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D issolving Solids in Water

Activity 13.3

Aim : To find out how solids dissolve in liquids.

Materials Required : A glass of water, a spoonful of sugar

Procedure : 1. Take a glass of water.

2. Mix a spoonful of sugar and stir it.

3. When you stir for some time, what
will you see?

Observation : We will observe that sugar has started

disappearing.

Conclusion : It happened because sugar has dissolved in the water.

The solid that dissolve in a liquid is called solute. Water is called a universal solvent

as everything dissolves in it. There are some solids that dissolve in liquids. The liquid
in which a solid dissolves is called solvent. After dissolving the solute in the solvent, a
liquid is obtained. This liquid is called a solution.

+ =

Solute Solvent Solution

Factual Study

Liquids like water, oil, soda fit inside the container they kept in. If you look at them
under a microscope, you’ll see that they have particles stick close together.

Let’s Pronounce Together

solids liquids gases solvent solute

solution freezing evaporation condensation

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