character: Professor Green
topic: Understanding pH Levels and Their Effects
grade: 9
subject: Chemistry
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character: Dr. Blue
topic: Acid-Base Reactions and Their Applications
grade: 9
subject: Chemistry
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character: Ms. White
topic: The Importance of pH in Biological Systems
grade: 9
subject: Chemistry
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character: Mr. Brown
topic: Measuring pH: Methods and Tools
grade: 9
subject: Chemistry
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