character: Riley
topic: The Effects of Rain on Soil Stability
grade: 4
subject: Science
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character: Jamie
topic: Understanding Erosion and Soil Composition
grade: 4
subject: Science
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character: Sam
topic: How Water Affects Ground Structures
grade: 4
subject: Science
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character: Taylor
topic: Rainwater and Plant Growth
grade: 4
subject: Science
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