
... Types of Convergent Boundaries (number the pictures to match) ...
... Types of Convergent Boundaries (number the pictures to match) ...
answer key - Riverdale Middle School
... Explain the theory of sea-floor spreading and draw and label a model to explain what is occurring. Sea-floor spreading adds more crust to the ocean floor. At the same time, older strips of rock move outward from either side of the ridge. ...
... Explain the theory of sea-floor spreading and draw and label a model to explain what is occurring. Sea-floor spreading adds more crust to the ocean floor. At the same time, older strips of rock move outward from either side of the ridge. ...
Document
... 1. The place where two plates push together; one plate sinking beneath another; continental-continental collision, oceanic-continental subduction, oceanic-continental subduction. 2. Where two continental plates push together; how mountains form. 3. Denser oceanic plate sinks into the asthenosphere; ...
... 1. The place where two plates push together; one plate sinking beneath another; continental-continental collision, oceanic-continental subduction, oceanic-continental subduction. 2. Where two continental plates push together; how mountains form. 3. Denser oceanic plate sinks into the asthenosphere; ...
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.