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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
1

Opening and revision of end of term exam

2 1
THE MOLE
Preparation of molar solutions.
Calculators on molar solutions.
By the end of the lesson, the learner should be able to:
Define molar solutions.
Prepare molar solutions.
Q/A: - Description of preparation of molar solutions.
Volumetric flasks, teat droppers/wash bottle.
Sodium hydrogen pellets.
Weighing balance.
student book
K.L.B. BK III
PP. 50-51

Longhorn
Book III
PP 78-81
2 2-3
THE MOLE
Dilution of solutions.
Stoichiometry of a chemical reaction.
Stoichiometric equations.
By the end of the lesson, the learner should be able to:
Calculate molarity of a solution after dilution.
To determine mole ratio of given reactions.
Group experiments.
Calculations.
Group experiments: - Determine masses, hence moles of reacting CuSO4 solution and iron metal.
student book
CuSO4 solution and iron metal.
student book
K.L.B. BK III
PP. 76-81
K.L.B. BK III
P. 56
Longhorn Book III PP 87-92
2 4
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 5
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
3 1
ORGANIC CHEMISTRY (I)
Hydrocarbons.
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.
Discuss composition of the carbon atom; hence deduce number of valence electrons.
Exposition of new terms.
student book
Chart of biomass digester.
K.L.B. BK III
P. 92
Longhorn
Book III
P 135
3 2-3
ORGANIC CHEMISTRY (I)
Naming Alkanes.
Members of Alkane series.
Isomerism in alkanes.
By the end of the lesson, the learner should be able to:
To identify various alkanes.
To define a homologous series.
To name members of alkane series and identify their characteristics.
To draw the structures of alkane series.
Discussion and exposition of new concepts.
student book
Chart- structure of alkanes.
Models.
K.L.B. BK III
PP. 94-98
Longhorn
Book III
PP 136-139

K.L.B. BK III
PP. 97-99

Longhorn Book III
PP 137-9
3 4
ORGANIC CHEMISTRY (I)
Laboratory preparation of a given alkane.
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.
K.L.B. BK III
P. 103

Longhorn
Book III
PP 146
3 5
ORGANIC CHEMISTRY (I)
Trend in physical properties of alkanes.
Chemical properties of alkanes.
By the end of the lesson, the learner should be able to:
To describe the trend in physical properties of alkanes.
Study a table of comparative properties of alkanes.
Make deductions from the table.
student book
K.L.B. BK III
P. 105

Longhorn
Book III
PP 148-9
4 1
ORGANIC CHEMISTRY (I)
Substitution reactions involving alkanes. Uses of alkanes.
By the end of the lesson, the learner should be able to:
To describe substitution reactions involving alkanes.

To list down uses of alkanes.
Discussion


Teacher elucidates uses of alkanes.
student book
K.L.B. BK III
P. 108

Longhorn
Book III
PP 149-50
4 2-3
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
4 4
ORGANIC CHEMISTRY (I)
Preparing ethene in the lab.
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

K.L.B. BK III
P 162
4 5
ORGANIC CHEMISTRY (I)
Physical properties of ethene.
Chemical properties of ethene.
By the end of the lesson, the learner should be able to:
To describe physical properties of ethene and other alkenes.
To discuss physical properties of ethene and other alkenes.

student book
charts
K.L.B. BK III
PP. 116-117
Longhorn Book III
PP 126-129
165-6
5 1
ORGANIC CHEMISTRY (I)
Alkenes and oxidizing agents.
By the end of the lesson, the learner should be able to:
To describe reactions of alkenes with oxidizing agents.
Review the double bonds in alkenes.
Review reduction process, oxidizing agent.
Discuss reactions of alkenes with conc. H2SO4, acidified potassium chromate.
Expose hydrolysis process.

charts

K.L.B. BK III
PP. 120-121


Longhorn
Book III
PP 166-8
5 2-3
ORGANIC CHEMISTRY (I)
Uses of alkenes & Topic review.
Alkynes. Nomenclature.
By the end of the lesson, the learner should be able to:
To list down uses of alkenes.
To identify various alkynes.
To name and draw structures of alkynes.
Teacher elucidates uses of alkenes.

Assignment.
Discuss a table of members of alkynes.
Review naming of alkanes and alkene and compare this with naming of alkynes.
charts
K.L.B. BK III
P. 121 Longhorn Book
PP 170-1

K.L.B. BK III
P. 122-123
Longhorn
Book III
PP 126-129 171-5
5 4
ORGANIC CHEMISTRY (I)
Isomerism in alkynes.
Physical properties of ethyne.
By the end of the lesson, the learner should be able to:
To draw structure showing positional and branching isomerism.
Discussion and drawing structures.
charts
K.L.B. BK III
PP. 124-125
Longhorn
Book III
PP 176-8
5 5
ORGANIC CHEMISTRY (I)
Chemical properties of ethyne.
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
6 1
ORGANIC CHEMISTRY (I)
Tests for alkynes. Uses of alkynes.
By the end of the lesson, the learner should be able to:
To describe tests for alkynes and state uses of alkynes.
Discussion and explanations.

