Trinity Academy
Science Mastery Curiculum
Elementary 3
the pH scale for measuring acidity/alkalinity; and indicators
defining acids and alkalis in terms of neutralisation reactions
Overview – Chemistry E3
Lesson
Objective
1. Introduction to
acids and alkalis
The names, uses and
importance of common
acids
Use litmus paper to classify
solutions as acidic, alkaline
or neutral
Classify acidic, alkaline and
neutral solutions in terms of
pH using universal indicator
Classify acidic, alkaline and
neutral solutions in terms of
pH using universal indicator
Use pH probes to classify
acidic and alkaline solutions
as strong or weak
Consolidate learning of
acids, alkalis, pH scale and
indicators
2. Litmus indicator
3. pH scale and
universal indicator
4. Hazard symbols:
corrosive and
irritant
5. Strong and weak
acids and alkalis
6. Consolidation 1
Recall examples of acids and alkalis

Use litmus paper to determine whether or
not a solution is acidic, alkaline or neutral

Use universal indicator to determine the
pH of substances and their strength

Use universal indicator to determine the
pH of substances and their strength

Use universal indicator to determine the
pH of substances and their strength


Recall examples of acids and alkalis
Use litmus paper to determine whether or
not a solution is acidic, alkaline or neutral
Use universal indicator to determine the
pH of substances and their strength


7. Consolidation 2
8. Neutralisation
Outcomes/skills

Understand the concept of
neutralisation and apply it
to real world scenarios
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9. Neutralisation
10. Neutralisation
Set up a neutralisation
experiment
Carry out a neutralisation
experiment
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11. Consolidation
Use litmus paper and
universal indicator to gather
information about solutions
and make predictions about
neutralisation

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Recall the general word equation: acid +
alkali ----> salt + water
Recall that the reaction between an acid
and an alkali is called neutralisation
Recall that water is always produced in
neutralisation reactions
Convert units for the same variable to
scale up or down
Recall the general word equation: acid +
alkali ----> salt + water
Recall that the reaction between an acid
and an alkali is called neutralisation
Recall that water is always produced in
neutralisation reactions
Recall examples of acids and alkalis
Use litmus paper to determine whether or
not a solution is acidic, alkaline or neutral
Use universal indicator to determine the
pH of substances and their strength
Recall the general word equation: acid +
alkali ----> salt + water
Recall that the reaction between an acid
and an alkali is called neutralisation
Recall that water is always produced in
neutralisation reactions