character: Thomas Edison
topic: Inventive Processes in Industry
grade: 6
subject: Science
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character: Nikola Tesla
topic: Inventions and Innovations in Electricity
grade: 6
subject: Science
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character: Henry Ford
topic: Industrial Revolution and Mass Production
grade: 6
subject: Science
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character: Alexander Graham Bell
topic: Inventing the Telephone and Communication Advances
grade: 6
subject: Science
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