The first color will be red - generally a strong red, becoming more orange as the metal gets hotter.
because red is the coldest visible color.
copper white
metal is a solid that expands when heated also of course when liquids are heated and change state into a gas they expand but metal is cool because it expands before it changes state
goes bigger
When a fork is heated it may loose its temper what happens to the metal in this state?
The cause of the color is light (specific spectral lines) emitted by the metal from the salt at high temperatures.
Yes, but you need to know the metal of the chloride; each metal has a specific color in the flame test.
because red is the coldest visible color.
Answer No, not in itself. Metal can be used as a component in artificial light sources, and metal can be used to reflect light, but metal does not make light. Answer Metals, when heated to a certain temperature, can emit light. For example, Light bulbs have filaments of Tungsten in them. Electricity flowing through the Tungsten heats it up and it emits light.
Aluminum
It came from the color of the metal.
metal or light blue
No, the volume of a metal increases as it is heated. It expands.
That's not a question. But it is something resembling a true statement (though it's not phrased very well).
Silver is one of the metals having light grey colour
metal
Because the color spectra of stars indicate which elements are present.