character: Galileo Galilei
topic: Early Theories of Gravity
grade: 6
subject: Foreign Language
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character: Isaac Newton
topic: Laws of Motion and Gravity
grade: 6
subject: Foreign Language
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character: Aristotle
topic: Ancient Theories of Motion
grade: 6
subject: Foreign Language
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character: Copernicus
topic: Heliocentric Theory
grade: 6
subject: Foreign Language
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