Question

the state of matter can be changed by .....,..or ......
​

Answer 1

Answer:

Changes of state are physical changes. They occur when matter absorbs or loses energy. Processes in which matter changes between liquid and solid states are freezing and melting. Processes in which matter changes between liquid and gaseous states are vaporization, evaporation, and condensation.

Answer 2

The state of matter can be changed by the following ways :

1. By melting,
2. By boiling,
3. By freezing.

The states of modern matter :

1. Solid.
2. Liquid.
3. Gas.

Explanation :

1. Solid can be changed by: Melting.
2. Liquid can be changed by: Boiling.
3. Gas can be changed by: Freezing.

Example :

1. Solid: Ice.
2. Liquid: Water.
3. Gas: Water vapour.