Cream is mainly made up of water and fats from milk. These fats are present in the form of tiny droplets surrounded by a thin...
When you add an ice cube to your drink, there is necessarily a transfer of heat, from the liquid (hotter) to the ice cube (colder). It’s a...
Glass is primarily composed of silica (silicon dioxide), a material derived from sand. Depending on the molecular structure, scratch resistance varies significantly. Glass with strong, well-organized, and...
Flint is a variety of very hard rock mainly composed of silica, a mineral found in quartz. It has a glassy texture, which means that...
This phenomenon called thermochromism is simply the ability of certain liquids to change color when their temperature rises or falls. Basically, heat makes the molecules...
The foam you see in your bath is mainly due to the presence of surfactants, molecules found in soap and shower gels. These somewhat special...
When light touches a crystal, certain electrons absorb specific colors (certain wavelengths, that is). They capture the light energy and jump to a higher level, entering an...
The adhesives used in stickers are mainly composed of polymers. These large molecules with long, flexible chains provide a certain flexibility, allowing them to spread...
Coffee contains many chemical components such as caffeine, essential oils, acids (for example chlorogenic acid), proteins, as well as aromatic compounds that give coffee its...
Leather is a natural material obtained by transforming animal hide, mainly bovine, but also ovine, caprine, or porcine. It is made up of collagen fibers, a protein...
