The only things that won't melt at high temperature are those that decompose first. For instance, wood will burn long before it melts! Many many things decompose at high temperatures before they melt. If it doesn't decompose first, everything will eventually melt.
a low temperature will freeze the substance, a high temperature will melt or turn the substance into vapor
no
At room temperature, the physical properties of substances can change. For example, some substances may melt, freeze, evaporate, or condense. These changes can affect properties like color, texture, and state of matter.
Yes you can melt it. But you want a high temperature.
It does melt.
ice can melt at room temperature. Anything that is liquid at room temperature would, in its frozen state, melt at room temperature. Oils, beverages and mercury - if in a frozen state - would melt when exposed to room temperature.
Do you mean clay triangle? This is used in the Chemistry Laboratory for holding a clay crucible when heating substances to high temperature to melt them.
When you get to a high enough temperature.
Yes.
The metal will melt if you do that.
Rock exposed to very high temperature and pressure will soften or melt.
If the temperature is too high, the rock will melt into magma and form igneous rock instead of metamorphic rock. Metamorphic rocks form under high pressure and temperature conditions, but if the temperature becomes too high, the rock will not be able to maintain its solid state and will melt.