Class 6 Science Chapter 9, Methods of Separation in Everyday Life, follows Malli and Valli visiting farms across India—from Haryana and Punjab to Gujarat, Madhya Pradesh, Shillong and Puducherry—to learn how mixtures are separated using handpicking, threshing, winnowing, sieving, evaporation, sedimentation, decantation, filtration, churning and magnetic separation.
What Class 6 Science Chapter 9 Covers
Solid-from-Solid Separation Methods explains handpicking (removing stones from grain by size/colour/shape), threshing (beating stalks to free grains), winnowing (using wind/blowing air to separate lighter husk from heavier grain), sieving (separating particles of different sizes like bran from flour or stones from sand), and magnetic separation (removing iron nails/scrap from mixtures).
Solid-from-Liquid & Liquid Separation Methods covers evaporation (obtaining common salt from seawater), sedimentation and decantation (settling heavier mud/tea leaves and pouring off the liquid), filtration (using filter paper, cloth or earthen/bamboo filters to remove insoluble solids), and churning (extracting butter from curd).
Exercises in Chapter 9
- Summary key points, Keywords, and Let us enhance our learning chapter exercises.
- Learning further hands-on projects and inquiry activities.
Read Class 6 Science Chapter 9 Online
More Chapters
- Previous: Chapter 8: A Journey through States of Water
- Next: Chapter 10: Living Creatures: Exploring their Characteristics
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FAQ
What is the difference between threshing and winnowing?
Threshing is the process of beating harvested stalks to separate grains from them, whereas winnowing uses wind or blowing air to separate lighter husk from heavier grains.
How would you separate a mixture of sand, salt, and iron filings?
First use a magnet to remove the iron filings (magnetic separation), then add water to dissolve the salt and filter out the insoluble sand (filtration), and finally evaporate the filtrate to recover the salt (evaporation).