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Chemistry
Form 3 2025
TERM II
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WK LSN TOPIC SUB-TOPIC OBJECTIVES T/L ACTIVITIES T/L AIDS REFERENCE REMARKS
2 1
THE MOLE
Stoichiometry of a chemical reaction.
Stoichiometric equations.
By the end of the lesson, the learner should be able to:
To determine mole ratio of given reactions.
Group experiments: - Determine masses, hence moles of reacting CuSO4 solution and iron metal.
CuSO4 solution and iron metal.
student book
K.L.B. BK III
P. 56
Longhorn Book III PP 87-92
2 2
THE MOLE
Stoichiometric equations of various reactions.
By the end of the lesson, the learner should be able to:
To investigate and determine Stoichiometric equations of various reactions.
Class experiments.

Problem solving.
student book
K.L.B. BK III
P. 62
2 3
Volumetric Analysis.
Apparatus used in titration experiments.
Titration process.
By the end of the lesson, the learner should be able to:
To use and read a pipette and a burette.
Discussion and practical use of the apparatus.
Emphasis is laid on need to sterilize the apparatus after use.
Pipettes
Burettes.
Indicators
Suitable acid and base.
K.L.B. BK III
PP. 63-64
Longhorn
Book III
PP 104-8
2 4
Volumetric Analysis.
Titration experiment (Neutralization reaction)
By the end of the lesson, the learner should be able to:
To carry out a titration experiment and obtain accurate results.
Class experiments: - To neutralize HCl with NaOH solution.
Fill in a table of results.
Find the average base used.
student book
K.L.B. BK III
P. 66

Longhorn Book III PP 108-114
2 4-5
Volumetric Analysis.
Titration experiment (Neutralization reaction)
Titration experiment (Neutralization reaction)
By the end of the lesson, the learner should be able to:
To carry out a titration experiment and obtain accurate results.
To carry out calculations from experimental results.
Class experiments: - To neutralize HCl with NaOH solution.
Fill in a table of results.
Find the average base used.

Step-by-step calculations.
student book
Calculators.
K.L.B. BK III
P. 66

Longhorn Book III PP 108-114

K.L.B. BK III
P 66
Longhorn Book III PP 108-114
3 1
Volumetric Analysis.
Basicity of an acid.
Standardization of HCl.
By the end of the lesson, the learner should be able to:
To define basicity of an acid.
Complete a table of number of replaceable hydrogen ions of an acid; hence define basicity of an acid.
Write corresponding ionic equations.
student book
Dilute HCl, Na2CO3 solutions.
K.L.B. BK III
P. 73
3 2
Volumetric Analysis.
Concentration of HCl.
By the end of the lesson, the learner should be able to:
To calculate concentration of HCl from experimental results.
Calculations & supervised practice.
K.L.B. BK III
PP. 74-75
3 3
Volumetric Analysis.
Redox Titration Reactions.
By the end of the lesson, the learner should be able to:
To standardize a solution with an iron (II) salt.
Experiment and calculations.
Potassium Magnate
(VII)
K.L.B. BK III
PP. 74-75

Longhorn
Book III
PP 114-115
3 4-5
Volumetric Analysis.
Water of crystallization.
Formula mass of ammonium iron (II) sulphate.
Formula mass of a given salt.
Atomicity of gases.
By the end of the lesson, the learner should be able to:
To determine amount of water of crystallization in ammonium iron sulphate crystals.
To solve numerical problems involving water of crystallization.
Teacher exposes the formula of water of crystallization.
Class experiment.
Filling in a table of results.
Problem solving from sample results.
Ammonium
Iron (II)
Sulphate crystals.
Dilute sulphuric (VI) acid.
student book
K.L.B. BK III
P. 76
K.L.B. BK III
P.77
4 1
Volumetric Analysis.
Mass and volume of gases.
Molar gas volume.
By the end of the lesson, the learner should be able to:
To determine mass and volume of gases.
Teacher demonstration: - Determining mass of known volumes of oxygen / CO2.
Lubricated syringes
Oxygen/
CO2.
student book
K.L.B. BK III
P. 81
Longhorn BK III
PP 126-127
4 2
Volumetric Analysis.
Combining volumes of gases.
By the end of the lesson, the learner should be able to:
To compare combining volumes of two reacting gases.
Teacher demonstration: - Determining volumes of reacting gases; hence deduce volume rations.
student book
K.L.B BK III
P. 82
4 3
Volumetric Analysis.
Gay Lussac?s Law.
By the end of the lesson, the learner should be able to:
To state Gay Lussac?s Law.
To compare Gay Lussac?s Law with Avogadro?s Law.
To solve numericals using Gay Lussac?s Law.
Teacher exposes the law; and compares it with Gay Lussac?s Law.
Worked examples.
Supervised practice.
student book
K.L.B. BK III
P. 85

