ICSE Class 6 Answered

The phenomenon of change from one state of matter to another, and then back to the original state is called the Interconversion of states of matter.

It is affected by changes in the conditions such as -

Changing the temperature.

Increasing or decreasing the pressure.

Changing both temperature and pressure.

 

              Interconversion of states of matter

 

For example:

Ice (solid) on increasing the temperature i.e, at room temperature changes into water (liquid), on further heating changes to steam (gas).