Class 6 Chapter 5 Separation of Substances

Short answer type question

Question 1.  What is a strainer?

Question 2.  Name the method used to separate cream from curd.

Question 3.  You are given a mixture of salt and sand. Can you separate them by picking?

Question 4.  Define evaporation and condensation.

Question 5.  What do you mean by sieving? Give an example.

Question 6.  Define the term handpicking.

Question 7.  How will you separate oil and water from their mixture?

Question 8.  Define saturated solution.

Long answer type question

Question 1.  What is filtration? Where filtration used give two examples.

Question 2.   What is threshing?

Question 3.   Explain the method that can be used to separate

1. Wheat, sugar and stalk
2. Water and petrol
3. Sand and salt

Question 4.  What is winnowing and why it is needed?

Question 5.  Explain the process of separating salt and water.

Question 6.  How will you separate salt from water from its solution?

Question 7. What is sieving? Give it two uses.

Question 8. Explain the process of sedimentation and decantation