All get very hot.
A substance in the solid phase will typically expand when heated. Most substances when heated sufficiently will melt into a liquid, assuming that they do not combust or sublimate.
They expand due to the molecules speeding up.
They do something, or have a chemical reaction
Most substances expand when heated.
Most substances expand when heated.
They expand
electrons spontaneously "jump" from a lower orbital to a higher one
expand
the volume of the solid would go down , thus making the solid into a liquid.
The process is call decomposition.
generally, the density of a substance decreaces when heated, with the exception of ice, which is less dense than water.
It expands