MEDIUM
6th CBSE
IMPORTANT
Earn 100

What is winnowing? How it is done?

Important Questions on Separation of Substances

MEDIUM
6th CBSE
IMPORTANT
What is hand-picking? When is this method used?
MEDIUM
6th CBSE
IMPORTANT
Define saturated solution. How would you prepare a saturated solution of sugar in water?
MEDIUM
6th CBSE
IMPORTANT
What are the factors that affect the solubility of a solute?
HARD
6th CBSE
IMPORTANT

Recall and complete the concept map given below.

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MEDIUM
6th CBSE
IMPORTANT
How would you separate sugar that has been mixed with wheat flour? (Hint: Think about the size of the components.)
MEDIUM
6th CBSE
IMPORTANT
Rohan had kept three things – water, sand and salt separately to do an experiment. Somehow everything got mixed up. How can he separate all these things? (Hint: Salt will dissolve in water, will that help?)
HARD
6th CBSE
IMPORTANT
Do you think wheat bran can be separated from flour by hand-picking? If no, why not?
MEDIUM
6th CBSE
IMPORTANT

Name the method of separation shown in the pictures below. Also, label the different components.

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