character: Circuitry Sam
topic: Exploring Electrical Circuits
grade: 3
subject: Computer Science
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character: Professor Plug
topic: Basics of Circuit Components
grade: 3
subject: Computer Science
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character: Wattson the Wise
topic: Understanding Voltage and Current
grade: 3
subject: Computer Science
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character: Sparky the Squirrel
topic: Building Simple Circuits
grade: 3
subject: Computer Science
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