Useful facts about States of Matter

A material is any substance, which is used to make an object. Materials are made up of different types of matter. Materials can be natural or man-made. Molecules are compactly arranged in solids, loosely packed in liquids and are far apart in gases.

Summery

1. A material is any substance, which is used to make an object.

2. Materials are made up of different types of matter.

3. Materials can be natural or man-made.

4. Matter exists in three states—solid, liquid and gas.

5. Molecules are compactly arranged in solids, loosely packed in liquids and are far apart in gases.

6. By changing the temperature or pressure the three states can be interchanged.

7. The change of state from liquid to gas is called evaporation.

8. The change of state from gas to liquid is called condensation.

9. The change of state from liquid to solid is called solidification.

10. Sublimation is the process in which a solid substance changes directly into its gaseous state on heating and from gaseous state to solid state on cooling.

11. Solids have a definite shape and volume, and cannot be compressed.

12. Liquids have no definite shape but have a definite volume, and can flow. They can be compressed negligibly.

13. Gases have neither a definite shape nor definite volume, and can flow freely. They can be easily compressed