Värvimuutusena
Värvimuutusena, meaning "as a color change" in Estonian, describes a phenomenon where an object or substance alters its apparent color. This can occur due to a variety of physical and chemical processes. In the realm of physics, color changes are often associated with the interaction of light with matter. For example, temperature can induce color changes in certain materials, a principle utilized in mood rings and thermochromic paints. Light itself can also affect perceived color; for instance, the same object can appear differently under incandescent versus fluorescent lighting.
Chemically, color changes are frequently indicative of a reaction taking place. Indicators in chemistry, such as