character: Thomas Edison
topic: Inventions in Electricity
grade: 6
subject: Science
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character: Nikola Tesla
topic: Alternating Current vs. Direct Current
grade: 6
subject: Science
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character: Alexander Graham Bell
topic: Inventions in Communication Technology
grade: 6
subject: Science
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character: Michael Faraday
topic: Electromagnetism and Electricity
grade: 6
subject: Science
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