The Mohorovicic Seismic Discontinuity, Cosmology and Astronomy

Shake things up in your STEM or earth science classroom when you have small groups construct their own seismographs. A reading assignment on the history of seismographs, the Richter scale, and current technology sets the stage for the...

Use a video on seismic waves to explain the differences between s and p waves, as well as the details that they provide about the composition of the rock.

Mr. Khan uses the metaphor of a car to help explain the change in the direction of waves as they hit a boundary between two mediums. He then goes on to explain the relationship between the earth's structure and density and the waves'...

Starting with a very clear diagram to demonstrate how a wave actually forms, an informative video will be a great summary about s wave travel. It explains the difference between polar bonds in liquids versus the stronger ionic and...

This video segment adapted from NOVA uses historical illustrations, photographs, and animations to explain how seismographs work, the difference between P and S waves, and the Richter scale.

Nice pictures, maps and informative diagrams are incorporated into this PowerPoint about earthquake types and the types of waves carrying energy produced.  There are a number of pages explaining scientific terminology and diagrams...

Students explore earthquakes and seismic waves. They investigate how energy is released in the subsurface to create seismic waves. Students explore the inner workings of a seismograph and how they are used to determine the location of an...

Students work together to discuss seismic waves. Using seismograph records, they practice determining where the epicenter of the earthquake was located. They identify and illustrate the three types of waves and how the records can be...

After an earthquake, Andrija Mohorovicic was the first one to realize that there are distinct layers to the earth. This video explains the seismic activity that can occur after earthquakes that led to this discovery. [6:12]

This resource describes the two different types of seismic waves and how they travel through the earth, offers diagrams of the waves, their speeds, and how seismograms are used to locate earthquakes.