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Chemistry
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TERM II
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WK LSN TOPIC SUB-TOPIC OBJECTIVES T/L ACTIVITIES T/L AIDS REFERENCE REMARKS
1 3-4
CHEMICAL FAMILIES
Chemical properties of alkaline earth metals. Reaction of alkaline earth metals with oxygen.
By the end of the lesson, the learner should be able to:
To describe reaction of alkaline earth metals with oxygen
Q/A: Review reactions of Mg, Ca, with oxygen.
The corresponding word and then chemical equations are then written and their correctness verified by the teacher.
text book
K.L.B. BOOK IIP. 38
2 1
CHEMICAL FAMILIES
Chemical properties of alkaline earth metals. Reaction of alkaline earth metals with water.
By the end of the lesson, the learner should be able to:
To describe reaction of alkaline earth metals with water.
Q/A: Review reaction of metals with water.
Writing down word and balanced chemical equations for the reactions.
Deduce and discuss the order of reactivity down the group.
Some alkaline earth metals.
K.L.B. BOOK IIP. 39
2 2
CHEMICAL FAMILIES
Chemical properties of alkaline earth metals. Reaction of alkaline earth metals with water.
By the end of the lesson, the learner should be able to:
To describe reaction of alkaline earth metals with water.
Q/A: Review reaction of metals with water.
Writing down word and balanced chemical equations for the reactions.
Deduce and discuss the order of reactivity down the group.
Some alkaline earth metals.
K.L.B. BOOK IIP. 39
2 3-4
CHEMICAL FAMILIES
Chemical properties of alkaline earth metals. Reaction of alkaline earth metals with water.
Reaction of alkaline earth metals with chlorine gas.
By the end of the lesson, the learner should be able to:
To describe reaction of alkaline earth metals with water.
To write balanced equations for reaction of alkaline earth metals with chlorine gas.
Q/A: Review reaction of metals with water.
Writing down word and balanced chemical equations for the reactions.
Deduce and discuss the order of reactivity down the group.

Teacher demonstration- Reaction of sodium with chlorine in a fume chamber.
Q/A: Students to predict a similar reaction between potassium and chlorine.
Word and balanced chemical equations for various reactions.
Supervised practice.
Some alkaline earth metals.

Sodium, chlorine.
K.L.B. BOOK IIP. 39
K.L.B. BOOK II P. 41
3 1
CHEMICAL FAMILIES
Reaction of alkaline earth metals with dilute acids.
By the end of the lesson, the learner should be able to:
To write balanced equations for reactions of alkaline earth metals with dilute acids.
Changing word to chemical equations.
Supervised practice.
revision book
K.L.B. BOOK II PP. 43
3 2
CHEMICAL FAMILIES
Reaction of alkaline earth metals with dilute acids.
By the end of the lesson, the learner should be able to:
To write balanced equations for reactions of alkaline earth metals with dilute acids.
Changing word to chemical equations.
Supervised practice.
revision book
K.L.B. BOOK II PP. 43
3 3-4
CHEMICAL FAMILIES
Reaction of alkaline earth metals with dilute acids.
Chemical formulae of alkaline earth metals.
By the end of the lesson, the learner should be able to:
To write balanced equations for reactions of alkaline earth metals with dilute acids.
Write chemical formulae for compounds of alkaline earth metals.
Explain formation of hydroxides, oxides and chlorides of alkaline earth metals.
Changing word to chemical equations.
Supervised practice.
Exercise: Completing a table of hydroxides, oxides and chlorides of alkaline earth metals.
Discuss combination of ions of alkaline earth metals with anions.
revision book
text book
K.L.B. BOOK II PP. 43
K.L.B. BOOK II PP. 45-47
4 1
CHEMICAL FAMILIES
Uses of some alkaline earth metals and their compounds.
By the end of the lesson, the learner should be able to:
State uses of alkaline earth metals.
Descriptive approach: Teacher elucidates uses of alkaline earth metals.
text book
K.L.B. BOOK II PP. 45-47
4 2
CHEMICAL FAMILIES
Uses of some alkaline earth metals and their compounds.
By the end of the lesson, the learner should be able to:
State uses of alkaline earth metals.
Descriptive approach: Teacher elucidates uses of alkaline earth metals.
text book
K.L.B. BOOK II PP. 45-47
4 3-4
CHEMICAL FAMILIES
Uses of some alkaline earth metals and their compounds.
By the end of the lesson, the learner should be able to:
State uses of alkaline earth metals.
Descriptive approach: Teacher elucidates uses of alkaline earth metals.
text book
K.L.B. BOOK II PP. 45-47
5 1
CHEMICAL FAMILIES
Halogens. Physical properties of halogens.
By the end of the lesson, the learner should be able to:
Identify halogens in the periodic table.
Give examples of halogens.
Identify physical states of halogens.
Teacher demonstration: - To examine electrical properties of iodine, solubility in water of chlorine.
Iodine crystals, electrical wire, a bulb.
KLB BK II
P. 47
5 2
CHEMICAL FAMILIES
Comparative physical properties of halogens.
By the end of the lesson, the learner should be able to:
To state and explain the trends in physical properties of halogens.
Examine a comparative table of physical properties of halogens.
Discuss the deductions made from the table.
text book
K.L.B. BOOK II P. 47
5 3-4
CHEMICAL FAMILIES
Chemical properties of halogens.
Equations of reaction of halogens with metals.
By the end of the lesson, the learner should be able to:
To describe laboratory preparation of chlorine gas.

