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This radio broadcast explains how the North Pole is constantly moving due to the rotation of the Earth, which in turn is determined by any changes in the mass distribution of the Earth. The clip is 2 minutes in length. Full description.
Grade level: General public
Resource type: Radio broadcast
Subject: Geophysics
 
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In this activity students plot the latitude and longitude involved in the movement of the Magnetic North Pole over a period of time, predict its location by the year 2000, and justify their reasoning. Students will discover that the Magnetic North Pole has been charted over the past several hundred years and that the pole shifts an average of 15 kilometers/year. They will also learn tha navigation ... Full description.
Grade level: Middle (6-8), High (9-12)
Resource type: Classroom activity
Subject: Geophysics
 
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Educational standards associated with this resource:
National Science Education Standards (NSES): Read
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In this activity students learn about Earth's magnetic reversals by reading two fiction stories and a scientific summary of past reversals, including graphical information. This will help students discriminate between factual and fictional descriptions of a natural phenomenon, which has been scientifically studied from the fossil and geologic record of Earth, and found to be a lot less frightening ... Full description.
Grade level: Middle (6-8), High (9-12)
Resource type: Classroom activity
Subject: Geophysics
 
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Educational standards associated with this resource:
National Science Education Standards (NSES): Read
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The Earth hums, emitting a tone too low for human ears to detect. Geophysicists have finally located the source of the noise. As this radio broadcast reports, it comes from the largest oceans during winter, apparently the result of powerful winter storms. The hum comes from the surface of the Earth rising and falling less than a millionth of a meter, vibrating once per 300 seconds. The clip is 3 minutes ... Full description.
Grade level: General public
Resource type: Radio broadcast, Sound
Subject: Geophysics
 
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This is the homepage of the Marine Seismic Data Center (MSDC) of the University of Texas Institute for Geophysics (UTIG). MSDC's purpose is to organize seismic reflection and refraction data into a modern relational database management system accessible through the Internet. The web site provides access to metadata, SEG-Y (seismic shot record conversion) files, navigation files, seismic profile images, ... Full description.
Grade level: Graduate / Professional
Resource type: Clearinghouse, In-situ dataset, Remotely sensed dataset
Subject: Geophysics
 
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This set of animations, accompanied by an audio narrative, shows the four types of wave motion seen in an earthquake: P waves, S waves, Love waves, and Rayleigh waves. A brief written narrative and a set of study questions are also included. Full description.
Grade level: Middle (6-8), High (9-12), College (13-14)
Resource type: Visualization - scientific, Sound
Subject: Geophysics
 
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This tutorial provides information on the four types of wave motion seen in earthquakes (S, P, Love, and Rayleigh waves). A table accompanied by text describes their particle motion, typical veolcity, and other characteristics. The four animations show a rectangular block of material with outlined with grid lines and a filled-in grid square to highlight the particle motion and direction of propagation. ... Full description.
Grade level: Middle (6-8), High (9-12), College (13-14)
Resource type: Tutorial, Illustration - scientific
Subject: Geophysics
 
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Read (1)
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In this exercise, students will use two shake intensity maps with Modified Mercalli Intensity values, one of the New Madrid Earthquake and the other of Southern California, to determine the location of earthquake epicenters. They will draw curves that enclose areas of similar intensity (as given by the numerical values representing the reports of witnesses), look for patterns or closures in the isoseismal ... Full description.
Grade level: Middle (6-8), High (9-12)
Resource type: Classroom activity
Subject: Geophysics
 
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Read (1)
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This tutorial introduces students to geomagnetism, the Earth's magnetic field, and its changes through time and space. Topics include the properties of Earth's magnetic field, how it makes a compass work, and why Earth has a magnetic field. There is also discussion of magnetic reversals, a set of links to additional reading and resources, and a set of classroom activities on the basic properties of ... Full description.
Grade level: Intermediate (3-5), Middle (6-8), High (9-12)
Resource type: Classroom activity, Illustration - scientific, Imagery - remotely sensed, Ref. material
Subject: Geophysics
 
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This site provides access to near real-time data on the Earth's magnetic field available at 14 United States Geological Survey (USGS) observatories across the world. The data includes fluxgate sensor measurements (H, D, Z, or intensity and declination) specifications and proton magnetometer data (F, or strength), and are available with a 12-24 minute delay. The data are 'preliminary' in nature, meaning ... Full description.
Grade level: High (9-12), College (13-14), College (15-16), Graduate / Professional
Resource type: Modeled dataset
Subject: Geophysics
 
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