Chemistry of color change kit
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In this hands-on kit students explore the science behind this “magic”. They compare the pH of the solution in the magic wand to solutions of known pH; determine whether the magic solution is acid or base; create and compare chromatograms of treated and untreated marker ink and more. Developed by Tim Graham. Grades 7-11.
Includes:
Crayola Changeables Markers, chromatography paper, pH paper, Na2SO3, isopropyl alcohol, HCI, NaOCI, NaOH, swabs, index cards, instructions.