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PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoSeparation of solids:
This process involves,
- Handpicking
- Sieving
- Winnowing
- Threshing
- Magnetic separation
Handpicking:
If the impurities are visible, they are able to pick and separate by hand. This process is called handpicking.
Example: Separating stones from rice
![Manju Mandavya Shutterstock.jpg](https://resources.cdn.yaclass.in/116bd68e-c4df-4495-89d0-93d9d36d846e/ManjuMandavyaShutterstockw300.jpg)
Sieving:
Sieving is the process of separating different sizes of solid particles.
Example: Separating sand from gravel
![Capture4.JPG](https://resources.cdn.yaclass.in/cb6965fb-9032-4abf-b7c5-4c902308abcc/Capture4w554.jpg)
Winnowing:
The process of separation of lighter and heavier components of a mixture by air is called winnowing.
Example: Removing of husk from rice and wheat
![Arthur Teng Shutterstock.jpg](https://resources.cdn.yaclass.in/42ea0fd1-6430-4291-8059-8e9e88300607/ArthurTengShutterstockw300.jpg)
Threshing:
The separation of grains from their stalks by beating them very hard is called threshing.
![shutterstock_1317943556.jpg](https://resources.cdn.yaclass.in/1bfaef25-f15d-4501-8117-40a84b955cfc/shutterstock1317943556w300.jpg)
Magnetic separation:
A magnetic separator is a device, which uses the magnet to separate the substances with magnetic properties from non-magnetic substances. The substance that is attracted to the magnet is called magnetic. This process is called magnetic separation.
Examples of magnetic substances are iron, gold and aluminium.
![Capture5.JPG](https://resources.cdn.yaclass.in/2c3d2ab6-e8fb-4771-bf67-c25382a58142/Capture5w500.jpg)
Sometimes combination methods are required to complete separation. For example, the separation of a mixture of sand and salt in the water that involves several steps are listed below:
- Sedimentation
- Decantation
- Filtration
- Evaporation
- Condensation
Evaporation: The process of converting liquid into vapour.
![shutterstock_1750680020.jpg](https://resources.cdn.yaclass.in/3d8c227f-c2ea-4e9a-aa1a-5fcf95495745/shutterstock1750680020w300.jpg)
Condensation: This is the reverse process of vaporization, i.e., vapour into liquid.
![shutterstock_1009798339.jpg](https://resources.cdn.yaclass.in/1030060e-06f7-4e28-8068-e86c2e141112/shutterstock1009798339w300.jpg)