character: Nicolaus Copernicus
topic: Astronomer Who Formulated a Heliocentric Model
grade: 3
subject: History
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character: Galileo Galilei
topic: Astronomer Who Supported Heliocentrism
grade: 3
subject: History
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character: Johannes Kepler
topic: Scientist Known for Laws of Planetary Motion
grade: 3
subject: History
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character: Isaac Newton
topic: Physicist Who Formulated the Laws of Motion and Universal Gravitation
grade: 3
subject: History
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