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Chemistry
Form 2 2025
TERM II
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WK LSN TOPIC SUB-TOPIC OBJECTIVES T/L ACTIVITIES T/L AIDS REFERENCE REMARKS
2 4
PROPERTIES AND TRENDS ACROSS PERIOD THREE
Physical properties of elements in periods.
By the end of the lesson, the learner should be able to:




To compare electrical conductivity of elements in period 3
Group experiments- Construct electrical circuits incorporating a magnesium ribbon, then aluminum foil, then sulphur in turns.
The brightness of the bulb is noted in each case.
Discuss the observations in terms of delocalised electrons.
The periodic table.
K.L.B. BOOK IIP. 76
2 5
PROPERTIES AND TRENDS ACROSS PERIOD THREE
Physical properties of elements in periods.
By the end of the lesson, the learner should be able to:




To compare electrical conductivity of elements in period 3
Group experiments- Construct electrical circuits incorporating a magnesium ribbon, then aluminum foil, then sulphur in turns.
The brightness of the bulb is noted in each case.
Discuss the observations in terms of delocalised electrons.
The periodic table.
K.L.B. BOOK IIP. 76
3 1
PROPERTIES AND TRENDS ACROSS PERIOD THREE
Physical properties of elements in period 3.
By the end of the lesson, the learner should be able to:
To compare other physical properties of elements across period 3.
Analyse comparative physical properties presented in form of a table.
Explain the trend in the physical properties given.
The periodic table.
K.L.B. BOOK II P. 77
3 2-3
PROPERTIES AND TRENDS ACROSS PERIOD THREE
Physical properties of elements in period 3.
By the end of the lesson, the learner should be able to:
To compare other physical properties of elements across period 3.
Analyse comparative physical properties presented in form of a table.
Explain the trend in the physical properties given.
The periodic table.
K.L.B. BOOK II P. 77
3 4
PROPERTIES AND TRENDS ACROSS PERIOD THREE
Physical properties of elements in period 3.
By the end of the lesson, the learner should be able to:
To compare other physical properties of elements across period 3.
Analyse comparative physical properties presented in form of a table.
Explain the trend in the physical properties given.
The periodic table.
K.L.B. BOOK II P. 77
3 5
PROPERTIES AND TRENDS ACROSS PERIOD THREE
Chemical properties of elements in period 3.
By the end of the lesson, the learner should be able to:
To compare reactions of elements in period 3 with oxygen.
Q/A: Products of reactions of Na, Mg, Al, P, & S with oxygen.
Discuss the trend in their reactivity; identify basic and acidic oxides.
Exercise ? balanced chemical equations for the above reactions.
The periodic table.
K.L.B. BOOK II PP. 79-80
4 1
PROPERTIES AND TRENDS ACROSS PERIOD THREE
Chemical properties of elements in the third period.
By the end of the lesson, the learner should be able to:
To compare reactions of elements in period 3 with water
Q/A: Review reaction of sodium, Mg, chlorine, with water.
Infer that sodium is most reactive metal; non-metals do not react with water.
The periodic table.
K.L.B. BOOK II PP. 80-81
4 2-3
PROPERTIES AND TRENDS ACROSS PERIOD THREE
Chemical properties of elements in the third period.
Oxides of period 3 elements.
By the end of the lesson, the learner should be able to:
To compare reactions of elements in period 3 with water
To identify bonds across elements in period 3.
To explain chemical behavior of their oxide.
Q/A: Review reaction of sodium, Mg, chlorine, with water.
Infer that sodium is most reactive metal; non-metals do not react with water.

