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This web site provides a general introduction to elastic rebound theory. An animation shows how the earth is gradually distorted about the fault, in response to distant forces, eventually leading to sudden slip or displacement along the fault--what we call an earthquake. Full description.
Grade level: Middle (6-8), High (9-12), College (13-14)
Resource type: Tutorial, Illustration - scientific
Subject: Geophysics
 
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Educational standards associated with this resource:
National Science Education Standards (NSES): Read
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This site provides a brief history of both scientific and popular beliefs and knowledge of seismology; from ancient theories to 1910. Full description.
Grade level: Intermediate (3-5), Middle (6-8), High (9-12)
Resource type: Ref. material
Subject: Geophysics
 
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This is one of a series of six lectures covering earthquakes and related topics in seismology. They are part of the course, Geology 101 (Physical Geology). The page includes short descriptions and illustrations of key concepts. Full description.
Grade level: High (9-12), College (13-14)
Resource type: Illustration - scientific, Ref. material
Subject: Geophysics
 
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This web page explains the goals and benefits of studying gravity and magnetic data to understand subsurface geology of the Earth. It discusses uses of gravity and magnetic measurements in providing information about the density of rocks, and explains how these measurements are useful in exploration for oil and gas and mineral deposits. The page uses gravity and magnetic maps and as well as figures ... Full description.
Grade level: College (13-14), College (15-16)
Resource type: Module / Unit, Illustration - scientific
Subject: Geophysics
 
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The Significant Earthquake Database is a global digital database containing information on more than 5,000 destructive earthquakes from 2150 B.C. to the present. Users can access these data in two different ways: via a two-volume CD collection, or on-line. Users searching on-line can query the database via the following parameters: the year of the event, geographical coordinates (latitude and longitude), ... Full description.
Grade level: College (13-14), College (15-16)
Resource type: In-situ dataset
Subject: Geophysics
 
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These demonstrations are designed to help students develop a conceptual understanding of geophysical principles. The concepts covered in these demonstrations include rheology, seismic waves, reflection, standing waves, velocity, earthquakes, Earth density, magnetic field, resonance, precession, the shadow zone, and Curie temperature. Each demonstration provides background information and a complete ... Full description.
Grade level: High (9-12), College (13-14)
Resource type: Presentation / Demo
Subject: Geophysics
 
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This page presents a description of the precession of the Earth, its relation to the precession of a spinning top, and Milankovitch's theory, linking precession (and orbital changes) with the occurrence of ice ages. Full description.
Grade level: High (9-12), College (13-14)
Resource type: Illustration - scientific, Ref. material
Subject: Geophysics
 
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This easily built classroom apparatus is ideal for gaining a better understanding of how earthquakes work and how they are recorded. The apparatus consists of a heavy object that is dragged steadily with an elastic cord. Although pulled with a constant velocity, the heavy object repeatedly slides and then stops. A small vibration sensor, attached to a computer display, graphically monitors this motion, ... Full description.
Grade level: Middle (6-8), High (9-12)
Resource type: Presentation / Demo
Subject: Geophysics
 
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Educational standards associated with this resource:
National Science Education Standards (NSES), National Geography Standards: Read
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In this activity, students create their own P- and S-wave travel chart and develop a better understanding of the relationship between the two wave types, travel times, and travel distances. Full description.
Grade level: High (9-12)
Resource type: Lab activity
Subject: Geophysics
 
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The properties of a rheid represent essentially all Earth materials: they behave elastically over short time scales and plastically over long time scales. In this demonstration, silly putty is used to help explain these properties as well as the yield strength of a material. Full description.
Grade level: Middle (6-8), High (9-12), College (13-14)
Resource type: Presentation / Demo
Subject: Geophysics
 
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National Science Education Standards (NSES): Read
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Results 11 - 20 of 359 <<  1 2 3 4 5 6  >>