The tiny Juan de Fuca plate is largely responsible for the The plates make up Earth's outer shell, called the The movement of the plates creates three types of tectonic boundaries: convergent, where plates move into one another; divergent, where plates move apart; and transform, where plates move sideways in relation to each other.They move at a rate of one to two inches (three to five centimeters) per year.Where plates serving landmasses collide, the crust crumples and buckles into These convergent boundaries also occur where a plate of ocean dives, in a process called subduction, under a landmass. They learn about the contributions of Wegener, Hess, Vine, Matthews, Tuzo-Wilson and McKenzie.Dynamic Earth is an interactive tutorial contains that students can use to learn about the structure of the Earth, the movements of its tectonic plates, as well as the forces that create mountains, valleys, volcanoes, and earthquakes.This short reading from the USGS's online edition of "This Dynamic Earth" discusses the technologies used and data found that helped to develop the Theory of Plate TectonicsLearners use Google Earth files to evaluate real data collected at seven sites east and west of the Mid-Atlantic Ridge by the Deep Sea Drilling Project to discover evidence of seafloor spreading. mid-ocean ridge. Learners create a graph to show the relationship between distance from the Mid-Atlantic Ridge spreading center and age of the sediments (Distance vs. Age).The activity introduces students to the concept of seafloor spreading rates, paleomagnetic anomalies, and plate boundaries (convergent, divergent and transform). U4L2 Dynamic Earth: Plate Tectonics. Plate Tectonics presented in a dynamic perspective. This Dynamic Earth The Story of Plate Tectonics. In the last century a solution formed based on the accumulation of data from a variety of sources and the Theory of Plate Tectonics was developed. They apply their skills to discover that the Mid-Atlantic Ridge, a divergent plate boundary, is rifting Iceland. Since then, scientists have verified and refined this theory, and now have a much better understanding of how our planet has been shaped by plate-tectonic processes. The Annenberg Learner Dynamic Earth Interactive reviews the structure of the earth, the theory of plate tectonics, and the features that form as a result of processes associated with plate tectonics. The three main types of faults, the forces that cause them, as well as geologic features observed at the Earth's surface as a result are addressed. © 1996-2015 National Geographic Society, © 2015- Our Earth continues to be a restless and dynamic planet.
The search for a process that could justify this apparent fit included the idea that the earth changes shape—growing larger or smaller at various times—or that continents could plow through ocean floor but each hypothesis was rejected because there was no evidence to indicate how this could happen. The student activity worksheet Also within the Teacher Zone is the article, "Volcanoes, molten magma, ...and a nice cup of tea!"

From the tallest mountain peaks of the crust to the very center of the core, Earth is in constant motion. by Pete Loader. This video helps you understand what causes volcanoes to form and erupt—and shows where they are most likely to be found. It details the relationships between the changes in the Earth's geosphere, Earth's processes, and human civilizations.This interactive website produced by the Geologic Society of London introduces students to the "Pioneers of Plate Tectonics," takes them through "What is a Plate" and "Plate Margins," to "Plate Tectonics in the UK.


These types of collisions can also lead to underwater volcanoes that eventually build up into island arcs like Japan.At divergent boundaries in the oceans, magma from deep in the Earth's mantle rises toward the surface and pushes apart two or more plates. The three main types of faults, the forces that cause them, as well as geologic features observed at the Earth's surface as a result are addressed. Dynamic Earth: Plate Tectonics. This activity includes instructions on how to build foam models required for this exercise (unless pre-made models are purchased), animation links, worksheets for students, as well as answer keys for teachers.Stein, Seth , Carol A. Stein, Eunice Blavascunas, and Jonas Kley, 2015, INTERPRETIVE PRIMER: Using Lake Superior parks to explain the Midcontinent Rift, Teachers will need to create their own multimedia presentations, deliver lectures and assign ancillary work to their students in order to set the stage for effective use of the learning activities contained herein. 2020 National Geographic Partners, LLC.


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