Chapter 9. Methods of Separation in Everyday Life Class 6 Science Curiosity [LATEST] Solutions NCERT TextBookn Questions With Answers in English - CBSE Study
NCERT Solutions for Class 6 Science Curiosity are carefully prepared according to the latest CBSE syllabus and NCERT textbooks to help students understand every concept clearly. These solutions cover all important Chapter 9. Methods of Separation in Everyday Life with detailed explanations and step-by-step answers for better exam preparation. Each NCERT TextBookn Questions With Answers is explained in simple language so that students can easily grasp the fundamentals and improve their academic performance. The study material is designed to support daily homework, revision practice, and final exam preparation for Class 6 students. With accurate answers, concept clarity, and structured content, these NCERT solutions help learners build confidence and score higher marks in their examinations. Whether you are revising a specific topic or preparing an entire chapter, this resource provides reliable and syllabus-based guidance for complete success in Science Curiosity.
Class 6 English Medium Science Curiosity All Chapters:
Chapter 9. Methods of Separation in Everyday Life
2. NCERT TextBookn Questions With Answers
Chapter 9. Methods of Separation in Everyday Life
NCERT Textbook Exercise
The following solutions are prepared according to the latest NCERT Curiosity (Class 6 Science) textbook. The answers are written in simple English, keeping the CBSE pattern in mind to help students understand the concepts clearly and perform well in examinations.
Question 1. What purpose does handpicking serve in the process of separation?
Options:
(i) Filtration
(ii) Sorting
(iii) Evaporation
(iv) Decantation
Answer: (ii) Sorting
Explanation: Handpicking is used to remove unwanted solid particles such as stones or husk from grains by picking them with the hand.
Question 2. Which of the following substances are commonly separated using the churning method?
Options:
(i) Oil from water
(ii) Sand from water
(iii) Cream from milk
(iv) Oxygen from air
Answer: (iii) Cream from milk
Explanation: Churning is commonly used to separate butter or cream from curd or milk.
Question 3. Which factor is usually essential for filtration?
Options:
(i) Apparatus size
(ii) Presence of air
(iii) Pore size
(iv) Temperature of the mixture
Answer: (iii) Pore size
Explanation: A filter works because its pores allow the liquid to pass while trapping insoluble solid particles.
Question 4. State with reason whether the following statements are True or False. Correct the false statements.
(i) Salt can be separated from salt solution by keeping it under the Sun.
Answer: True.
Reason: Water evaporates in sunlight, leaving salt behind.
(ii) Handpicking should be used only when the quantity of one component is less.
Answer: True.
Reason: Handpicking is suitable only when the unwanted particles are present in small amounts and are easily visible.
(iii) A mixture of puffed rice and rice grains can be separated by threshing.
Answer: False.
Correct Statement: A mixture of puffed rice and rice grains can be separated by handpicking or winnowing, not by threshing.
(iv) A mixture of mustard oil and lemon water can be separated by decantation.
Answer: True.
Reason: Oil and water do not mix. After settling, the upper oil layer can be separated by decantation.
(v) Sieving is used to separate a mixture of rice flour and water.
Answer: False.
Correct Statement: Sieving is used to separate solid particles of different sizes. Rice flour mixed with water cannot be separated by sieving.
Question 5. Match the mixtures in Column I with the correct method of separation in Column II.
| Column I | Correct Method |
|---|---|
| Gram flour mixed with black gram | Sieving (d) |
| Chalk powder mixed with water | Filtration (e) |
| Corn mixed with potatoes | Handpicking (a) |
| Iron powder mixed with sawdust | Magnetic Separation (b) |
| Oil mixed with water | Decantation (c) |
Question 6. In what situations would you use decantation instead of filtration to separate solids from liquids?
Answer:
Decantation is used when the solid particles are heavy and settle at the bottom after keeping the mixture undisturbed for some time. The clear liquid is then poured carefully into another container. It is commonly used for separating muddy water or washing rice and pulses.
Question 7. Can you relate the presence of nasal hair to any separation process?
Answer:
Yes. Nasal hair acts like a natural filter. It traps dust, pollen, and other harmful particles present in the air before they enter our lungs. This process is similar to filtration.
Question 8. During the COVID-19 pandemic, all of us wore masks. Generally, what material are they made of? What is the role of these masks?
Answer:
Most masks are made of multiple layers of non-woven fabric or special filtering material.
The masks:
- Filter dust, germs, and tiny droplets.
- Reduce the spread of viruses and bacteria.
- Protect both the wearer and nearby people from infections.
Explanation: Like a filter paper, the mask allows air to pass while trapping harmful particles.
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