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With Crayola Color Changeables markers you can change the ink from one color to another simply by drawing over the ink with the "magic wand".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.
Due to the nature of this item, it cannot be shipped by air under any circumstances. Please select ground shipping at time of checkout.
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