character: Seismologist Sam
topic: Understanding Seismic Waves
grade: 9
subject: Science
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character: Dr. Andrew
topic: Types of Seismic Waves
grade: 9
subject: Science
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character: Professor Earth
topic: Impact of Seismic Activity on Buildings
grade: 9
subject: Science
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character: Geologist Jane
topic: Locating Epicenters of Earthquakes
grade: 9
subject: Science
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