After the orange demo, we illustrate how to use maps of earthquake locations to draw outlines of earths major tectonic plates and give them names. Aug 25, 2014 study coauthor professor sergei pisarevskiy says plate tectonics is the study of the horizontal movement of tectonic plates over the earths surface. Teach your students about plate tectonics using these classroom resources. Tectonic plates the skin of our planet down to earth youtube. This section provides access to a wide array of visualizations and supporting material that can be used effectively to teach students about plate tectonic movements. Located in places where tectonic plates diverge or where one plate dives under another ii. Tectonic movements in eastern side of the americas region are relatively simple compared to the western side. The animation clips and other geoeducational items described below, are available for viewing andor download free of charge for your personal andor educational uses only. Once the planet cooled enough for a crust to form, the surface may have looked more like modernday venus, with the crust and upper mantle collectively called the lithosphere forming a single unbroken plate. Designed for teachers, students, parents, homeschoolers, educators and all lifelong learners.
Animation showing pangaea and movement of the plates from. Surface observations and seismic waves showed that the earths interior was solid. Theory explaining these movements of plates is known as plate tectonics. Plates moving due to convection in mantle video khan academy.
The north america plate, for instance, extends from the west coast of the u. Our planets surface has been shaped and reshaped by plate tectonics through cycles of supercontinent amalgamation and breakup. Mar 17, 2017 tectonic plates dont quite match the continents and the oceans on the earths surface. These speeds assist scientists in the extrapolation procedure.
The material of tectonic plates lithosphere and oceanic crust is discussed before students learn how tectonic plates move like conveyor belts and that scientists have determined the directions the plates will move. Three of the forces that have been proposed as the main drivers of tectonic plate movement are. Fish teeth and tectonic plates tell a new story about worlds. The plates fit together like puzzle pieces to make up earths surface. Tectonic movement definition of tectonic movement by the. By examining the earths mineral and energy sources, scientists analyze how the theory of plate tectonics has revolutionized the search for earths treasures that lie hidden in locations such as the red sea and antarctic ice cap. These plates move at one of three types of plate boundaries. This subject is on the effects tectonic plate have on earthquakes and volcanoes. In the theory of plate tectonics, the earths crust is broken into plates that move around relative to each other.
By measuring the speed of presentday plate motions, geophysicists can predict where the plates may be in relation to one another in the future. Ideal as a supplement to a curriculum or for independent study. Examine an animation of plate movement predicted for the future. The movements of these plates can account for noticeable geologic events such as earthquakes, volcanic eruptions, and more subtle yet sublime events, like the building of mountains. These tectonic plates rest upon the convecting mantle, which causes them to move. Apr 14, 2009 this animated video shows the movement of the tectonic plates that make up the earths crust. How would solid material accomodate movement in this solid body. As a result of this movement, three types of plate boundaries are formed. Mar 01, 2016 this video briefly discusses the theory of tectonic plates, the different types of plate boundaries and their surface features. These measurements demonstrate, with little room for debate, that plates are real entities and that they are currently in motion across the face of the earth. Most tectonic activity occurs where two plates meet. Their movements change the planets features, depending on how the plates meet.
When plates pull apart, they create a spreading, or divergent, boundary. This subject is on the effects tectonic plate have on. Divergent occurs when two tectonic plates move away from the other. The movement of the plates creates three types of tectonic boundaries. Mid atlantic ridge in the atlantic ocean spreads north american plate and south american plate away from western eurasian plate and african plate. Dec 12, 20 a quick overview of plate tectonics, including a look at the different types of plate boundaries. Tectonic plates push and pull against each other like bumper cars, and are responsible for some. These land masses move around the way bath toys move around in the bathtub. Ah, you say, but can you demonstrate what you mean using an orange.
Fish teeth and tectonic plates tell a new story about. A convection cell and seafloor spreading are also discussed. And well talk about how that might partially explain, and well talk about all of the explanations for why we think the plates might actually be moving. To find out more about how tectonic plates visit revision world.
Tectonic plates map vector download free vectors, clipart. They form at boundaries where plates move together converge. I am pleased to offer a new hd motivational trailer choreographed to powerful music, introducing students to the earth science subject of plate tectonics. Tectonic plates are the plates beneath us in the mantle that are constantly moving.
The theory of plate tectonics states sections of the earths crust are pushing against each other miles below the earths surface, causing earthquakes, volcanoes and the movement of the continents. We kick off the party with title track in my head which is a creepy, old school roller, driven by spooky harmonics, along with the skippier drum stylings. This is tectonic plates by mary on vimeo, the home for. These plate movements are caused by convection currents in the mantle. The scientific theory that explains the movement of the plates. We can study the motion of the tectonic plates, and the continents that they carry, by measuring the magnetic signatures recorded in rocks that form the. In this video we describe the three major compositional layers of earth and the characteristics of a tectonic plate which is composed. Plate tectonics and continental drifts the theory of plate tectonics had enabled us.
Plate tectonic videos, earthquake videos, tsunamis videos, geyser videos, crustal motion videos. It flows clockwise around antarctica because there are no land masses in the way and it plays a role in maintaining the large ice sheets on antarctica because it keeps. A group of geophysicists is testing the hypothesis that the rate of supercontinent assemblyor tectonic plate movementchanges over time. The three types of plate movement are divergent, convergent and transform plate boundaries. May 01, 2015 the lithosphere is divided into pieces we call tectonic plates. The model does not account for continental collisions, subduction, or seafloor spreading.
There are a number of competing theories that attempt to explain what drives the movement of tectonic plates. Plate tectonics information and facts national geographic. I like that this video shows stripes of varying thicknesses, as they are in the real world. What are tectonic plates tectonic movement dk find out. This animation takes the average plate motion observed over the past one million years and projects it 100 million years into the future. Tectonic movements result in the deformation of the rocks making up the crust and are usually associated with a change in the chemical composition, phase state mineral composition, and internal. The antarctic circumpolar current acc is the worlds largest ocean current. Can the movement of tectonic plates be stopped by some. Uncertain already received an airing on label boss pinchs recent fabric mix, and it sounds pristine in its solitary form, as mammoth chord stabs follow an equally hefty bassline.
This short video provides an introduction into plate tectonics and charts some of the historic movement of plates. This lesson is most appropriate for 6th and 7th grade students. Starting 600 million years ago, watch continents form and break apart as the plates move. This movement, or tectonic activity, is constantly changing the surface of the earth. A transform plate boundary occurs when two plates slide past each other. This movement is caused by convection currents the currents in the. This collection is not exhaustive but does represent some of the best. This animated video shows the movement of the tectonic plates that make up the earths crust. Tectonic plates push and pull against each other like bumper cars, and are responsible for some of earths major features. These data document the reality of the defining aspects of plate tectonics in operation in our world today. Worlds tectonic plate movement mapped geology page.
Plate tectonics evidence of plate movement internet archive. A quick overview of plate tectonics, including a look at the different types of plate boundaries. The velocities of the worlds plates range from 1 millimeter per year, to as much as 300 millimeters per year. For more information or to download this public domain video, go to. Convergent plate movement also creates earthquakes and often forms chains of volcanoes. This video briefly discusses the theory of tectonic plates, the different types of plate boundaries and their surface features. Some plates are crunching together, and may form mountains. I can use the patterns of earthquakes and volcanoes to draw the approximate locations of the plate boundaries on a world map. And the pacific plate includes a chunk of california as well as most of the pacific ocean see the list of plates. The movement of the tectonic plates is caused by a convection currents in earths mantle.
The tectonic plates that lie under land are called continental plates. This is tectonic plates by mary on vimeo, the home for high quality videos and the people who love them. Pangaea the supercontinent, split up at about 220 million years ago into laurasia and gondwana both of which broke up again. As one of the real leading forces in bristols 140 scene, we were very excited when we heard tell of a new project dropping from boofy, especially when we learnt that it was to be alongside now legendary tectonic imprint. Plate tectonics is a scientific theory describing the largescale motion of seven large plates and the movements of a. This video briefly discusses the theory of tectonic plates, the. Its outer shell is made up of huge slabs of moving rock called tectonic plates. In the north atlantic, the rate of movement is only about 1 cm about 0. Which place on earth can you feel the movement of tectonic. Scientists claim the theory of plate tectonics has caused the movement of continents ever since they were formed.
Learning objectives i can describe the characteristics of a tectonic plate. Choose from over a million free vectors, clipart graphics, vector art images, design templates, and illustrations created by artists worldwide. It is hard for me to imagine an alternative explanation. Download the app now for your mobile device android. Understanding plate motions this dynamic earth, usgs. Plates can collide, move apart, or slip past each other. You are allowed to download the video for nonprofit, educational use. Plate tectonics evidence of plate movement addeddate 20110717 10.
Very roughly, you can understand how it can flip so quickly by watching this video. Tens of thousands of excellent, educational videos in a huge, intuitive directory. Visualizations include simple animations, gisbased animated maps, paleogeographic maps and globes, as well as numerous illustrations and photos. Earths lithosphere is divided into eight large plates with about two dozen smaller ones that are drifting above the. From youtube, produced by phoenix learning group, inc.
You can feel this anywhere on earth but the question is how often do they happen. Ocean trenches are narrow, deep depressions on the ocean floor. Tectonic movement article about tectonic movement by the. Difference between crust and lithosphere structure of the earth plate tectonics. Where tectonic plates drift apart under the sea, magma rises up through the cracks. Tectonic movement or diastrophic movement, a mechanical movement of the earths crust caused by forces that act in the crust and, primarily, mantle. Apart from compositional zoning, earth is also zoned by strength, a property that measures how much an earth material can resist being deformed. Cumulative earthquake activity 19801995 with tectonic plates. The movement of the tectonic plates is caused by a. Warmed by the blazinghot core, the mantle churns in circular convection currents, dragging tectonic plates along for the ride. Plate tectonics and how the earth works free trial. It flows clockwise around antarctica because there are no land masses in the way and it plays a role in maintaining the large ice sheets on antarctica because it keeps warmer ocean waters away, dr whittaker explained. When this occurs under the ocean, it creates new ocean floor. Geological features of convergent plate boundaries.
Tectonic plates the skin of our planet down to earth. Tectonic movements result in the deformation of the rocks making up the crust and are usually associated with a change in the chemical composition, phase state mineral composition, and internal structure of the rocks subjected to deformation. Effect of tectonic plates tectonic plates greatly effects the earth whether it is continental drift or natural disasters. For millions of years after the planet accreted, its surface roiled with a molten magma ocean. Convergent when two plates move towards each other, they would collide. This video explains the formation of volcanoes as a result of the movement of tectonic plates, including mount st. But now, if we fast forward to more present times now that we have gps satellites and all the rest, we can actually measure the movement of the plates. Plate tectonics and how the earth works free trial download. Whenever there is an earthquake, you are feeling the movement of tectonic plates, all the volcanic eruptions are because of tectonic movements. Speed of the continental plates the physics factbook. Tectonic plates dont quite match the continents and the oceans on the earths surface. Ive always struggled to show this type of movement and this really helps me when teaching magnetic reversals. Lithospheric plates most geophysicists opposed the hypothesis of plate tectonics in the early 1900s, even as late as the 1960s.