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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
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
2 2-3
ORGANIC CHEMISTRY (I)
Naming Alkanes.
Members of Alkane series.
Isomerism in alkanes.
Laboratory preparation of a given alkane.
By the end of the lesson, the learner should be able to:
To identify various alkanes.
To define a homologous series.
To draw and name isomers of simple hydrocarbons.
Discussion and exposition of new concepts.
student book
Chart- structure of alkanes.
Models.
Sodium ethanoate, sodalime,
Pestle and mortar.
K.L.B. BK III
PP. 94-98
Longhorn
Book III
PP 136-139

K.L.B. BK III
PP. 101-102 Longhorn Book III
PP 141-2
2 4
ORGANIC CHEMISTRY (I)
Trend in physical 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
2 5
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
3 1
ORGANIC CHEMISTRY (I)
Alkenes. Molecular formulae of alkenes.
Naming alkenes.
By the end of the lesson, the learner should be able to:
To write molecular formulae of alkenes.
Examine table of members of alkenes.
To identify members of alkene series.
student book
K.L.B. BK III
PP 153-4
3 2-3
ORGANIC CHEMISTRY (I)
Alkene isomerism.
Preparing ethene in the lab.
Physical properties of ethene.
By the end of the lesson, the learner should be able to:
Differentiate between branching and positional isomerism.
To describe lab preparation of ethene.
Discussion and drawing of molecular structures.
Teacher demonstration: - Carry out tests on ethene as students note down the observations in a table.
student book
chart
student book
K.L.B. BK III
P. 113
Longhorn
Book III
PP 158-60

K.L.B. BK III
P 162
3 4
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
3 5
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
4 1
ORGANIC CHEMISTRY (I)
Alkynes. Nomenclature.
By the end of the lesson, the learner should be able to:
To identify various alkynes.
To name and draw structures of alkynes.
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. 122-123
Longhorn
Book III
PP 126-129 171-5
4 2-3
ORGANIC CHEMISTRY (I)
Isomerism in alkynes.
Physical properties of ethyne.
Chemical properties of ethyne.
Tests for alkynes. Uses of alkynes.
By the end of the lesson, the learner should be able to:
To draw structure showing positional and branching isomerism.
To describe combustion, halogenation and hydrogenation processes.
Discussion and drawing structures.
Discussion and writing of equations.
charts
K.L.B. BK III
PP. 124-125
Longhorn
Book III
PP 176-8

K.L.B. BK III
PP. 127-129
Longhorn Book III
PP 180-184
4 4
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
4 5
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
5 1
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
5 2-3
NITROGEN & ITS COMPOUNDS.
Nitrogen (I) oxide. Lab preparation.
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 describe Nitrogen (I) oxide.

To describe lab preparation of nitrogen (II) oxide.
Teacher demonstration: -
Carry out tests on the gas.
Students record observations in a table.
Guided discussion.

Class experiment: Preparation and carrying out tests on the gas.
Observations recorded in a table.
Ammonium nitrate.
charts
Dil nitric acid, copper turnings.
K.L.B. BK III
PP. 139-141

Longhorn
Book III
PP 195-6

K.L.B. BK III
P. 142
Longhorn
Book III
PP 200-1
5 4
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
5 5
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








6 1
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
6 2-3
NITROGEN & ITS COMPOUNDS.
Solubility of ammonia.
Reaction of ammonia with metal ions.
Ionic equations of above reactions.
By the end of the lesson, the learner should be able to:
To describe an experiment to determine solubility of ammonia.
To prepare aqueous solution of ammonia.


To carry out tests of aqueous ammonia on metal ions.
Teacher demonstration.

Discussion.
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.
charts
K.L.B. BK III
P. 150

K.L.B.
BK III
PP. 152-153
6 4
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
6 5
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
7 1
NITROGEN & ITS COMPOUNDS.
Uses of ammonia.
Nitric acid. Lab preparation.
By the end of the lesson, the learner should be able to:
To list down uses of ammonia.
To list down nitrogenous fertilizers.
Teacher elucidates uses of ammonia and nitrogenous fertilizers.
charts
Retort stand
Conc. H2SO4
KNO3
K.L.B. BK III
P. 161

Longhorn
Book III
PP 126 -226
7 2-3
NITROGEN & ITS COMPOUNDS.
Nitric acid Industrial manufacture.
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 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
Solutions of
Na2CO3
NaHCO3
ZnCO3
CuCO3
K.L.B. BK III
P. 164

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

Longhorn
Book III
PP 166-8
7 4
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
7 5
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
8 1
NITROGEN & ITS COMPOUNDS.
Reaction of nitric acid as an oxidizing agent.
Uses of nitric acid & nitrates.
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.
charts
K.L.B. BK III
PP. 169-170

Longhorn Book III
PP 239 -240
8 2-3
NITROGEN & ITS COMPOUNDS.
Action of heat on nitrates.
Test for nitrates.
By the end of the lesson, the learner should be able to:
To write equations of decomposition of nitrates on heating.
To carry out tests on nitrates.
Discuss above observations.
Write relevant equations.