Longhorn
Book III
PP 129-131
4 4-5
ORGANIC CHEMISTRY (I)
Hydrocarbons.
Alkanes.
Naming Alkanes.
By the end of the lesson, the learner should be able to:
To define organic Chemistry.
To define a hydrocarbon.
To identify groups of hydrocarbons.
To describe the carbon atom.
To identify various alkanes.
To define a homologous series.
Discuss composition of the carbon atom; hence deduce number of valence electrons.
Exposition of new terms.
Discussion and exposition of new concepts.
student book
Chart of biomass digester.
K.L.B. BK III
P. 92
Longhorn
Book III
P 135

K.L.B. BK III
PP. 94-98
Longhorn
Book III
PP 136-139
5 1
ORGANIC CHEMISTRY (I)
Members of Alkane series.
Isomerism in alkanes.
By the end of the lesson, the learner should be able to:
To name members of alkane series and identify their characteristics.
To draw the structures of alkane series.
Discussion and exposition of new concepts.
Chart- structure of alkanes.
Models.
K.L.B. BK III
PP. 97-99

Longhorn Book III
PP 137-9
5 2
ORGANIC CHEMISTRY (I)
Laboratory preparation of a given alkane.
Trend in physical properties of alkanes.
By the end of the lesson, the learner should be able to:
To describe laboratory preparation of a given alkane.
To state physical properties of the gases prepared.
Teacher demonstration.
Discussion.
Sodium ethanoate, sodalime,
Pestle and mortar.
student book
K.L.B. BK III
P. 103

Longhorn
Book III
PP 146
5 3
ORGANIC CHEMISTRY (I)
Chemical properties of alkanes.
Substitution reactions involving alkanes. Uses of alkanes.
By the end of the lesson, the learner should be able to:
Describe chemical properties of alkanes.
Discussion
Examples of balanced equations.
student book
K.L.B. BK III
P. 107
Longhorn
Book III
PP 148-9
5 4-5
ORGANIC CHEMISTRY (I)
Alkenes. Molecular formulae of alkenes.
Naming alkenes.
Alkene isomerism.
By the end of the lesson, the learner should be able to:
To write molecular formulae of alkenes.
To name various alkenes.
Examine table of members of alkenes.
To identify members of alkene series.
Q/Q: Nomenclature in alkenes.
Compare alkenes; hence deduce names of various alkenes.
student book
K.L.B. BK III
PP 153-4
K.L.B. BK III
PP. 110-113
Longhorn
Book III
PP 154-6
6 1
ORGANIC CHEMISTRY (I)
Preparing ethene in the lab.
Physical properties of ethene.
By the end of the lesson, the learner should be able to:
To describe lab preparation of ethene.
Teacher demonstration: - Carry out tests on ethene as students note down the observations in a table.
chart
student book

K.L.B. BK III
P 162
6 2
ORGANIC CHEMISTRY (I)
Chemical properties of ethene.
Alkenes and oxidizing agents.
By the end of the lesson, the learner should be able to:
To explain halogenation and hydrogenation reactions.
Discussion and drawing structures.
charts

KLB BK III
PP. 118-119
Longhorn
Book III
PP 166-8
6 3
ORGANIC CHEMISTRY (I)
Uses of alkenes & Topic review.
By the end of the lesson, the learner should be able to:
To list down uses of alkenes.
Teacher elucidates uses of alkenes.

Assignment.
charts
K.L.B. BK III
P. 121 Longhorn Book
PP 170-1
6 4-5
ORGANIC CHEMISTRY (I)
Alkynes. Nomenclature.
Isomerism in alkynes.
Physical properties of ethyne.
By the end of the lesson, the learner should be able to:
To identify various alkynes.
To name and draw structures of alkynes.
To draw structure showing positional and branching isomerism.
Discuss a table of members of alkynes.
Review naming of alkanes and alkene and compare this with naming of alkynes.

Discussion and drawing structures.
charts
K.L.B. BK III
P. 122-123
Longhorn
Book III
PP 126-129 171-5

K.L.B. BK III
PP. 124-125
Longhorn
Book III
PP 176-8
7 1
ORGANIC CHEMISTRY (I)
Chemical properties of ethyne.
Tests for alkynes. Uses of alkynes.
By the end of the lesson, the learner should be able to:
To describe combustion, halogenation and hydrogenation processes.
Discussion and writing of equations.
charts
K.L.B. BK III
PP. 127-129
Longhorn Book III
PP 180-184
7 2
NITROGEN & ITS COMPOUNDS.
Isolation of nitrogen from air.
By the end of the lesson, the learner should be able to:



Describe isolation of nitrogen from air.



