Solutions and filtering · विलयन और छानना
A free Chemistry lesson for Class 4 children.
Stir sugar into water. The sugar seems to vanish. It has dissolved.
Sugar and water together make a solution.
The thing that dissolves is the solute. The liquid it dissolves in is the solvent.
In a sugar solution, sugar is the solute and water is the solvent.
Things that dissolve in water are soluble. Salt and sugar are soluble.
Things that do not dissolve are insoluble. Sand and chalk powder are insoluble.
We can remove sand from water by pouring it through filter paper.
The sand left on the paper is the residue. The clear water that passes is the filtrate.