'Seismic wave speed' presentation slideshows

Differentiated earth

Differentiated earth. Earth. Size Main Characteristics of the surface and interior. Statistics about the Earth. Shape of Earth is nearly spherical (oblate spheroid) (only just 40 miles difference in circumferences) Because earth spins Circumference is about 24,000 miles around

661 views • 54 slides

Seismic tomography

661 views • 25 slides

Earthquakes

Earthquakes. 8 th Grade Science Mrs. Pientok. Forces inside Earth. When rocks break they move along faults. Applied forces cause rocks to undergo elastic deformation. When elastic limits are passed, rocks break.

561 views • 17 slides

Using Earthquakes 1

Using Earthquakes 1. Using Seismograms. In the 1800s, seismographs became more commonplace. Seismograms of a single earthquake could be collected from around the world so they can be carefully inspected. Using Seismograms. Scientists learned some important facts:.

339 views • 14 slides