Chapter 2, Section 3 Internal Forces Shaping the Earth
... one plate to dive under the other or the edges of both plates to crumple; South Asia/India – formation of the Himalayas. • Transform boundary – Plates slide past each other; North America/San Andreas fault in California. ...
... one plate to dive under the other or the edges of both plates to crumple; South Asia/India – formation of the Himalayas. • Transform boundary – Plates slide past each other; North America/San Andreas fault in California. ...
PLATE TECTONICS
... As the plates move away from the spreading centers, they cool, and the higher density basalt rocks that make up ocean crust get consumed at subduction zones. The crust is recycled back into the aesthenosphere. ...
... As the plates move away from the spreading centers, they cool, and the higher density basalt rocks that make up ocean crust get consumed at subduction zones. The crust is recycled back into the aesthenosphere. ...
Unit 2 - Plate Tectonics
... Crust is destroyed in a convergent boundary as one plate slides below another. Convergent boundaries are also known as subduction zones. Collisional boundary – a type of convergent plate boundary where two land masses are moving together. Mountains are created. Divergent boundary – a boundary betwee ...
... Crust is destroyed in a convergent boundary as one plate slides below another. Convergent boundaries are also known as subduction zones. Collisional boundary – a type of convergent plate boundary where two land masses are moving together. Mountains are created. Divergent boundary – a boundary betwee ...
Plate Tectonics Power Point
... theory that states that all present continents were once together and collectively known as a 'supercontinent' called a Pangaea. The Pangaea theory was treated with much skepticism when it was first raised. But since then, there have been much evidence to support this theory. ...
... theory that states that all present continents were once together and collectively known as a 'supercontinent' called a Pangaea. The Pangaea theory was treated with much skepticism when it was first raised. But since then, there have been much evidence to support this theory. ...
Name - Cedar Hill ISD
... 33. What type of boundary is occurring between the African Plate and Antarctic Plate? 34. What type of land feature would you see where the Indian Plate and Eurasian Plate meet? 35. What would happen to that land feature over time to slow or stop the increase in elevation? 36. What is happening to t ...
... 33. What type of boundary is occurring between the African Plate and Antarctic Plate? 34. What type of land feature would you see where the Indian Plate and Eurasian Plate meet? 35. What would happen to that land feature over time to slow or stop the increase in elevation? 36. What is happening to t ...
PlAtE tEcToNiCs - NagelBeelmanScience
... not only are the underlying plates moving but the plates change in size. Also, the sea level changes over time (as the temperature on Earth varies and the poles melt or freeze to ...
... not only are the underlying plates moving but the plates change in size. Also, the sea level changes over time (as the temperature on Earth varies and the poles melt or freeze to ...
Study Guide for Plate Tectonics Final
... 4. What is a divergent plate boundary? How do the plates move? What happens to the crust at this boundary? What features are formed at a divergent plate boundary? Know the difference between ocean and land divergent boundaries. ...
... 4. What is a divergent plate boundary? How do the plates move? What happens to the crust at this boundary? What features are formed at a divergent plate boundary? Know the difference between ocean and land divergent boundaries. ...
Earth and Space Science Semester 2 Exam Review Part 1
... Discovery of mid-ocean ridges and changes in the magnetic striping of rocks at mid-ocean ridges. Trenches followed by subduction zones, mountains and volcanoes. Plant and animal fossils. Glaciation marks or scars. Fracture zones. Similarities of distant mountain ranges. Similarities of plant and ani ...
... Discovery of mid-ocean ridges and changes in the magnetic striping of rocks at mid-ocean ridges. Trenches followed by subduction zones, mountains and volcanoes. Plant and animal fossils. Glaciation marks or scars. Fracture zones. Similarities of distant mountain ranges. Similarities of plant and ani ...
6th Grade Earth Science – Inside Earth Vocabulary 1. crust – the
... 9. compass – an instrument composed of a small, light-weight magnet called a needle, that is balanced on a frictionless bearing 10. continental drift – the hypothesis that the continents slowly move across the Earth’s surface 11. sea-floor spreading – the process by which molten material adds new cr ...
