(cheerful music) - Welcome to Room 9 Summertime, our nation's largest classroom. My name is Ms. Turnage, and I am a teacher in the Ritenour School District in the St. Louis region. Today's lesson is a ...
To learn why, where, and how earthquakes happen, you need to familiarize your students with the interior of the Earth and a model called plate tectonics. The engine behind the earthquake machine is ...
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