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Wave movement is explored using a metal tray of prepared gelatin, dominoes, sugar cubes, plastic wrap and a rubber mallet, in a demonstration of physical principles supporting the study of earthquakes. The resource is part of the teacher's guide accompanying the video, NASA SCI Files: The Case of the Shaky Quake. Lesson objectives supported by the video, additional resources, teaching tips and an answer sheet are included in the teacher's guide.
This resource is located on page 45 of the PDF document.