character: Robert Boyle
topic: Contributions to Modern Chemistry and Physics
grade: 9
subject: Physics
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character: Antoine Lavoisier
topic: Law of Conservation of Mass
grade: 9
subject: Physics
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character: Isaac Newton
topic: Laws of Motion and Gravity
grade: 9
subject: Physics
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character: Dmitri Mendeleev
topic: Periodic Table of Elements
grade: 9
subject: Physics
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