... 9. compass – an instrument composed of a small, light-weight magnet called a needle, that is balanced on a frictionless bearing 10. continental drift – the hypothesis that the continents slowly move across the Earth’s surface 11. sea-floor spreading – the process by which molten material adds new cr ...
Earths_interior_2013 Page 1
... moving A scientific theory of the origin of species of plants and animal The theory that the universe originated 20 billion years ago ...
... moving A scientific theory of the origin of species of plants and animal The theory that the universe originated 20 billion years ago ...
Plate Tectonics Unit Test Study Guide
... 2. The Richter scale measures rock movement on a scale of 1-10 3. Mercalli Scale measures the damage done during an earthquake 4. Occur at convergent, divergent and transform boundaries ...
... 2. The Richter scale measures rock movement on a scale of 1-10 3. Mercalli Scale measures the damage done during an earthquake 4. Occur at convergent, divergent and transform boundaries ...
Supplemental Earth Science Review Questions
... D. The shapes of continents fit together like a jigsaw puzzle. 13. Which of the following is not true of the evidence of sea floor spreading provided by magnetic striping? A. Earth is like a large bar magnet and has two poles. B. Earth’s magnetic poles reverse over hundreds of thousands of years. C. ...
... D. The shapes of continents fit together like a jigsaw puzzle. 13. Which of the following is not true of the evidence of sea floor spreading provided by magnetic striping? A. Earth is like a large bar magnet and has two poles. B. Earth’s magnetic poles reverse over hundreds of thousands of years. C. ...
PLATE TECTONICS
... • Earth’s crust and the rigid, upper part of the mantle = lithosphere (thin outer shell of Earth) – Broken into several blocks (tectonic plates) – Plates ride on a deformable layer of the mantle (asthenosphere) o o ...
... • Earth’s crust and the rigid, upper part of the mantle = lithosphere (thin outer shell of Earth) – Broken into several blocks (tectonic plates) – Plates ride on a deformable layer of the mantle (asthenosphere) o o ...
continental drift and tectonic plates: a webtask
... was part of ___________ and North America of ______________ 5. Are tectonic plates still moving today? Explain. ...
... was part of ___________ and North America of ______________ 5. Are tectonic plates still moving today? Explain. ...
Plate Tectonics
... subducts underneath the continental lithosphere • The melt rises forming volcanism • E.g. The Andes ...
... subducts underneath the continental lithosphere • The melt rises forming volcanism • E.g. The Andes ...
Plate Tectonics campus assessment File
... of Continental Drift? A. A theory by Harry Hess of how the continents were once a supercontinent, and slowly drifted apart to their current locations over a long period of time. B. A theory by Alfred Wegener of how the continents were once a supercontinent and drifted to their current locations over ...
... of Continental Drift? A. A theory by Harry Hess of how the continents were once a supercontinent, and slowly drifted apart to their current locations over a long period of time. B. A theory by Alfred Wegener of how the continents were once a supercontinent and drifted to their current locations over ...
Moving Plates: Restless Earth
... Wegener’s theory stated that over the years, Pangaea split into the continents and drifted apart. A problem with Wegener’s theory, though, was that he thought the continents floated on the ocean floor like icebergs. In the 1960’s, scientists used new discoveries about the sea floor to develop a theo ...
... Wegener’s theory stated that over the years, Pangaea split into the continents and drifted apart. A problem with Wegener’s theory, though, was that he thought the continents floated on the ocean floor like icebergs. In the 1960’s, scientists used new discoveries about the sea floor to develop a theo ...
1-3 Notes: Divergent Boundaries Think About… • What causes
... A ______________________ boundary is where plates move apart. A ______________________ boundary is where plates push together. A ______________________ boundary is where plates move past each other. Seafloor Spreading In 1-2, we learned about seafloor spreading centers. Seafloor spreading ...
... A ______________________ boundary is where plates move apart. A ______________________ boundary is where plates push together. A ______________________ boundary is where plates move past each other. Seafloor Spreading In 1-2, we learned about seafloor spreading centers. Seafloor spreading ...
Tectonic Plates
... pushed underneath the continental crust • The melt rises forming volcanism • Example: The Andes ...
... pushed underneath the continental crust • The melt rises forming volcanism • Example: The Andes ...
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.