Teacher demonstration, explanations and equations.
Aspirator, copper turnings, gas jar, combustion tube, trogh.
K.L.B. BK III
PP. 134-135

Longhorn Book
P 186
7 3
NITROGEN & ITS COMPOUNDS.
Industrial production of nitrogen.
Lab. preparation of nitrogen.
By the end of the lesson, the learner should be able to:
Describe industrial production of nitrogen.
Discussion and description.
Drawing schematic diagram for the process.
charts
Ammonium chloride, sodium nitrate
K.L.B. BK III
PP.135-136

Longhorn Book
PP 188-9
7 4-5
NITROGEN & ITS COMPOUNDS.
Physical and chemical properties of nitrogen. Uses of nitrogen.
Nitrogen (I) oxide. Lab preparation.
Properties and uses of Nitrogen (I) oxide.
By the end of the lesson, the learner should be able to:
State physical and chemical properties of nitrogen.


List down uses of nitrogen.


To describe Nitrogen (I) oxide.
Discussion and writing equations.
Teacher demonstration: -
Carry out tests on the gas.
Students record observations in a table.
Guided discussion.
charts
Ammonium nitrate.
charts
K.L.B. BK III
P. 138

Longhorn
Book III
PP 191-2

K.L.B. BK III
PP. 139-141

Longhorn
Book III
PP 195-6
8 1
NITROGEN & ITS COMPOUNDS.
Nitrogen (II) oxide. Lab preparation.
By the end of the lesson, the learner should be able to:
To describe lab preparation of nitrogen (II) oxide.
Class experiment: Preparation and carrying out tests on the gas.
Observations recorded in a table.
Dil nitric acid, copper turnings.
K.L.B. BK III
P. 142
Longhorn
Book III
PP 200-1
8 2
NITROGEN & ITS COMPOUNDS.
Properties of the gas.
Nitrogen (1V) oxide Lab preparation.
By the end of the lesson, the learner should be able to:
To list down physical properties of nitrogen (II) oxide
To describe chemical properties of nitrogen (11) oxide
Q/A: Deductions from tests carried out.
Discussion of chemical properties and writing of equations.
Carry out a confirmatory test for the presence of the gas.
charts
Conc. nitric acid, copper turnings.
K.L.B.
BK III
P. 143

Longhorn
Book III
PP 192-200
8 3
NITROGEN & ITS COMPOUNDS.
Properties of Nitrogen (IV) oxide.
Ammonia. Lab preparation of ammonia.
By the end of the lesson, the learner should be able to:
To list down physical properties of nitrogen (IV) oxide
To describe chemical properties of nitrogen (IV) oxide
To state uses of nitrogen (1V) oxide.
Deduce physical properties from the table of observations.
To describe chemical properties from the table of observations.
Discuss uses of nitrogen (1V) oxide.




charts
Ca(OH)2, NH4Cl Solutions, CaO, litmus papers..M THREE CHEMISTRY TERM TWO 20....

K.L.B. BK III
PP. 144-147

Longhorn
Book III
P 204








8 4-5
NITROGEN & ITS COMPOUNDS.
Properties of ammonia.
Solubility of ammonia.
Reaction of ammonia with metal ions.
By the end of the lesson, the learner should be able to:
To list down physical properties of ammonia.
To prepare aqueous solution of ammonia.


To carry out tests of aqueous ammonia on metal ions.
Deduce physical properties from the observations above.
Discuss chemical properties from the observations above.
Write down chemical equations.

Teacher demonstration: - Preparation of aqueous solution of ammonia.

Class experiments: -
Students record observations when drops of aqueous ammonia are added, then in excess.
charts
2 cm Solutions containing various metal ions.

K.L.B. BK III
P. 150

K.L.B.
BK III
PP. 152-153
9

Midterm and half-term

10 1
NITROGEN & ITS COMPOUNDS.
Ionic equations of above reactions.
By the end of the lesson, the learner should be able to:
To write iIonic equations of above reactions.
Discuss precipitation of metal hydroxides by aqueous ammonia.
Confirmatory tests for various concentrations.
charts
K.L.B. BK III
P.154

Longhorn BK III
P 223
10 2
NITROGEN & ITS COMPOUNDS.
Burning ammonia in the air.
Reaction of ammonia with copper (II) Oxide.
By the end of the lesson, the learner should be able to:
To describe burning ammonia in the air.
Teacher demonstration
Discussion
Chemical equations of reactions.
Conc. Ammonium solution
Hot platinum rod
Oxygen.
Granular CuCl2
Combustion tube,
Dry ammonia
U-tube
Gas jar.
K.L.B.
BK III
P. 158
Longhorn
Book III
PP 219
10 3
NITROGEN & ITS COMPOUNDS.
Haber process.
By the end of the lesson, the learner should be able to:
Identify raw materials for Haber process and how they are obtained in large scale.
Discuss the Haber process.
Represent Haber process in a schematic diagram.
Discussion and explanations.
Chart- schematic diagram.