Assignment.
charts
K.L.B. BK III
P.130

Longhorn Book III
PP 180-84
6 2-3
NITROGEN & ITS COMPOUNDS.
Isolation of nitrogen from air.
Industrial production of nitrogen.
Lab. preparation of nitrogen.
By the end of the lesson, the learner should be able to:



Describe isolation of nitrogen from air.
Describe lab preparation of nitrogen.



Teacher demonstration, explanations and equations.

Teacher demonstration:
Students? record observations made from tests on the gas.
Writing equations of reactions.
Aspirator, copper turnings, gas jar, combustion tube, trogh.
charts
Ammonium chloride, sodium nitrate
K.L.B. BK III
PP. 134-135

Longhorn Book
P 186

K.L.B. BK III
P. 137

Longhorn
Book III
P 190-1
6 4
NITROGEN & ITS COMPOUNDS.
Physical and chemical properties of nitrogen. Uses of nitrogen.
By the end of the lesson, the learner should be able to:
State physical and chemical properties of nitrogen.


List down uses of nitrogen.

Discussion and writing equations.
charts
K.L.B. BK III
P. 138

Longhorn
Book III
PP 191-2
6 5
NITROGEN & ITS COMPOUNDS.
Nitrogen (I) oxide. Lab preparation.
By the end of the lesson, the learner should be able to:
To describe Nitrogen (I) oxide.
Teacher demonstration: -
Carry out tests on the gas.
Students record observations in a table.
Guided discussion.
Ammonium nitrate.
K.L.B. BK III
PP. 139-141

Longhorn
Book III
PP 195-6
7 1
NITROGEN & ITS COMPOUNDS.
Properties and uses of Nitrogen (I) oxide.
Nitrogen (II) oxide. Lab preparation.
By the end of the lesson, the learner should be able to:
To list down physical properties of nitrogen (I) oxide.
To describe chemical properties of nitrogen (I) oxide.
To list down uses of nitrogen (I) oxide.
Q/A: Deductions from tests carried out.
Discussion of chemical properties and writing of equations.

Teacher elucidates uses of nitrogen (1) oxide.
charts
Dil nitric acid, copper turnings.

K.L.B. BK III
P. 141
Longhorn
Book III
PP 191-2
7 2-3
NITROGEN & ITS COMPOUNDS.
Properties of the gas.
Nitrogen (1V) oxide Lab preparation.
Properties of Nitrogen (IV) oxide.
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
To describe nitrogen (IV) oxide lab preparation.
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.

Teacher demonstration: - Preparation of the gas and corresponding equation.
Tests on the gas and make observations.
charts
Conc. nitric acid, copper turnings.
charts
K.L.B.
BK III
P. 143

Longhorn
Book III
PP 192-200

K.L.B. BK III
PP. 144-145
7 4
NITROGEN & ITS COMPOUNDS.
Ammonia. Lab preparation of ammonia.
By the end of the lesson, the learner should be able to:
To describe lab preparation of ammonia
Q/A: Structure of ammonia.
Group experiments: Preparation of ammonia.
Tests on the gas.
Ca(OH)2, NH4Cl Solutions, CaO, litmus papers..M THREE CHEMISTRY TERM TWO 20....
K.L.B. BK III
PP. 147-148
7 5
NITROGEN & ITS COMPOUNDS.
Properties of ammonia.
By the end of the lesson, the learner should be able to:
To list down physical properties of ammonia.
Deduce physical properties from the observations above.
Discuss chemical properties from the observations above.
Write down chemical equations.
charts

K.L.B. BK III
P. 150
8 1
NITROGEN & ITS COMPOUNDS.
Solubility of ammonia.
By the end of the lesson, the learner should be able to:
To describe an experiment to determine solubility of ammonia.
Teacher demonstration.

Discussion.
charts
K.L.B. BK III
P. 150
8 2-3
NITROGEN & ITS COMPOUNDS.
Reaction of ammonia with metal ions.
Ionic equations of above reactions.
Burning ammonia in the air.
By the end of the lesson, the learner should be able to:
To prepare aqueous solution of ammonia.


To carry out tests of aqueous ammonia on metal ions.
To write iIonic equations of above reactions.
Teacher demonstration: - Preparation of aqueous solution of ammonia.

Class experiments: -
Students record observations when drops of aqueous ammonia are added, then in excess.
Discuss precipitation of metal hydroxides by aqueous ammonia.
Confirmatory tests for various concentrations.
2 cm Solutions containing various metal ions.
charts
Conc. Ammonium solution
Hot platinum rod
Oxygen.