Comparative analysis, discussion and explanation.
The periodic table.
K.L.B. BOOK II PP. 80-81
K.L.B. BOOK II P. 84
4 4
PROPERTIES AND TRENDS ACROSS PERIOD THREE
Oxides of period 3 elements.
By the end of the lesson, the learner should be able to:
To identify bonds across elements in period 3.
To explain chemical behavior of their oxide.
Comparative analysis, discussion and explanation.
The periodic table.
K.L.B. BOOK II P. 84
4 5
PROPERTIES AND TRENDS ACROSS PERIOD THREE
Chlorides of period 3 elements.
By the end of the lesson, the learner should be able to:
To explain chemical behavior of their chlorides.
To describe hydrolysis reaction.
Comparative analysis, discussion and explanation.
The periodic table.
K.L.B. BOOK II PP. 77-78
5 1
SALTS
Types of salts.
By the end of the lesson, the learner should be able to:
Define a salt.
Describe various types of salts and give several examples in each case.
Descriptive approach. Teacher exposes new concepts.
text book
K.L.B. BOOK II P. 91
5 2-3
SALTS
Types of salts.
Solubility of salts in water.
By the end of the lesson, the learner should be able to:
Define a salt.
Describe various types of salts and give several examples in each case.
To test solubility of various salts in cold water/warm water.
Descriptive approach. Teacher exposes new concepts.
Class experiments- Dissolve salts in 5 cc of water.
Record the solubility in a table,
Analyse the results.
text book
Sulphates, chlorides, nitrates, carbonates of various metals.
K.L.B. BOOK II P. 91
K.L.B. BOOK II PP. 92-93
5 4
SALTS
Solubility of salts in water.
By the end of the lesson, the learner should be able to:
To test solubility of various salts in cold water/warm water.
Class experiments- Dissolve salts in 5 cc of water.
Record the solubility in a table,
Analyse the results.
Sulphates, chlorides, nitrates, carbonates of various metals.
K.L.B. BOOK II PP. 92-93
5 5
SALTS
Solubility of salts in water.
By the end of the lesson, the learner should be able to:
To test solubility of various salts in cold water/warm water.
Class experiments- Dissolve salts in 5 cc of water.
Record the solubility in a table,
Analyse the results.
Sulphates, chlorides, nitrates, carbonates of various metals.
K.L.B. BOOK II PP. 92-93
6 1
SALTS
Solubility of bases in water.
By the end of the lesson, the learner should be able to:
To test solubility of various bases in water.
To carry out litmus test on the resulting solutions.
Class experiments- Dissolve salts in 5cc of water.
Record the solubility in a table,
Carry out litmus tests.
Discuss the results.
Oxides, hydroxides, of various metals, litmus papers.
K.L.B. BOOK IIPP. 94-95
6 2-3
SALTS
Solubility of bases in water.
Methods of preparing various salts.
By the end of the lesson, the learner should be able to:
To test solubility of various bases in water.
To carry out litmus test on the resulting solutions.
To describe various methods of preparing some salts.
Class experiments- Dissolve salts in 5cc of water.
Record the solubility in a table,
Carry out litmus tests.
Discuss the results.


Experimental and descriptive treatments of preparation of salts e.g. ZnSO4, CuSO4, NaCl and Pb(NO3)2.

Oxides, hydroxides, of various metals, litmus papers.
CuO, H2SO4, HCl, NaOH, PbCO3, dil HNO3.
K.L.B. BOOK IIPP. 94-95
K.L.B. BOOK II pp96
6 4
SALTS
Methods of preparing various salts.
By the end of the lesson, the learner should be able to:
To describe various methods of preparing some salts.
Experimental and descriptive treatments of preparation of salts e.g. ZnSO4, CuSO4, NaCl and Pb(NO3)2.

CuO, H2SO4, HCl, NaOH, PbCO3, dil HNO3.
K.L.B. BOOK II pp96
6 5
SALTS
Methods of preparing various salts.
By the end of the lesson, the learner should be able to:
To describe various methods of preparing some salts.
Experimental and descriptive treatments of preparation of salts e.g. ZnSO4, CuSO4, NaCl and Pb(NO3)2.