To describe reaction of halogens with metals.
To write balanced chemical equations of reactions involving halogens.
Teacher demonstration: - preparation of chlorine gas.
Reaction of chlorine and iron wool.
Reaction of bromine and iron wool.
Reaction of iodine and iron wool.
Observe the rate of these reactions; hence deduce order of their reactivity of halogens.

Re-write word equations as chemical equations then balance them.
Supervised practice.
Chlorine, iron wool, bromine.
text book
K.L.B. BOOK IIPP. 48-50
K.L.B. BOOK II P. 50
6 1
CHEMICAL FAMILIES
Reaction of halogens with water.
By the end of the lesson, the learner should be able to:
To describe reaction of halogens with water and the results obtained.
Bubbling chlorine gas through water.
Carry out litmus test for the water.
Explain the observations.
Chlorine gas, litmus papers.
K.L.B. BOOK II P. 51
6 2
CHEMICAL FAMILIES
Reaction of halogens with water.
By the end of the lesson, the learner should be able to:
To describe reaction of halogens with water and the results obtained.
Bubbling chlorine gas through water.
Carry out litmus test for the water.
Explain the observations.
Chlorine gas, litmus papers.
K.L.B. BOOK II P. 51
6 3-4
CHEMICAL FAMILIES
Reaction of halogens with water.
By the end of the lesson, the learner should be able to:
To describe reaction of halogens with water and the results obtained.
Bubbling chlorine gas through water.
Carry out litmus test for the water.
Explain the observations.
Chlorine gas, litmus papers.
K.L.B. BOOK II P. 51
7 1
CHEMICAL FAMILIES
Some uses of halogens and their compounds.
By the end of the lesson, the learner should be able to:
To state uses of halogens and their compounds.
Teacher elucidates uses of halogens and their compounds.
text book
K.L.B. BOOK II pp 52
7 2
CHEMICAL FAMILIES
Some uses of halogens and their compounds.
By the end of the lesson, the learner should be able to:
To state uses of halogens and their compounds.
Teacher elucidates uses of halogens and their compounds.
text book
K.L.B. BOOK II pp 52
7 3-4
CHEMICAL FAMILIES
CHEMICAL FAMILIES
STRUCTURE & BONDING
Noble Gases. Comparative physical properties of noble gases.
Uses of noble gases.
Chemical bonds. Ionic bond.
By the end of the lesson, the learner should be able to:
To describe physical properties of noble gases.
To explain physical properties of noble gases.
State uses of noble gases.
Make A comparative analysis of tabulated physical properties of noble gases.
Teacher elucidates uses of noble gases.
text book
  K.L.B. BOOK IIPP. 52-53
K.L.B. BOOK IIP. 54
8

