NCERT Solutions for Class 6 Science Chapter 5
Important NCERT Questions
Class 6th Chapter 6 Separation of Substances
NCERT Books for Session 2022-2023
CBSE Board and State Board
Questions No: 7
How would you obtain clear water from a sample of muddy water?
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Following steps are required to obtain clear water from muddy water:
• Allow muddy water to stand undisturbed in a container.
• After sometime, mud settles at the bottom of the container. This process is called sedimentation.
• Upper layer is clear water.
• Pour the clear water gently in another container. This process is called decantation.
• To remove finer impurities we can filter this water again with the help of filter paper. This process is called filtration.
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1. Settling: Let muddy water sit undisturbed to allow heavier particles to settle at the bottom, while clearer water rises.
2. Decantation: Gently pour off clearer water from the top into another container, leaving sediment behind.
3. Filtration: Pass the decanted water through a cloth or fine sieve to remove finer particles.
4. Repeat: If needed, repeat settling and decantation for clearer water.