Class 6 Exam > Class 6 Videos > Methods of Separation : Threshing - Seperation of Substances - CBSE Class 6 Science
Methods of Separation : Threshing - Seperation of Substances - CBSE Class 6 Science Video Lecture
FAQs on Methods of Separation : Threshing - Seperation of Substances - CBSE Class 6 Science Video Lecture
| 1. What is threshing and why is it used in the separation of substances? |  |
Ans. Threshing is a method of separation used to separate grains from the chaff. It is commonly used in agriculture to separate wheat, rice, and other crops from their husks or outer coverings. Threshing helps in obtaining clean and edible grains for consumption or further processing.
| 2. How is threshing done in traditional methods? | |
Ans. In traditional methods, threshing is done by beating the harvested crop against a hard surface or by stamping on it. This process helps to loosen the grains from the chaff. Afterwards, the mixture of grains and chaff is thrown into the air. Due to the difference in weight, the grains fall down and the chaff gets blown away by the wind.
| 3. Are there any modern techniques of threshing? | |
Ans. Yes, there are modern techniques of threshing that involve the use of machines. Threshing machines are commonly used in large-scale agriculture to separate grains from the chaff. These machines have rotating drums or beaters that separate the grains by agitating the crop. The separated grains are then collected while the chaff is discarded.
| 4. What are the advantages of using threshing machines over traditional methods? | |
Ans. Threshing machines offer several advantages over traditional methods of threshing. Firstly, they are more efficient and can process a larger quantity of crop in a shorter amount of time. Secondly, they provide a more uniform separation of grains from the chaff, resulting in better quality produce. Lastly, they reduce the physical effort required by farmers, making the process less labor-intensive.
| 5. Can threshing be used to separate substances other than grains? | |
Ans. Yes, threshing can be used to separate substances other than grains. The principle of threshing, which involves separating heavier particles from lighter ones, can be applied to separate other mixtures as well. For example, threshing can be used to separate seeds from fruits or vegetables, or to separate different types of nuts from their shells.
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Dec 20, 2024 Last updated |
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