character: Ms. Blue
topic: Water Purification Techniques: Engage in Field Experiments
grade: 11
subject: Chemistry
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character: Mr. Green
topic: Environmental Chemistry: Analyzing Water Quality
grade: 11
subject: Chemistry
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character: Dr. Smith
topic: Innovative Filtration Methods for Clean Water
grade: 11
subject: Chemistry
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character: Ms. White
topic: Chemical Treatments for Water Purification
grade: 11
subject: Chemistry
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