Are you studying “Separation of Substances” from Class 6 Science? We’ve created a super easy mind map to help you understand this chapter quickly and easily.
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What Is in the Chapter “Separation of Substances?”
Here are the key things you will learn in this chapter:
- Need for Separation:
- We need to separate substances for various reasons like removing unwanted particles or mixing ingredients. For example, we separate husk from grains or sand from water.
- Methods of Separation:
- Handpicking: Picking out unwanted substances by hand (like picking stones from grains).
- Sieving: Using a sieve to separate larger particles from smaller ones (like separating flour from bran).
- Filtration: Using a filter to separate solids from liquids (like filtering tea leaves from tea).
- Evaporation: Heating a liquid to remove the liquid part and leave the solid behind (like salt from seawater).
- Decantation: Pouring out liquid from a solid that has settled down (like separating water from sand).
- Solubility:
- Some substances dissolve in water (like sugar), while others don’t (like sand). This property is important when separating substances.
- Types of Mixtures:
- Heterogeneous Mixture: A mixture in which you can see the different substances (like sand and salt).
- Homogeneous Mixture: A mixture where the substances are evenly mixed (like salt dissolved in water).
- Winnowing:
- A method of separating lighter particles from heavier ones, often used to separate grain from chaff.
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