The best way to carry out the filtration of the mixture of water and sand is to use filter paper not cloth, why?

Name and describe briefly a method which can be helpful in separating a mixture of husk from grains. What is the principle of this method?

How will you separate sand and water from their mixture?

How will you separate husk or dirt particles from a given sample of pulses before cooking?

Why do we need to separate different components of a mixture? Give two examples.

Write four materials that can be used for the process of filtration.

When a hot saturated solution is heated, crystals will be formed. Is it correct? If no, correct the statement.

A method is used to separate the components of a mixture that are of different sizes. Name it.

Rohit and Raman are best friends. They study in different class but in the same standard, Class VI. One day, they were playing in the school. They were throwing sand on each other. Suddenly Raman asked to Rohit if we mix salt in sand, then how will you separate the mixture of sand and salt?
Rohit was quite intelligent, his science teacher had completed the chapter separation of substances last week. So, he immediately explained the method of separation. Rohit told him that his teacher had shown this activity in the class and same method is applicable for the separation of mixture of sugar and sand.
Read the passage carefully and answer the following questions:
(a) How a mixture of sand and salt is separated?
(b) Name the method(s) which are applicable in the separation of this mixture.
(c) What values are shown by Rohit?

Ashraf's grandmother is a diabetic patient. Her doctor advised him to control your sugar level in diet by taking less sugar and less fat content. So, she always prefer to take lassi instead of milk. Ashraf asked her mother then she explained the process of making lassi by removing cream from the curd. She told him this method is known as churning.
Read this passage and answer the following questions:
(a) Explain the process of churning.
(b) What is the purpose of this method?
(c) What values are shown by Ashraf?

Both Sarika and Mohan were asked to make salt solution. Sarika was given a teaspoonful of salt and half a glass of water whereas, Mohan was given twenty teaspoonful of salt and half a glass of water.
(a) How would they make salt solutions?
(b) Who would be able to prepare saturated solution?

Paheli asked for a glass of water from Boojho. He gave her a glass of ice cold water. Paheli observed some water droplets on the outer surface of the glass and asked Boojho, how these droplets of water were formed? Which of the following should be Boojho's answer?

During summer, Boojho carries water in a transparent plastic bottle to his school. One day, he left his bottle in the school. The bottle still had some water left in it. The next day, he observed some water droplets on the inner surface of the empty portion of the bottle. These droplets of water were formed due to

In an activity, a teacher dissolved a small amount of solid copper sulphate in a tumbler half-filled with water. Which method would you use to get back solid copper sulphate from the solution?

You might have observed the preparation of ghee from butter and cream at home. Which method(s) can be used to separate ghee from the residue?
(i) Evaporation
(ii) Decantation
(iii) Filtration
(iv) Churning
Which of the following combinations is the correct answer?

While preparing chapatis, Paheli found that the flour to be used was mixed with wheat grains. Which out of the following is the most suitable method to separate the grains from the flour?

Four mixtures are given below:
(i) Kidney beans and chickpeas
(ii) Pulses and rice
(iii) Rice flakes and corn
(iv) Potato wafers and biscuits
Which of these can be separated by the method of winnowing?

Which amongst the following methods would be most appropriate to separate grains from bundles of stalks?

Which of the following mixtures would you be able to separate using the method of filtration?

Boojho's grandmother is suffering from diabetes. Her doctor advised her to take 'Iassi' with less fat content. Which of the following methods would be most appropriate for Boojho to prepare it?

Paheli bought some vegetables such as french beans, lady's finger, green chillies, brinjals and potatoes all mixed in a bag. Which of the following methods of separation would be most appropriate for her to separate them?