There are several ways that you could investigate the composition of inks. This is an outline of the required steps to undertake one of these methods. It is important in this practical activity to ...

Investigate a variety of black ink markers, and find out why they look black. Blank inks are usually mixtures of a variety of colored ink pigments in liquid solvents. Chromatography is a technique ...

This is because the spots in the brown ink are at the same heights (and have the same R f value) as the reference inks. R f values can be used to identify unknown chemicals if they can be compared ...

Steve Spangler reveals the secrets of color, with amazing experiments you can do at home. He’ll show you how to create clouds ...