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?

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

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?

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?

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?

The method of separating seeds of paddy from its stalks is called __________

Impurities settled at the bottom when muddy water was kept overnight in a bucket. The clear water was then poured off from the top. The process of separation used in this example is called____________

Tea leaves are separated from prepared tea by_______________

Insects can be separated from wheat by __________________

Husk from wheat flour is generally removed by ____________________

Grain and husk can be separated by the process of decantation.

A mixture of milk and water can be separated by filtration.

A mixture of chalk and water is separated by winnowing.

A mixture of wheat grains and wheat flour can be separated by sieving.

A mixture of tea leaves and milk can be separated by decantation.

Define the term condensation.

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

What is the use of strainer?

What is winnowing? Where is it used?

What is sieving? Where is it used?

How will you separate sand and water from their mixture?

Lemonade is prepared by mixing lemon juice and sugar in water. You wish to add ice to cool it. Should you add ice to the lemonade before or after dissolving sugar? In which case would it be possible to dissolve more sugar? 

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?

What is the principle of threshing?

What happens when sand and powdered leaves are being fallen at the same place?

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?

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?