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Measuring the Absorbance of Chlorophyll Solutions at Different Concentrations

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In this lesson, students will extract chlorophyll from spinach leaves and make different concentrations following the dilution method. Students will learn to compare the absorbance values obtained at various wavelengths using a spectrophotometer. They will understand that absorbance of a substance is directly proportional to its concentration in a solution. The goal of the lesson is to include investigating the linearity of the relationship and gaining insights into how changes in chlorophyll concentration affect absorbance.

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Grades: 9th Grade, 10th Grade, 11th Grade, 12th Grade
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A lesson to teach students how to collect, organize, interpret data, make inferences, raise awareness, and suggest possible solutions on the water quality of the waterbodies in the state of Arizona.