2008-11-26T14:24:11+00:00 91 TimS 5 "Earthquake!" is a collection of lessons, activities, research ideas, and resource suggestions on the subject of earthquakes. With activities ranging from building a seismograph to predicting and preventing earthquakes. The pages aren't visually appealing, but they are clear and easy to follow. 2008-11-26T14:24:11+00:00 3 75