NOTES ON IS MATTER AROUND US PURE

Class: 9 
Subject: Science Chapter: 02 – Is matter around us pure?
(separation of Mixtures)

1. Define the following terms :

a. Evaporation is
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b. Filtration is
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c. Centrifugation is
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d. Crystallisation is
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e. Sublimation is
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f. Chromatography is
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2. Write the difference between :
Distillation  and  Fractional distillation

3. What are the applications of Chromatography and Centrifugation
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