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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 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
1 2-3
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
1 4
CHEMICAL FAMILIES
Chemical properties of halogens.
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.
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.
Chlorine, iron wool, bromine.
K.L.B. BOOK IIPP. 48-50
2 1
CHEMICAL FAMILIES
Equations of reaction of halogens with metals.
By the end of the lesson, the learner should be able to:
To write balanced chemical equations of reactions involving halogens.
Re-write word equations as chemical equations then balance them.
Supervised practice.
text book
K.L.B. BOOK II P. 50
2 2-3
CHEMICAL FAMILIES
Equations of reaction of halogens with metals.
By the end of the lesson, the learner should be able to:
To write balanced chemical equations of reactions involving halogens.
Re-write word equations as chemical equations then balance them.
Supervised practice.
text book
K.L.B. BOOK II P. 50
2 4
CHEMICAL FAMILIES
Equations of reaction of halogens with metals.
By the end of the lesson, the learner should be able to:
To write balanced chemical equations of reactions involving halogens.
Re-write word equations as chemical equations then balance them.
Supervised practice.
text book
K.L.B. BOOK II P. 50
3 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
3 2-3
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
3 4
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
4 1
CHEMICAL FAMILIES
Noble Gases. Comparative physical properties of noble gases.
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.
Make A comparative analysis of tabulated physical properties of noble gases.
text book
  K.L.B. BOOK IIPP. 52-53
4 2-3
CHEMICAL FAMILIES
Noble Gases. Comparative physical properties of noble gases.
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.
Make A comparative analysis of tabulated physical properties of noble gases.
text book
  K.L.B. BOOK IIPP. 52-53
4 4
CHEMICAL FAMILIES
Uses of noble gases.
By the end of the lesson, the learner should be able to:
State uses of noble gases.
Teacher elucidates uses of noble gases.
text book
K.L.B. BOOK IIP. 54
5 1
STRUCTURE & BONDING
Chemical bonds. Ionic bond.
By the end of the lesson, the learner should be able to:
Describe role of valence electrons in determining chemical bonding.


Explain formation of ionic bonding.
Q/A: Review valence electrons of atoms of elements in groups I, II, III, VII and VIII.
Q/A: Review group I and group VII elements.
Discuss formation of ionic bond.
text book
K.L.B. BOOK IIP54




PP 57-58
5 2-3
STRUCTURE & BONDING
Chemical bonds. Ionic bond.
Ionic bond representation.
By the end of the lesson, the learner should be able to:
Describe role of valence electrons in determining chemical bonding.


Explain formation of ionic bonding.
Use dot and cross diagrams to represent ionic bonding.
Q/A: Review valence electrons of atoms of elements in groups I, II, III, VII and VIII.
Q/A: Review group I and group VII elements.
Discuss formation of ionic bond.

Drawing diagrams of ionic bonds.
text book
Chart- dot and cross diagrams.
Models for bonding.
K.L.B. BOOK IIP54




PP 57-58
K.L.B. BOOK II P. 58
5 4
STRUCTURE & BONDING
Grant ionic structures.
By the end of the lesson, the learner should be able to:
Describe the crystalline ionic compound.
Give examples of ionic substances.
Discuss the group ionic structures of NaCl.
Teacher gives examples of other ionic substances: KNO3, potassium bromide, Ca (NO3)2, sodium iodide.
Giant sodium chloride model.
K.L.B. BOOK II PP 56-58
6-7

Half-term/cat 1
8 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
8 2-3
STRUCTURE & BONDING
Physical properties of ionic compounds.
Covalent bond.
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.
Explain the formation of covalent bond
Use dot and cross diagrams to represent covalent bond.
Analyse tabulated comparative physical properties of ionic compounds.

Teacher asks probing questions.
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 IIPP 58-59
K.L.B. BOOK II PP 60-63
8 4
STRUCTURE & BONDING
Co-ordinate bond.
By the end of the lesson, the learner should be able to:
To describe the co-ordinate bond
To represent co-ordinate bond diagrammatically.
Exposition- teacher explains the nature of co-ordinate bond.
Students represent co-ordinate bond diagrammatically.
text book
K.L.B. BOOK II P 65
9 1
STRUCTURE & BONDING
Molecular structure.
By the end of the lesson, the learner should be able to:
To describe the molecular structure.
To give examples of substance exhibiting molecular structure
Discussion ? To explain formation of the giant structure and give examples of substance exhibiting molecular structure.
text book
K.L.B. BOOK IIP 65
9 2-3
STRUCTURE & BONDING
Molecular structure.
Trend in physical properties of molecular structures.
By the end of the lesson, the learner should be able to:
To describe the molecular structure.
To give examples of substance exhibiting molecular structure
To describe van- der -waals forces.
To explain the trend in physical properties of molecular structures.
Discussion ? To explain formation of the giant structure and give examples of substance exhibiting molecular structure.
Discuss comparative physical properties of substances. exhibiting molecular structure.
Explain variation in the physical properties.
text book
Sugar, naphthalene, iodine rhombic sulphur.
K.L.B. BOOK IIP 65
9 4
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
10 1
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
10 2-3
STRUCTURE & BONDING
Giant atomic structure in graphite.
By the end of the lesson, the learner should be able to:
To describe giant atomic structure in graphite.
To state uses of graphite.
Diagrammatic representation of graphite.

Discuss uses of graphite.
Diagrams in textbooks.
K.L.B. BOOK II pp 69
10 4
STRUCTURE & BONDING
Metallic bond. Uses of some metals.
By the end of the lesson, the learner should be able to:
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.
Discussion:
Detailed analysis of comparative physical properties of metals and their uses.



Probing questions & brief explanations.
text book
K.L.B. BOOK IIP 70

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