Colloidal silica

Colloidal silica is like very tiny little balls made up of teeny tiny particles of silica. They are so small that you cannot see them with your eyes or even with a microscope. Because they are so small, they can actually float around in a liquid, kind of like sand in water.

The word 'colloidal' means that the little balls are evenly spread throughout the liquid, and they do not settle down to the bottom like sand would. This is because the little balls are attracted to the liquid molecules, which stop them from sinking to the bottom.

Colloidal silica is used in many different industries, such as making paper, paints, and even some foods. It is also used in medicine to help create different types of drugs.

So basically, colloidal silica is these tiny little balls made of a mineral that can float around in liquids and help with different things, depending on what they are used for.