Class experiments.
Make observations and deductions.
Discuss the brown ring test for nitrates.
charts
K.L.B. BK III
P 172
K.L.B. BK III
PP 173-174

Longhorn
Book III
PP 243
8 4
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
8 5
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
9

Mid. Term

10 1
SULPHUR AND ITS COMPOUNDS
Chemical properties of sulphur.
By the end of the lesson, the learner should be able to:
To investigate and describe chemical properties of sulphur.
Group experiments.
Discuss observations.
Write corresponding equations.
charts
K.L.B.BK III
PP.188-190
Longhorn
Book III
PP 256-8
10 2-3
SULPHUR AND ITS COMPOUNDS
Uses of sulphur. Sulphur dioxide.
Physical properties of sulphur dioxide.
Acidic properties of SO2.
By the end of the lesson, the learner should be able to:
State uses of sulphur.
Describe lab. preparation of sulphur dioxide.
To list down physical properties 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.
Discuss the above tests.
charts
text book
textbook
K.L.B.BK III
PP 191- 192
Longhorn Book
P 258

K.L.B.BK III
PP 193
Longhorn
Book III
PP 262-3
10 4
SULPHUR AND ITS COMPOUNDS
Reducing action of SO2.
By the end of the lesson, the learner should be able to:
To verify reducing action of SO2.
Class experiments: make observations and draw conclusions.
Write balanced corresponding equations.
Experimental worksheets.
K.L.B.BK III
P. 195
10 5
SULPHUR AND ITS COMPOUNDS
Bleaching properties of SO2.
By the end of the lesson, the learner should be able to:
To carry out experiments to determine bleaching properties of SO2.
Discuss the observations made above.
Write corresponding equations.
K.L.B .BK III
P. 194
Longhorn
Book III
PP 263-4
11 1
SULPHUR AND ITS COMPOUNDS
Oxidizing action of SO2.
Sulphate and sulphite ions. Uses of SO2.
By the end of the lesson, the learner should be able to:
To explain Oxidizing action of SO2.
Q/A: review redox reactions.
Teacher demonstration: - Lowering magnesium into a jar of SO2; effect of SO2 on hydrogen sulphide.
Discuss observations.
Write equations for the reactions.
Burning magnesium.
Hydrogen sulphide.
Sodium sulphate
Barium chloride
Barium nitrate.
K.L.B.
BK III
PP. 198-199
Longhorn
Book III
PP 266-7
11 2-3
SULPHUR AND ITS COMPOUNDS
Sulphuric acid. Contact process of manufacture.
Properties of conc. H2SO4.
By the end of the lesson, the learner should be able to:
To identify raw materials for manufacture of sulphuric acid.
To describe the contact process.

Describe properties of conc. H2SO4.
Discussion using schematic
flow charts.
Writing equations.
Discuss above observations.
Write relevant equations.
Chart-schematic
Flow charts.

K.L.B. BK III
PP.201-203
Longhorn
Book III
PP 275-6

K.L.B.
BK III
P. 204
11 4
SULPHUR AND ITS COMPOUNDS
Physical properties of sulphuric acid.
By the end of the lesson, the learner should be able to:
To dilute conc. sulphuric acid.
State physical properties of sulphuric acid.
Teacher demonstration ? diluting conc. sulphuric acid.
Discuss use of conc. sulphuric acid as a drying and dehydrating agent.
Conc. sulphuric acid.
K.L.B.
BK III P. 205
Longhorn
Book III
PP 274-5
11 5
SULPHUR AND ITS COMPOUNDS
Chemical properties of Sulphuric acid.
Dilute H2SO4, carbonates and hydrogen carbonates.
By the end of the lesson, the learner should be able to:
To write equations to show that conc. sulphuric acid is a drying and dehydrating agent.
To describe reactions of dilute H2SO4 with metals.
Discussion and explanations.
Group expts. ? reaction of metals with dilute H2SO4, make observations and relevant deductions; writing corresponding equations.
Magnesium, zinc, copper metals.
charts
K.L.B.
BK III P. 206
Longhorn
Book III
PP 276-8
12 1
SULPHUR AND ITS COMPOUNDS
Dilute H2SO4, and metal oxides and hydroxides.
By the end of the lesson, the learner should be able to:
To investigate reaction of dilute H2SO4 with metal oxides and hydroxides.
Class expts.
Observing colour changes.
Oxides of magnesium, zinc, copper.
NaOH Solution.
K.L.B.
BK III P. 210
Longhorn
Book III
PP 287-8
12 2-3
SULPHUR AND ITS COMPOUNDS
Dilute H2SO4 and metal oxides & hydroxides.
Hydrogen sulphide. Preparation of the gas. Reaction of the gas with oxygen.
By the end of the lesson, the learner should be able to:
To explain reactions of dilute H2SO4 with metal oxides and hydroxides.
To describe preparation of hydrogen sulphide.
To state properties of the gas.
Discussion, writing relevant chemical equations.
Theoretical / descriptive approach.
Writing corresponding equations.
Discuss physical properties of the gas and reaction of the gas with oxygen.
charts

K.L.B.
BK III P. 211
K.L.B.
BK III P. 210
Longhorn
Book III
PP 289-90
12 4
SULPHUR AND ITS COMPOUNDS
Reaction of the gas with water. Reducing properties of the gas.
By the end of the lesson, the learner should be able to:
To write equations for reaction of the gas with water.
To demonstrate reducing properties of the gas.
Writing chemical equations for the reactions.
charts
K.L.B.
BK III P. 212.
Longhorn
Book III
PP 291-2
12 5
SULPHUR AND ITS COMPOUNDS
Sulphur and its effects on the environment.
By the end of the lesson, the learner should be able to:
To explain environmental pollution caused by sulphur and its compounds.
Discussion and explanation.
charts
K.L.B.
BK III P. 214
Longhorn Book
PP 293-5

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