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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
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
2 2-3
Volumetric Analysis.
Combining volumes of gases.
Gay Lussac?s Law.
By the end of the lesson, the learner should be able to:
To compare combining volumes of two reacting gases.
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 demonstration: - Determining volumes of reacting gases; hence deduce volume rations.
Teacher exposes the law; and compares it with Gay Lussac?s Law.
Worked examples.
Supervised practice.
student book
K.L.B BK III
P. 82
K.L.B. BK III
P. 85

Longhorn
Book III
PP 129-131
2 4
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 5
ORGANIC CHEMISTRY (I)
Naming Alkanes.
Members of Alkane series.
By the end of the lesson, the learner should be able to:
To identify various alkanes.
To define a homologous series.
Discussion and exposition of new concepts.
student book
Chart- structure of alkanes.
K.L.B. BK III
PP. 94-98
Longhorn
Book III
PP 136-139
3 1
ORGANIC CHEMISTRY (I)
Isomerism in alkanes.
By the end of the lesson, the learner should be able to:
To draw and name isomers of simple hydrocarbons.
Discussion and exposition of new concepts.
Models.
K.L.B. BK III
PP. 101-102 Longhorn Book III
PP 141-2
3 2-3
ORGANIC CHEMISTRY (I)
Laboratory preparation of a given alkane.
Trend in physical properties of alkanes.
Chemical 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.
Describe chemical properties of alkanes.
Teacher demonstration.
Discussion.
Discussion
Examples of balanced equations.
Sodium ethanoate, sodalime,
Pestle and mortar.
student book
K.L.B. BK III
P. 103

Longhorn
Book III
PP 146

K.L.B. BK III
P. 107
Longhorn
Book III
PP 148-9
3 4
ORGANIC CHEMISTRY (I)
Substitution reactions involving alkanes. Uses of alkanes.
Alkenes. Molecular formulae of alkenes.
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
3 5
ORGANIC CHEMISTRY (I)
Naming alkenes.
Alkene isomerism.
By the end of the lesson, the learner should be able to:
To name various alkenes.
Q/Q: Nomenclature in alkenes.
Compare alkenes; hence deduce names of various alkenes.
student book
K.L.B. BK III
PP. 110-113
Longhorn
Book III
PP 154-6
4 1
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 2-3
ORGANIC CHEMISTRY (I)
Physical properties of ethene.
Chemical properties of ethene.
Alkenes and oxidizing agents.
Uses of alkenes & Topic review.
By the end of the lesson, the learner should be able to:
To describe physical properties of ethene and other alkenes.
To describe reactions of alkenes with oxidizing agents.
To discuss physical properties of ethene and other alkenes.


Review the double bonds in alkenes.
Review reduction process, oxidizing agent.
Discuss reactions of alkenes with conc. H2SO4, acidified potassium chromate.
Expose hydrolysis process.

student book
charts
K.L.B. BK III
PP. 116-117
Longhorn Book III
PP 126-129
165-6

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


Longhorn
Book III
PP 166-8
4 4
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 5
ORGANIC CHEMISTRY (I)
Isomerism in alkynes.
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 1
ORGANIC CHEMISTRY (I)
Physical properties of ethyne.
Chemical properties of ethyne.
By the end of the lesson, the learner should be able to:
To list down physical properties of ethyne.
Teacher demonstration: Preparation of ethyne.
Deduce properties of other alkynes.
charts
K.L.B. BK III
PP. 125-126
Longhorn
Book III
PP 197-80
5 2-3
ORGANIC CHEMISTRY (I)
NITROGEN & ITS COMPOUNDS.
Tests for alkynes. Uses of alkynes.
Isolation of nitrogen from air.
Industrial production of nitrogen.
By the end of the lesson, the learner should be able to:
To describe tests for alkynes and state uses of alkynes.



Describe isolation of nitrogen from air.
Discussion and explanations.

Assignment.