CuO, H2SO4, HCl, NaOH, PbCO3, dil HNO3.
K.L.B. BOOK II pp96
7 1
SALTS
Direct synthesis of a salts.
By the end of the lesson, the learner should be able to:
To describe direct synthesis of a salt.
To write balanced equations for the reactions.
Group experiments- preparation of iron (II) sulphide by direct synthesis.
Give other examples of salts prepared by direct synthesis.
Students write down corresponding balanced equations.
Iron,
Sulphur
K.L.B. BOOK II P. 104
7 2-3
SALTS
Direct synthesis of a salts.
By the end of the lesson, the learner should be able to:
To describe direct synthesis of a salt.
To write balanced equations for the reactions.
Group experiments- preparation of iron (II) sulphide by direct synthesis.
Give other examples of salts prepared by direct synthesis.
Students write down corresponding balanced equations.
Iron,
Sulphur
K.L.B. BOOK II P. 104
7 4
SALTS
Direct synthesis of a salts.
By the end of the lesson, the learner should be able to:
To describe direct synthesis of a salt.
To write balanced equations for the reactions.
Group experiments- preparation of iron (II) sulphide by direct synthesis.
Give other examples of salts prepared by direct synthesis.
Students write down corresponding balanced equations.
Iron,
Sulphur
K.L.B. BOOK II P. 104
7 5
SALTS
Ionic equations.
By the end of the lesson, the learner should be able to:
To identify spectator ions in double decomposition reactions.
To write ionic equations correctly.
Q/A: Ions present in given reactants.
Deduce the products of double decomposition reactions.
Give examples of equations.
Supervised practice.
PbNO3, MgSO4 solutions.
K.L.B. BOOK II
8

MID TERM BREAK
9 1
SALTS
Effects of heat on carbonates.
By the end of the lesson, the learner should be able to:
To state effects of heat on carbonates.
To predict products resulting from heating metal carbonates.
Group experiments- To investigate effects of heat on Na2CO3, K2CO3, CaCO3, ZnCO3, PbCO3, e.t.c.
Observe various colour changes before, during and after heating.
Write equations for the reactions.
Various carbonates.
K.L.B. BOOK II PP. 108-109
9 2-3
SALTS
Effects of heat on carbonates.
By the end of the lesson, the learner should be able to:
To state effects of heat on carbonates.
To predict products resulting from heating metal carbonates.
Group experiments- To investigate effects of heat on Na2CO3, K2CO3, CaCO3, ZnCO3, PbCO3, e.t.c.
Observe various colour changes before, during and after heating.
Write equations for the reactions.
Various carbonates.
K.L.B. BOOK II PP. 108-109
9 4
SALTS
Effects of heat on nitrates.
By the end of the lesson, the learner should be able to:
To state effects of heat on nitrates.
To predict products resulting from heating metal nitrates.
Group experiments- To investigate effects of heat on various metal nitrates.
Observe various colour changes before, during and after heating.
Write equations for the reactions.
Common metal nitrates.
K.L.B. BOOK II PP. 110-111
9 5
SALTS
Effects of heat on nitrates.
By the end of the lesson, the learner should be able to:
To state effects of heat on nitrates.
To predict products resulting from heating metal nitrates.
Group experiments- To investigate effects of heat on various metal nitrates.
Observe various colour changes before, during and after heating.
Write equations for the reactions.
Common metal nitrates.
K.L.B. BOOK II PP. 110-111
10 1
SALTS
Effects of heat on sulphates.
By the end of the lesson, the learner should be able to:
To state effects of heat on sulphates.
To predict products results from heating metal sulphates.
Group experiments- To investigate effects of heat on various sulphates.
Observe various colour changes before, during and after heating.
Write equations for the reactions.
Common sulphates.
K.L.B. BOOK II P. 113
10 2-3
SALTS
Hygroscopy, Deliquescence and Efflorescence.
By the end of the lesson, the learner should be able to:
To define hygroscopic deliquescent and efflorescent salts.
To give examples of hygroscopic deliquescent and efflorescent salts.
Prepare a sample of various salts.
Expose them to the atmosphere overnight.
Students classify the salts as hygroscopic, deliquescent and / or efflorescent.

K.L.B. BOOK II P. 114
10 4
SALTS
Uses of salts.
By the end of the lesson, the learner should be able to:
To state uses of salts
Teacher elucidates uses of salts.
K.L.B. BOOK II P. 114
10 5
EFFECTS OF AN ELECTRIC CURRENT ON SUBSTANCES.
Electrical conductivity.
By the end of the lesson, the learner should be able to:
To test for electrical conductivities of substances.
Group experiments- to identify conductors and non-conductors.
Explain the difference in (non) conductivities.
Various solids, bulb, battery, & wires.
K.L.B. BOOK II PP. 118-119

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