Midterm break
8-9

Midterm break
9 3-4
STRUCTURE & BONDING
Ionic bond representation.
Grant ionic structures.
By the end of the lesson, the learner should be able to:
Use dot and cross diagrams to represent ionic bonding.
Describe the crystalline ionic compound.
Give examples of ionic substances.
Drawing diagrams of ionic bonds.
Discuss the group ionic structures of NaCl.
Teacher gives examples of other ionic substances: KNO3, potassium bromide, Ca (NO3)2, sodium iodide.
Chart- dot and cross diagrams.
Models for bonding.
Giant sodium chloride model.
K.L.B. BOOK II P. 58
K.L.B. BOOK II PP 56-58
10 1
STRUCTURE & BONDING
Physical properties of ionic compounds.
By the end of the lesson, the learner should be able to:
Describe physical properties of ionic compounds.
Explain the differences in the physical properties of ionic compounds.
Analyse tabulated comparative physical properties of ionic compounds.

Teacher asks probing questions.
text book
K.L.B. BOOK IIPP 58-59
10 2
STRUCTURE & BONDING
Covalent bond.
By the end of the lesson, the learner should be able to:
Explain the formation of covalent bond
Use dot and cross diagrams to represent covalent bond.
Exposition: Shared pair of electrons in a hydrogen molecule, H2O, NH3, Cl2, and CO2.
Drawing of dot-and-cross diagrams of covalent bonds.
text book
K.L.B. BOOK II PP 60-63
10 3-4
STRUCTURE & BONDING
Co-ordinate bond.
Molecular structure.
By the end of the lesson, the learner should be able to:
To describe the co-ordinate bond
To represent co-ordinate bond diagrammatically.
To describe the molecular structure.
To give examples of substance exhibiting molecular structure
Exposition- teacher explains the nature of co-ordinate bond.
Students represent co-ordinate bond diagrammatically.
Discussion ? To explain formation of the giant structure and give examples of substance exhibiting molecular structure.
text book
K.L.B. BOOK II P 65
K.L.B. BOOK IIP 65
11 1
STRUCTURE & BONDING
Trend in physical properties of molecular structures.
By the end of the lesson, the learner should be able to:
To describe van- der -waals forces.
To explain the trend in physical properties of molecular structures.
Discuss comparative physical properties of substances. exhibiting molecular structure.
Explain variation in the physical properties.
Sugar, naphthalene, iodine rhombic sulphur.
K.L.B. BOOK IIP 65
11 2
STRUCTURE & BONDING
Giant atomic structure in diamond.
By the end of the lesson, the learner should be able to:
To describe giant atomic structure in diamond.
To state uses of diamond.
Diagrammatic representation of diamond.
Discuss uses of diamond.
Diagrams in textbooks.
K.L.B. BOOK II P 69
11 3-4
STRUCTURE & BONDING
Giant atomic structure in graphite.
Metallic bond. Uses of some metals.
By the end of the lesson, the learner should be able to:
To describe giant atomic structure in graphite.
To state uses of graphite.
To describe mutual electronic forces between electrons and nuclei.
To describe metallic bond.
To compare physical properties of metals.
To state uses of some metals.
Diagrammatic representation of graphite.

Discuss uses of graphite.
Discussion:
Detailed analysis of comparative physical properties of metals and their uses.



Probing questions & brief explanations.
Diagrams in textbooks.
text book
K.L.B. BOOK II pp 69
K.L.B. BOOK IIP 70
12 1
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
12 2
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
12 3-4
PROPERTIES AND TRENDS ACROSS PERIOD THREE
Physical properties of elements in periods.
Physical properties of elements in period 3.
By the end of the lesson, the learner should be able to:




To compare electrical conductivity of elements in period 3
To compare other physical properties of elements across 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.

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 IIP. 76
K.L.B. BOOK II P. 77
13 1
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
13 2
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
13 3-4
PROPERTIES AND TRENDS ACROSS PERIOD THREE
Oxides of period 3 elements.
Chlorides 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.
To explain chemical behavior of their chlorides.
To describe hydrolysis reaction.
Comparative analysis, discussion and explanation.
The periodic table.
K.L.B. BOOK II P. 84
K.L.B. BOOK II PP. 77-78
14

End term exam
14

Closing school

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