Page 213 - Primary Five Science

Solutes, solvents and solutions

A solute:

It’s a substance that can easily dissolve in another substance

(liquid)

Examples of solutes include, salt, sugar, glucose which dissolve

in water

A solvent

It’s a substance (liquid) that dissolves a solute.

Examples of a solvent is water. Water is called a universal sol-

vent because it dissolves most solves.
Substances which do not dissolve in a solvent such as water, is

said to insoluble

Insoluble substances includes stones, ash and sand.

Solution

It is a substance formed after a solute has completely dis-

solved in a solvent.

Separating mixtures

When separating mixtures of solids and liquids we use the fol-
lowing methods

1. Filtration

2. Evaporation to dryness

3. Decantation

4. Distillation