Answer:
Increase the size of a very small system, allowing easier understanding of what is occurring.
Step-by-step explanation:
Models allow us to increase the size of a very small system, allowing easier understanding of what is occurring .
This can be explained with the help of an atom model. An atom model helps students understand what is happening inside the atom by making the atom large enough to be seen with the naked eye. Once the thing can be seen with the eyes it is easier for the brain to interpret chemical reactions or chemical charges inside the atoms.