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Lesson 10 Introducing Earthquakes Inquiry 10.1 Thinking About Earthquakes 1. What do you think causes earthquakes? 2. What do you think are some of the effects of an earthquake? 3. What risks do you think an individual might face during or after an earthquake? 4. How do you think scientists study earthquakes? Lesson 10 Introducing Earthquakes Homework Read, “What is an Earthquake” on page 116. 1. What is an earthquake? The shaking and vibrating of the earth. 2. What causes most earthquakes? Large and sudden releases of energy cause earthquakes. This is due to the movement of Tectonic Plates. 3. What causes energy to be released from the earth? The energy is released when movement occurs along large “cracks” in the earth’s outer layer. 4. What is a more uncommon cause of earthquakes? About 5% of earthquakes are related to volcanic activity. 5. What is a seismologist? Scientists who study earthquakes.