it doesnt change its color
If you think to black soot this is formed from tiny carbon particles.
The black deposit produced represents soot particles, heated to incandescence. It comes about when the combustion of air is insufficient.
Soot
yes, Egyptians did invent black ink.
Black carbon soot is deposited on the porcelain
If the flame of the burner hasn't sufficient oxygen black carbon soot is deposited on the porcelain laboratory ware.
it doesnt change its color
Can you put porcelain on flame? Porcelain tiles do not contain plastic or organic substances of any kind and are inert if subjected to high temperatures. Therefore, they are not in any way combustible or flammable and cannot be damaged by cigarettes, embers, boiling liquids, or flames
A metaphor is a way of speaking as to not take the word or words used at its true meaning. An example for soot may be; the porcelain soot on her face.
Producing soot by burning something is a chemical change, but when it is deposited on metal (or anything else), that is a not a chemical change.See the Related Questions to the left for more information.
soot
Soot is often produced when burning wood.
Soot is a noun. It is the black residue left behind by burning some substances.
The formation of black soot indicates that the combustion is not receiving enough oxygen and is incomplete. Black soot is made from mainly carbon.
I think you might be talking about soot. Soot is the leftover stuff from when wood or other materials are burnt.
The term "newest" in relation to chimney dirt refers to the layer of soot that is currently being deposited in the chimney. As newer soot gets deposited, it pushes the older layers further down, creating this distinction. However, the term "newest" is not commonly used in English to describe chimney dirt.