Sieving is used before making wheat flour dishes to remove any impurities or larger particles, such as husk or stones, from the flour. It also helps to aerate the flour, making it finer and smoother. This ensures that the dough ...
Category: Class 6 Science
NCERT Solutions and Important Questions for class 6 Science for CBSE exams 2020-2021.
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No, saltwater cannot be filtered to obtain salt because salt is dissolved in water and cannot be separated by filtration. Instead, the process of evaporation is used. When saltwater is heated, the water evaporates, leaving the salt behind as crystals. ...
During sedimentation, heavier solid particles in a liquid settle at the bottom of the container due to gravity. This process helps separate the solid particles from the liquid. After sedimentation, decantation is used to carefully pour off the clear liquid ...
In rural areas, a piece of cloth is often used as a filter because it is easily available and cost-effective. The cloth helps to separate solid particles, like dirt or impurities, from liquids, such as water. When water is poured ...
To separate chalk powder from water, the method of filtration is used. When chalk powder is mixed with water, it forms a suspension. By using filter paper, the water passes through, while the chalk powder gets trapped in the paper. ...
We add salt to water and then evaporate it to obtain salt crystals from the solution. When the water evaporates, it turns into vapor, leaving the salt behind. This process is a simple way to separate salt from water, which ...
Winnowing is effective in separating husk from grains because the husk is lighter than the grains. In this method, the mixture of grains and husk is thrown into the air, and the wind blows away the lighter husk while the ...
To separate sand and salt, we can use dissolution and filtration. First, add water to the mixture of sand and salt. The salt will dissolve in the water, but the sand will not. Next, filter the mixture using filter paper. ...
The method used to separate oil from water is called separation using a separating funnel. Oil and water do not mix, so they form two separate layers when put together. The oil, being less dense than water, floats on top. ...
Winnowing is a method used to separate lighter particles, like husk or chaff, from heavier grains, such as rice or wheat. In this process, farmers toss the mixture into the air, allowing the wind to blow away the lighter husk ...