character: Mr. Thompson
topic: Using a Balance for Accurate Mass Measurements
grade: 9
subject: Chemistry
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character: Mrs. Davis
topic: Understanding Precision and Accuracy in Experiments
grade: 9
subject: Chemistry
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character: Mr. Lee
topic: The Importance of Calibration in Scientific Instruments
grade: 9
subject: Chemistry
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character: Ms. Rodriguez
topic: Common Errors in Mass Measurements and How to Avoid Them
grade: 9
subject: Chemistry
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