MEDIUM
6th CBSE
IMPORTANT
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What is the use of winnowing? Can a mixture of pebbles and sand be separated using this method?

Important Questions on Separation of Substances

HARD
6th CBSE
IMPORTANT
Science Based on the Rationalised NCERT Content>Chapter 3 - Separation of Substances>Exercises>Q 4

The flow diagram shows the steps involved in the separation of a mixture of sand and sugar. Observe it and fill in the blanks at A, B, C and D.

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MEDIUM
6th CBSE
IMPORTANT
Science Based on the Rationalised NCERT Content>Chapter 3 - Separation of Substances>Exercises>Q 5
What do you mean by saturated solution and unsaturated solution?
EASY
6th CBSE
IMPORTANT
Science Based on the Rationalised NCERT Content>Chapter 3 - Separation of Substances>Exercises>Q 1

Differentiate between:

Homogeneous and heterogeneous substances

MEDIUM
6th CBSE
IMPORTANT
Science Based on the Rationalised NCERT Content>Chapter 3 - Separation of Substances>Exercises>Q 2
Describe sedimentation and decantation. What kind of mixtures can be separated by decantation?
MEDIUM
6th CBSE
IMPORTANT
Science Based on the Rationalised NCERT Content>Chapter 3 - Separation of Substances>Exercises>Q 3
What happens to the solubility of gases on increasing temperature? Give an example to support your answer.
MEDIUM
6th CBSE
IMPORTANT
Science Based on the Rationalised NCERT Content>Chapter 3 - Separation of Substances>Exercises>Q 4
Differentiate between pure substances and mixture.
MEDIUM
6th CBSE
IMPORTANT
Science Based on the Rationalised NCERT Content>Chapter 3 - Separation of Substances>Exercises>Q 4
Differentiate between threshing and winnowing.
MEDIUM
6th CBSE
IMPORTANT
Science Based on the Rationalised NCERT Content>Chapter 3 - Separation of Substances>Exercises>Q 4
Distinguish between evaporation and condensation.