MEDIUM
6th CBSE
IMPORTANT
Earn 100

Why is sieving not used to separate small stones from rice grains? 

Important Questions on Separation of Substances

HARD
6th CBSE
IMPORTANT
Head Start Science 6>Chapter 3 - Separation of Substances>EXERCISES>Q 3
Why is either winnowing, sieving or handpicking techniques not used for the separation of a mixture of sand and salt? 
MEDIUM
6th CBSE
IMPORTANT
Head Start Science 6>Chapter 3 - Separation of Substances>EXERCISES>Q 4

Label the given diagrams: 

Question Image

 

MEDIUM
6th CBSE
IMPORTANT
Head Start Science 6>Chapter 3 - Separation of Substances>EXERCISES>Q 1
What is the need to separate different components of a mixture? Give examples.
MEDIUM
6th CBSE
IMPORTANT
Head Start Science 6>Chapter 3 - Separation of Substances>EXERCISES>Q 2
How do we separate the grains after harvesting the wheat/rice crop? Explain the various methods adopted by the farmers.
HARD
6th CBSE
IMPORTANT
Head Start Science 6>Chapter 3 - Separation of Substances>EXERCISES>Q 3
What is the principle used in the method of sedimentation and decantation used for the separation of insoluble solid components from water?
MEDIUM
6th CBSE
IMPORTANT
Head Start Science 6>Chapter 3 - Separation of Substances>EXERCISES>Q 4
Explain with example any two methods of separation used in the kitchen to clean pulses before cooking.
HARD
6th CBSE
IMPORTANT
Head Start Science 6>Chapter 3 - Separation of Substances>EXERCISES>Q 1
You are given a mixture of sand, water and mustard oil. How will you separate the components of the mixture? 
HARD
6th CBSE
IMPORTANT
Head Start Science 6>Chapter 3 - Separation of Substances>EXERCISES>Q 2
How will you separate common salt from a mixture of common salt and chalk powder?