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Transcript of science project
How will different types of black ink be affected when soaked in rubbing alcohol for one hour? The student came up with the hypothesis that the black ink would run down the paper towel, because the rubbing alcohol is pulling it down, and mix with the rest of the rubbing alcohol in the bottom of the cup. When the alcohol would mix in with the ink, the student also thought that there would be a marbled effect with a black to blue shade of ink. The next picture will illustrate the student's hypothesis. The materials the student used in the lab are:
a black permanent marker
a black washable marker
After ten minutes of soaking. What the student observed about half way through the process. The student observed that the permanent marker is starting to have a dark purple tone to it and the washable marker has a blue to green tone to it. Illustration of the Results Conclusion: The student used rubbing alcohol because it would travel up through the paper towel, and separate the colors in each marker used. For washable markers, black ink is created by combining multiple colors together. The student knows this because as the ink traveled up through the paper towel, it left behind multiple colors in layers. For the permanent black ink, the colors left behind were purple and black. This lets the student know that the ink was not made up of many colors, or that there is something in the marker that does not let the colors come through, This would happen because the marker is permanent, and it would be made up of different materials to keep the marker permanent. With a washable marker, you would not need the ingredient used in the permanent marker to make the marker permanent. This could be the effect to the different colors of ink on the paper towel. Question: