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Methods of Separation - Filtration Video Lecture | Crash Course for Class 6

FAQs on Methods of Separation - Filtration Video Lecture - Crash Course for Class 6

1. What is filtration and how does it work?
Ans.Filtration is a method of separating solid particles from a liquid or gas using a filter. The filter allows the liquid or gas to pass through while trapping the solid particles. When a mixture is poured through the filter, the solid remains on the filter paper, and the clear liquid that passes through is called the filtrate.
2. What are some common examples of filtration in everyday life?
Ans.Common examples of filtration include making coffee, where water passes through coffee grounds, and using a strainer to separate pasta from water. Additionally, water purification systems often use filters to remove impurities, and air purifiers filter dust and allergens from the air.
3. What are the materials used for filtration?
Ans.Materials commonly used for filtration include filter paper, cloth, sand, and various types of membranes. Each material has different pore sizes, which determine what particles can be filtered out. For example, filter paper is used for finer filtration, while sand can be used for coarser materials.
4. Why is filtration an important method of separation?
Ans.Filtration is important because it helps in purifying substances, making them safe for consumption or use. It is widely used in industries for water treatment, air purification, and food processing, ensuring that harmful particles are removed and the product is clean and safe.
5. How is filtration different from other separation methods like evaporation or distillation?
Ans.Filtration is different from evaporation and distillation because it is specifically designed to separate solids from liquids or gases, while evaporation is used to separate a liquid from a solution by turning it into vapor, and distillation separates liquids based on their boiling points. Each method serves a unique purpose depending on the nature of the mixture being separated.
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