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Ancient Paints Part 2: Lake Pigments

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A lesson that dives into the fusion of Art and Chemistry. Students will make their own pigments using common plants by using an acid-base reaction. They will test the effects of different solvents in extracting pigments, and check their experiments for colorfastness. This lesson can be used in conjunction with two other lessons as part of a unit on making paint. If desired, this lesson can be a fun way to use stoichiometry and calculate pH.

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Grades: 7th Grade, 8th Grade, 9th Grade, 10th Grade, 11th Grade, 12th Grade
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Students will combine science and art by using an alternative photographic process called cyanotypes or sun prints. After a short introduction to the history of cyanotypes and the process of creating