Eli5: Kids messless markers 231 viewsDecember 31, 2023 Question100.55K August 17, 2023 0 Comments My kid has these colored markers that only work on special paper. If you write on anything else it does nothing. When you write on the special paper it’s clear for a split second then changes to the specific color. How do they work? In: 3 1 Answer ActiveNewestOldest Anonymous Posted August 17, 2023 0 Comments the special paper is acidic, and the “ink” in the markers is activated by the acidity. it’s the same basic mechanism behind a litmus test, though in that case the coloring agent is on the paper. Register or Login
Latest Answers