What are some examples that help to prove plate tectonics?
Evidence from fossils, glaciers, and complementary coastlines helps reveal how the plates once fit together. Fossils tell us when and where plants and animals once existed. Some life “rode” on diverging plates, became isolated, and evolved into new species.
What are the 3 types of plate boundaries provide an illustration?
Tectonic Plates and Plate Boundaries
- There are three main types of plate boundaries:
- Convergent boundaries: where two plates are colliding.
- Divergent boundaries – where two plates are moving apart.
- Transform boundaries – where plates slide passed each other.
What can we teach after plate tectonics?
Learning Objectives After this activity, students should be able to: Identify evidence of continental movement and explain continental drift. Explain plate movement and the consequences of that movement on landforms. Describe how engineers design buildings for earthquake-prone areas.
Why are plates moving?
The heat from radioactive processes within the planet’s interior causes the plates to move, sometimes toward and sometimes away from each other. This movement is called plate motion, or tectonic shift.
What are plate tectonics?
A tectonic plate (also called lithospheric plate) is a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere. The variations in plate thickness are nature’s way of partly compensating for the imbalance in the weight and density of the two types of crust.
What are 4 pieces of evidence for plate tectonics?
There is variety of evidence that supports the claims that plate tectonics accounts for (1) the distribution of fossils on different continents, (2) the occurrence of earthquakes, and (3) continental and ocean floor features including mountains, volcanoes, faults, and trenches.
How did you classify the three types of plate boundaries What was your basis?
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.
What you have learned about plate tectonics?
Plate tectonics is the theory that Earth’s outer shell is divided into large slabs of solid rock, called “plates,” that glide over Earth’s mantle, the rocky inner layer above Earth’s core. It lubricates the undersides of Earth’s tectonic plates, allowing the lithosphere to move around.
How are illustrations used to teach plate tectonics?
I have used the illustrations on these pages (see menus at page top and bottom), with only minor modifications, to lead students from primary grades through graduate school in lessons about plate tectonics, volcanoes, earthquakes, and the rock cycle. When time allows, I always opt to draw these illustrations step-by-step with my students.
Who are the main investigators of plate tectonic movement?
Several maps with plate motion arrows are shown under the heading of ‘Teaching’. Lawrence Lawver and Ian Dalziel of the University of Texas Institute for Geophysics (UTIG) are Principal Investigators of the PLATES Project.
Are there animations of plate tectonics in North America?
Educational Multimedia Visualization Center: Downloads ( more info) Nine animations address tectonics of the west coast of North America, many aspects of transform boundaries and strike-slip faulting. Animations also depict subduction, rifting and volcanism, and oil reservoirs.
Which is the best description of plate tectonics?
This Dynamic Earth: the Story of Plate Tectonics ( more info) Still images used to introduce the concept of plate tectonics in this classic treatment from the USGS. Illustrations are concise and easy to understand, and used to depict topics such as plate boundaries; plate motions; and hotspots and mantle thermal plumes.