Curated OER
How to Make Invisible Ink
Students learn how to make two types of invisible ink. In this invisible ink lesson plan, students will make two types of invisible ink using common house hold items. They will then write a paper comparing and contrasting each type of ink.
Teach Engineering
Basically Acidic Ink
If you don't want to drink red cabbage juice, here's another use for it—a decoder! Using vinegar and ammonia-based window cleaning liquids as invisible inks, scholars create designs in the second lesson of the series. Red cabbage juice...
Curated OER
Ink
Here is an interesting lesson that has learners make ink from two common food items. First, they make ink from beets, then they make ink from onions. The recipes necessary for each are present in the plan. The special thing about the ink...
Teach Engineering
Basically Acids
Base your lesson plan on acids and bases on an informative resource. The first installment of a five-part module on the science behind Harry Potter has individuals investigate acid/base chemistry with the use of invisible inks. They also...
Teach Engineering
Chromatography Lab
Groups use alcohol and chromatography paper to separate the color components of black ink. The purpose of the activity is to allow the class to become aware that mixtures exist in hidden places.