Carbon dioxide (CO₂) is a gas that manufacturers deliberately add to champagne during its production: it is what gives it its sparkling quality. During fermentation, yeast converts...
Milk contains proteins, notably casein and the so-called whey proteins, which act as natural foam stabilizers. When milk is heated, these proteins migrate to the...
Each metal has a different intrinsic chemical reactivity, meaning its natural tendency to react with oxygen and moisture. Some metals, like iron, are naturally very...
Soap bubbles are made up of a thin film of water, soap, and air. Over time, the water they contain gradually evaporates into the surrounding...
Fire is a chemical reaction called combustion: it is simply a material that reacts quickly with oxygen, releasing a lot of energy. This energy comes...
Bronze is primarily an alloy of copper and tin, two metals that react with the air over time. It is mainly the copper that poses...
The water molecule can be imagined like a little "Mickey Mouse": one oxygen atom in the center and two small hydrogen atoms attached to it. The oxygen...
When we talk about gases like air, two things are closely related: volume and pressure. Air, primarily made up of constantly moving molecules, naturally occupies...
Your soda becomes fizzy thanks to carbon dioxide (CO₂) dissolved in the liquid. This gas is added under pressure during production, which forces the CO₂...
Water has several astonishing characteristics, such as the fact that it is one of the few substances that increases in volume when it freezes. Usually, substances become...
