Here are 10 one-word answer type questions based on the subtopic “Sedimentation, Decantation and Filtration” from the chapter Separation of Substances in Class 6 NCERT Science, with answers and explanations included:
1. Question: What process allows heavier particles to settle at the bottom of a liquid?
Answer: Sedimentation
Explanation: In sedimentation, heavier solid particles settle down when left undisturbed in a liquid.
2. Question: What do we call the clear liquid poured out after sedimentation?
Answer: Decantation
Explanation: Decantation is the process of pouring out the upper clear layer without disturbing the sediment.
3. Question: What method is used to separate insoluble solids from liquids using a filter?
Answer: Filtration
Explanation: Filtration separates solid particles from liquids using a filtering medium like cloth or paper.
4. Question: Which tool is used to hold filter paper during filtration?
Answer: Funnel
Explanation: A funnel is used to support the filter paper and guide the filtrate during the filtration process.
5. Question: What is the clear liquid that passes through the filter paper called?
Answer: Filtrate
Explanation: Filtrate is the clean liquid that comes out after passing through the filter, leaving solids behind.
6. Question: What remains on the filter paper after filtration?
Answer: Residue
Explanation: Residue is the solid material left on the filter paper after filtration.
7. Question: What can be used at home to filter tea leaves?
Answer: Strainer
Explanation: A tea strainer is used to separate tea leaves from the liquid part of tea.
8. Question: Which separation method is used before filtration in muddy water?
Answer: Sedimentation
Explanation: Sedimentation is first used to allow mud particles to settle before filtering the clear water.
9. Question: What process is used to separate oil floating on water?
Answer: Decantation
Explanation: Oil can be removed from the top of water by decantation as it forms a separate upper layer.
10. Question: What is used in labs for fine filtration of liquids?
Answer: Filterpaper
Explanation: Filter paper with fine pores is commonly used in science labs to separate fine solid particles from liquids.
Let me know if you’d like question sets for Evaporation, Use of More Than One Method, or chapter revision next!
