In which temperature condition does clear ice typically form?

Clear ice typically forms in conditions close to the freezing point, specifically between -10 to 0 degrees Celsius. This temperature range provides the right conditions for moisture to freeze smoothly, resulting in a transparent and solid ice formation. When temperatures are near freezing, water has sufficient energy to flow and spread out before solidifying, which minimizes air bubbles and impurities, leading to the clarity characteristic of clear ice.

At colder temperatures, such as those below -15 degrees Celsius, the freezing process can trap more air and impurities, often resulting in more opaque ice formations. Similarly, temperatures above 0 degrees Celsius do not support the formation of ice, as water remains in a liquid state. Therefore, the best conditions for the formation of clear ice are indeed in the range of -10 to 0 degrees Celsius, where the freezing process promotes clarity and density.