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Q: When metal is heated it gets bigger but when it cools it gets smaller - what is this process called?
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When an solid is heated does it go bigger or smaller?

bigger.


If a coin has a hole cut in it does the hole get bigger or smaller or stay the same when the coin is heated?

It gets bigger


What is the name of gas when water is heated?

heated water is called vapour. the process is called evaporation.


When water is heated rapidly changes into steam this process is called?

This process is called boiling.


What is it called when a solid changes to a gas when heated?

the process is called sublimation


What common process of change occurs when lava is heated?

This process is called melting.


What is heated liquid turned to gas called?

Evaporation is the process and the gas formed by liquid in heated condition is called vapours


What chemical process take place when sucrose is heated?

This process is called thermal decomposition.


When metal is heated and expands will the metal get larger or smaller?

Your answer is in the question. If something expands, it obviously gets bigger. Therefore, the metal will get larger.


What is the process when sugar is heated?

It melts. When sugar melts, its called caramelization.


Do particles get smaller or bigger when heated?

When particles are heated or cooled, they do not change size at all. They simply move with greater kinetic energy so the space between particles increases. This prompts the changes in size we see when substances are heated or cooled.


Why does a liquid vibrate when it is heated?

Well, it probably has something to do with the particles vibrating. When a particular state of matter is heated, is usually had to go through a process to change states. In fact, it always has to go through a process to change states. The process from gas to liquid is called evaporation, and needs a fair amount of heat to happen. The more the substance is heated, the faster, and bigger the vibration of the particles. They extract (get farther apart) and change states. This is probably the solution to your question. I hope I answered it well :)