Class 6 Science
Separation of Substances
Question 1.
Why do we separate materials?
Question 2.
What are the different methods of separation?
Question 3.
What is handpicking method of separation and when do we use it?
Question 4.
What is threshing and how is it done?
Question 5.
What is winnowing and how is it done?
Question 6.
What is sieving and why is it used?
Question 7.
When the heavier component in a mixture settles after water is added to it, the process is called ____________.
Question 8.
How can you separate a mixture of oil and water?
Question 9.
The process of conversion of water into its vapour is called __________.
Question 10.
The process of conversion of water vapour into its liquid form is called ___________.
Question 11.
Why do we need to separate substances?
Question 12.
When can we use handpicking as a method of separation?
Question 13.
Explain the process of threshing.
Question 14.
Explain the process of winnowing.
Question 15.
Which separating method would be most suitable for separating a mixure of a solid and liquid like tea leaves and water?
Question 16.
What is filter paper and how to use it for separation of mixtures?
Question 17.
Give some examples where we use the method of filtration at home.
Question 18.
How do we get salt from sea water?
Question 19.
What is saturated solution?
Question 20.
Why sieving is used in a flour mill?
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All About Daily Practice Problems on Class 6 Science Separation of Substances NCERT Chapter 3
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