Teacher demonstration, explanations and equations.
charts
Aspirator, copper turnings, gas jar, combustion tube, trogh.
charts
K.L.B. BK III
P.130

Longhorn Book III
PP 180-84

K.L.B. BK III
PP. 134-135

Longhorn Book
P 186
5 4
NITROGEN & ITS COMPOUNDS.
Lab. preparation of nitrogen.
By the end of the lesson, the learner should be able to:
Describe lab preparation of nitrogen.
Teacher demonstration:
Students? record observations made from tests on the gas.
Writing equations of reactions.
Ammonium chloride, sodium nitrate
K.L.B. BK III
P. 137

Longhorn
Book III
P 190-1
5 5
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 1
NITROGEN & ITS COMPOUNDS.
Nitrogen (I) oxide. Lab preparation.
Properties and uses of Nitrogen (I) oxide.
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.
charts
K.L.B. BK III
PP. 139-141

Longhorn
Book III
PP 195-6
6 2-3
NITROGEN & ITS COMPOUNDS.
Nitrogen (II) oxide. Lab preparation.
Properties of the gas.
Nitrogen (1V) oxide Lab preparation.
By the end of the lesson, the learner should be able to:
To describe lab preparation of nitrogen (II) oxide.
To list down physical properties of nitrogen (II) oxide
To describe chemical properties of nitrogen (11) oxide
Class experiment: Preparation and carrying out tests on the gas.
Observations recorded in a table.

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.
Dil nitric acid, copper turnings.
charts
Conc. nitric acid, copper turnings.
K.L.B. BK III
P. 142
Longhorn
Book III
PP 200-1

K.L.B.
BK III
P. 143

Longhorn
Book III
PP 192-200
6 4
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 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
7 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
7 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 describe burning ammonia in the air.
Teacher demonstration: - Preparation of aqueous solution of ammonia.

Class experiments: -
Students record observations when drops of aqueous ammonia are added, then in excess.
Teacher demonstration
Discussion
Chemical equations of reactions.
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. 158
Longhorn
Book III
PP 219
7 4
NITROGEN & ITS COMPOUNDS.
Reaction of ammonia with copper (II) Oxide.
Haber process.
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.
Chart- schematic diagram.

K.L.B.
BK III
P. 158
7 5
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
8

Midterm exams and break

9 1
NITROGEN & ITS COMPOUNDS.
Nitric acid Industrial manufacture.
By the end of the lesson, the learner should be able to:
To describe industrial manufacture of nitric acid.
Discussion and writing equations.
Chart
Schematic diagram.
K.L.B. BK III
P. 164
9 2-3
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.
To describe action of nitric acid on carbonates and hydrogen carbonates.
Class experiment:- making observations and recording them in a table.
Discuss the observations.
Write down equations for the reactions.
Group experiments: - Action of Nitric acid on hydrogen carbonates.
Magnesium
Zinc
Copper
Solutions of
Na2CO3
NaHCO3
ZnCO3
CuCO3
K.L.B. BK III
PP. 165-166

Longhorn
Book III
PP 166-8

K.L.B. BK III
P. 167

Longhorn
Book III
229-30
9 4
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
9 5
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
10 1
NITROGEN & ITS COMPOUNDS.
Uses of nitric acid & nitrates.
By the end of the lesson, the learner should be able to:
To state uses of nitrates.
To describe preparation of nitrates.
Discussion
Equations for the reactions for preparation of nitrates.
charts
K.L.B. BK III
P. 171

Longhorn Book III
PP 240
10 2-3
NITROGEN & ITS COMPOUNDS.
Action of heat on nitrates.
Test for nitrates.
Nitrogen compounds and the environment.
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
10 4
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
10 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
11 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
11 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
11 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
11 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
12 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
12 2
SULPHUR AND ITS COMPOUNDS
Sulphuric acid. Contact process of manufacture.
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.
Discussion using schematic
flow charts.
Writing equations.
Chart-schematic
Flow charts.

K.L.B. BK III
PP.201-203
Longhorn
Book III
PP 275-6
12 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
12 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
12 5
SULPHUR AND ITS COMPOUNDS
Chemical properties of Sulphuric acid.
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.
K.L.B.
BK III P. 206
Longhorn
Book III
PP 276-8

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