character: Dr. Wave
topic: Effects of Water on Movement
grade: 4
subject: Science
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character: Aqua Explorer
topic: How Water Can Push and Pull Objects
grade: 4
subject: Science
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character: Captain Current
topic: Water Currents and Their Impact on Movement
grade: 4
subject: Science
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character: Splash Scientist
topic: The Role of Water in Erosion and Transportation
grade: 4
subject: Science
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