This document discusses different types of changes of state that matter can undergo. It defines melting as a solid changing into a liquid when heat is applied, vaporization as a liquid or solid changing into a gas, and freezing as the opposite process of a liquid changing into a solid. Condensation is described as a gas changing back into a liquid, and sublimation is defined as a solid changing directly into a gas without passing through the liquid phase. Crystallization is explained as the transformation of a liquid or solution into an ordered solid crystal structure. Examples are provided for each type of change of state.

1. INSTRUCTIONAL
DESIGNING AND
PRESENTATION SKILLS
CHANGES OF STATE
BY
S.M.SOUNTHARYA
21UED033
II B.Ed Physical science and English

2. CHANGES OF
STATE

3. A physical change in a matter is
referred to as a change of
condition.
WHAT IS A CHANGE?

4. “
SOME OF THE CHANGES OF STATE
⬢ Solid → to Liquid - Melting
⬢ Liquid → to Gas - Vaporization
⬢ Liquid → to Solid - Freezing
⬢ Gas → to Liquid - Condensation
⬢ Solid → to Gas - Sublimation

5. MELTING
Change of a solid into a liquid when heat is
applied
ICE WATER

6. VAPORIZATION
Conversion of a substance from the liquid or solid phase into
the gaseous (vapour) phase.

7. FREEZING
Freezing is the process in which something
changes from liquid to solid as the
temperature becomes lower.
WATER ICE

8. CONDENSATION
The process where water vapor becomes liquid.
In simple words gas changes into liquid.

9. SUMBLIMATION
Sublimation is the transition of a substance directly
from the solid phase to the gas phase,without passing
through the intermediate liquid phase

10. CRYSTALLIZATION
⬢ Crystallization is the physical transformation of a
liquid, solution to a crystal, which is a solid with
an ordered internal arrangement of molecules, ions,
or atoms.
⬢ Extraction of salt from sea water.

11. Click me !
https://youtu.be/ZnizM4qb06I