1.4.1 define a mixture and give examples.
Definition of mixture.
- brainstorm to bring out the meaning of a mixture.
- discuss examples of mixtures
- assemble and identify different types of mixtures.
- assemble and identify different types of mixtures.
Explain the term ‘mixture’. Mention four examples of mixtures.
1.4.2 prepare salt solution
- put salt in water
- stir for the salt to dissolve
- taste and discuss their observation
- stir for the salt to dissolve
- taste and discuss their observation
1.4.3 define solute, solvent, solution.
Types of solvents and their uses.
- list some solvents in the home and discuss their uses.
- list some common solutes and name their appropriate solvents.
- list some common solutes and name their appropriate solvents.
Explain why it is not possible to find water which is completely pure in the environment.
1.4.4 explain the importance of shaking or stirring some mixtures well before using them.
Importance of shaking or stirring mixtures before use.
- obtain some paints (e.g. lime) mix with water and stir .
- leave for some time and observe.
deduce from their observations of mixtures the need to stir or agitate paints and some liquid medicines before use.
- leave for some time and observe.
deduce from their observations of mixtures the need to stir or agitate paints and some liquid medicines before use.
Explain what will happen if a baker does not mix the dough well enough before baking.
1.4.5 demonstrate some methods of separating mixtures.
- discuss methods of separating mixtures.
- use appropriate methods to separate different types of mixtures e.g. salt from salt solution.
- use appropriate methods to separate different types of mixtures e.g. salt from salt solution.
How will you separate salt when it is mixed with sand.
1.4.6 demonstrate the difference between a mixture and a compound.
Differences between mixtures and compounds.
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