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

K.L.B. BK III
P.154

Longhorn BK III
P 223
8 4
NITROGEN & ITS COMPOUNDS.
Reaction of ammonia with copper (II) Oxide.
By the end of the lesson, the learner should be able to:
To name products formed when ammonia reacts with hot CuCl2 solid.
To explain reducing properties of ammonia.
Teacher demonstration and discussion.
Write down equations for the reactions.
Granular CuCl2
Combustion tube,
Dry ammonia
U-tube
Gas jar.

K.L.B.
BK III
P. 158
8 5
NITROGEN & ITS COMPOUNDS.
Haber process.
Uses of ammonia.
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.
charts

K.L.B. BK III
PP. 159-160
225-226
9

Mid-term exam and mid-term break

10 1
NITROGEN & ITS COMPOUNDS.
Nitric acid. Lab preparation.
By the end of the lesson, the learner should be able to:
To describe lab preparation of nitric acid.
Teacher demonstration.
Write equations of reaction.
Discussion.
Retort stand
Conc. H2SO4
KNO3
K.L.B. BK III
P. 163
10 2-3
NITROGEN & ITS COMPOUNDS.
Nitric acid Industrial manufacture.
Reaction of dilute Nitric acid with metals.
By the end of the lesson, the learner should be able to:
To describe industrial manufacture of nitric acid.
To describe reaction of dilute nitric acid with metals.
To write equations of reactions of dilute nitric acid with metals.
Discussion and writing equations.
Class experiment:- making observations and recording them in a table.
Discuss the observations.
Write down equations for the reactions.
Chart
Schematic diagram.
Magnesium
Zinc
Copper
K.L.B. BK III
P. 164

K.L.B. BK III
PP. 165-166

Longhorn
Book III
PP 166-8
10 4
NITROGEN & ITS COMPOUNDS.
Nitric acid and carbonates.
By the end of the lesson, the learner should be able to:
To describe action of nitric acid on carbonates and hydrogen carbonates.
Group experiments: - Action of Nitric acid on hydrogen carbonates.
Solutions of
Na2CO3
NaHCO3
ZnCO3
CuCO3
K.L.B. BK III
P. 167

Longhorn
Book III
229-30
10 5
NITROGEN & ITS COMPOUNDS.
Reaction of dil. nitric acid with hydrogen carbonates.
Dilute nitric acid and metal hydroxides and oxides.
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.
Metal hydroxides.
K.L.B. BK III
P. 167
11 1
NITROGEN & ITS COMPOUNDS.
Reaction of nitric acid as an oxidizing agent.
By the end of the lesson, the learner should be able to:
Describe reactions of nitric acid as an oxidizing agent.
Class experiments: -
Explain observations made.
Nitric acid acidified iron sulphate, sulphur, and copper metal.
K.L.B. BK III
PP. 169-170

Longhorn Book III
PP 239 -240
11 2-3
NITROGEN & ITS COMPOUNDS.
Uses of nitric acid & nitrates.
Action of heat on nitrates.
By the end of the lesson, the learner should be able to:
To state uses of nitrates.
To describe preparation of nitrates.
To write equations of decomposition of nitrates on heating.
Discussion
Equations for the reactions for preparation of nitrates.
Discuss above observations.
Write relevant equations.
charts
K.L.B. BK III
P. 171

Longhorn Book III
PP 240
K.L.B. BK III
P 172
11 4
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
11 5
NITROGEN & ITS COMPOUNDS.
Nitrogen compounds and the environment.
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
K.L.B.BK III
PP. 173-174

Longhorn
Book III
PP 244-6
12 1
SULPHUR AND ITS COMPOUNDS
Extraction of sulphur.
By the end of the lesson, the learner should be able to:

To describe extraction of sulphur by Frasch process.

Illustrate and discuss extraction of sulphur.
Chart-the Frasch process.
K.L.B. BK III
PP.180-181
Longhorn
Book III
PP 126-129
12 2-3
SULPHUR AND ITS COMPOUNDS
Allotropes of sulphur.
Physical properties of sulphur. Heating of sulphur.
Chemical properties 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.
To investigate and describe chemical properties of sulphur.
Discussion and exposition of new concepts.
Group experiments.
Discuss observations.
Write corresponding equations.
video
charts
K.L.B. BK III
PP. 182-183
Longhorn Book
PP 126-129

K.L.B.BK III
PP.188-190
Longhorn
Book III
PP 256-8
12 4
SULPHUR AND ITS COMPOUNDS
Uses of sulphur. Sulphur dioxide.
By the end of the lesson, the learner should be able to:
State uses of sulphur.
Describe lab. preparation of sulphur dioxide.
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 191- 192
Longhorn Book
P 258
12 5
SULPHUR AND ITS COMPOUNDS
Physical properties of sulphur dioxide.
By the end of the lesson, the learner should be able to:
To list down physical properties of sulphur dioxide.
Discuss the above tests.
text book
K.L.B.BK III
PP 193
Longhorn
Book III
PP 262-3
13-14

End of term examination and closing of school


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