[ ]    Teaching Videos: Earthquakes - Chapter 9 // Earth Science YouTube Channel


Playlist: ESA - Earthquakes
(Video Homework -- 12 Secret Codes )

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Seismic Waves
-- by KhanAcademy

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Refraction of Seismic Waves
-- by KhanAcademy
 
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Why S-Waves Only Travel in Solids
-- by KhanAcademy