K.L.B. BK III
PP. 159-160
225-226
10 4-5
NITROGEN & ITS COMPOUNDS.
Uses of ammonia.
Nitric acid. Lab preparation.
Nitric acid Industrial manufacture.
By the end of the lesson, the learner should be able to:
To list down uses of ammonia.
To list down nitrogenous fertilizers.
To describe industrial manufacture of nitric acid.
Teacher elucidates uses of ammonia and nitrogenous fertilizers.
Discussion and writing equations.
charts
Retort stand
Conc. H2SO4
KNO3
Chart
Schematic diagram.
K.L.B. BK III
P. 161

Longhorn
Book III
PP 126 -226

K.L.B. BK III
P. 164
11 1
NITROGEN & ITS COMPOUNDS.
Reaction of dilute Nitric acid with metals.
Nitric acid and carbonates.
By the end of the lesson, the learner should be able to:
To describe reaction of dilute nitric acid with metals.
To write equations of reactions of dilute nitric acid with metals.
Class experiment:- making observations and recording them in a table.
Discuss the observations.
Write down equations for the reactions.
Magnesium
Zinc
Copper
Solutions of
Na2CO3
NaHCO3
ZnCO3
CuCO3
K.L.B. BK III
PP. 165-166

Longhorn
Book III
PP 166-8
11 2
NITROGEN & ITS COMPOUNDS.
Reaction of dil. nitric acid with hydrogen carbonates.
By the end of the lesson, the learner should be able to:
Write equations for reaction of dil. nitric acid with hydrogen carbonates.
Discussion and corresponding equations.
K.L.B. BK III
P. 167
11 3
NITROGEN & ITS COMPOUNDS.
Dilute nitric acid and metal hydroxides and oxides.
By the end of the lesson, the learner should be able to:
Predict results of reacting dilute nitric acid with metal hydroxides and oxides.
Group experiments & writing equations for the reactions.
Metal hydroxides.
K.L.B. BK III
P. 168

Longhorn
Book III
PP 238-240
11 4-5
NITROGEN & ITS COMPOUNDS.
Reaction of nitric acid as an oxidizing agent.
Uses of nitric acid & nitrates.
Action of heat on nitrates.
By the end of the lesson, the learner should be able to:
Describe reactions of nitric acid as an oxidizing agent.
To write equations of decomposition of nitrates on heating.
Class experiments: -
Explain observations made.
Discuss above observations.
Write relevant equations.
Nitric acid acidified iron sulphate, sulphur, and copper metal.
charts
K.L.B. BK III
PP. 169-170

Longhorn Book III
PP 239 -240

K.L.B. BK III
P 172
12 1
NITROGEN & ITS COMPOUNDS.
Test for nitrates.
By the end of the lesson, the learner should be able to:
To carry out tests on nitrates.
Class experiments.
Make observations and deductions.
Discuss the brown ring test for nitrates.
charts
K.L.B. BK III
PP 173-174

Longhorn
Book III
PP 243
12 2
NITROGEN & ITS COMPOUNDS.
SULPHUR AND ITS COMPOUNDS
Nitrogen compounds and the environment.
Extraction of sulphur.
By the end of the lesson, the learner should be able to:
To explain the pollution of nitrogen compounds in the environment.
To state ways of reducing environmental pollution by nitrogen compounds.
Brief guided discussion.
charts
Chart-the Frasch process.
K.L.B.BK III
PP. 173-174

Longhorn
Book III
PP 244-6
12 3
SULPHUR AND ITS COMPOUNDS
Allotropes of sulphur.
Physical properties of sulphur. Heating of sulphur.
By the end of the lesson, the learner should be able to:
To identify allotropes of sulphur.
To describe preparation of allotropes of sulphur.
Discussion and exposition of new concepts.
video
charts
K.L.B. BK III
PP. 182-183
Longhorn Book
PP 126-129
12 4-5
SULPHUR AND ITS COMPOUNDS
Chemical properties of sulphur.
Uses of sulphur. Sulphur dioxide.
By the end of the lesson, the learner should be able to:
To investigate and describe chemical properties of sulphur.
State uses of sulphur.
Describe lab. preparation of sulphur dioxide.
Group experiments.
Discuss observations.
Write corresponding equations.
Teacher elucidates uses of sulphur.
Teacher demonstration:-
Preparation of sulphur dioxide in a fume chamber/in the open.
Carrying out tests on the gas.
charts
K.L.B.BK III
PP.188-190
Longhorn
Book III
PP 256-8

K.L.B.BK III
PP 191- 192
Longhorn Book
P 258

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