changes of state

changes around us ,physical changes, grade 7

1. INSTRUCTIONAL DESIGNING AND PRESENTATION SKILLS CHANGES OF STATE BY S.M.SOUNTHARYA 21UED033 II B. E d 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   C hange of a solid into a liquid when heat is applied ICE WATER

6. VAPORIZATION C onversion 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 T he 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.

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