Earthquakes Video by Myrna Martin
The Earthquakes videos accompany the related textbook and can be downloaded instantly. There are two downloads:
Video 1- Lessons 1 - 8
Video 2 - Lessons 9 - 16.
Myrna Martin introduces each lesson in the textbook on the video. Myrna covers not only the main points in the lesson she also includes extra information on the topic that is not contained in the written material.