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| WK | LSN | TOPIC | SUB-TOPIC | OBJECTIVES | T/L ACTIVITIES | T/L AIDS | REFERENCE | REMARKS |
|---|---|---|---|---|---|---|---|---|
| 1 | 1 |
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
|
|
| 1 | 2 |
EFFECTS OF AN ELECTRIC CURRENT ON SUBSTANCES.
|
Molten electrolytes.
|
By the end of the
lesson, the learner
should be able to:
To test for electrical conductivities molten electrolytes. |
Group experiments- to identify electrolytes in molten form.
Explain the difference in molten electrolytes. |
Molten candle wax
Sugar Sulphur Lead oxide. |
K.L.B. BOOK IIPP. 120-121
|
|
| 1 | 3-4 |
EFFECTS OF AN ELECTRIC CURRENT ON SUBSTANCES.
|
Molten electrolytes.
Electrolysis. |
By the end of the
lesson, the learner
should be able to:
To test for electrical conductivities molten electrolytes. To define electrolysis To describe the process of electrolysis in terms of charge movement. |
Group experiments- to identify electrolytes in molten form.
Explain the difference in molten electrolytes. Descriptive approach punctuated with Q/A. |
Molten candle wax
Sugar Sulphur Lead oxide. |
K.L.B. BOOK IIPP. 120-121
|
|
| 2 | 1 |
EFFECTS OF AN ELECTRIC CURRENT ON SUBSTANCES.
|
Aqueous electrolytes.
Electrodes.
|
By the end of the
lesson, the learner
should be able to:
To define an electrolyte To test for electrical conductivities of electrodes. |
To investigate chemical effect of an electric current.
Classify the solutions as electrolyte or non -electrolytes. Discuss the electrical properties of the solutions. |
Graphite electrodes
Battery Various aqueous solutions switch bulb. |
K.L.B. BOOK II PP.122-123
|
|
| 2 | 2 |
EFFECTS OF AN ELECTRIC CURRENT ON SUBSTANCES.
|
Aqueous electrolytes.
Electrodes.
|
By the end of the
lesson, the learner
should be able to:
To define an electrolyte To test for electrical conductivities of electrodes. |
To investigate chemical effect of an electric current.
Classify the solutions as electrolyte or non -electrolytes. Discuss the electrical properties of the solutions. |
Graphite electrodes
Battery Various aqueous solutions switch bulb. |
K.L.B. BOOK II PP.122-123
|
|
| 2 | 3-4 |
EFFECTS OF AN ELECTRIC CURRENT ON SUBSTANCES.
|
Reaction on electrodes.
|
By the end of the
lesson, the learner
should be able to:
To describe half- equation reactions at the cathode and anode |
To demonstrate ?Electrolysis of molten lead (II) bromide
Observe colour changes Explanation of half-equations and reactions at the electrodes. |
Graphite electrodes
Battery Various aqueous solutions switch. |
K.L.B. BOOK II PP.126-127
|
|
| 3 | 1 |
EFFECTS OF AN ELECTRIC CURRENT ON SUBSTANCES.
|
Binary electrolyte.
|
By the end of the
lesson, the learner
should be able to:
To define a binary electrolyte. To state the products of a binary electrolyte. |
Completing a table of electrolysis of binary electrolytes.
|
text book
|
K.L.B. BOOK II P.127
|
|
| 3 | 2 |
EFFECTS OF AN ELECTRIC CURRENT ON SUBSTANCES.
|
Application of electrolysis.
|
By the end of the
lesson, the learner
should be able to:
To state application of electrolysis. |
Discussion and explanations.
|
text book
|
K.L.B. BOOK II P. 128
|
|
| 3 | 3-4 |
EFFECTS OF AN ELECTRIC CURRENT ON SUBSTANCES.
|
Application of electrolysis.
Electroplating. |
By the end of the
lesson, the learner
should be able to:
To state application of electrolysis. To describe electroplating process. |
Discussion and explanations.
Experiment- Left overnight. Electroplating an iron nail with silver nitrate/ copper sulphate. Brief discussion. |
text book
Silver nitrate Iron nail Complete circuit battery. |
K.L.B. BOOK II P. 128
K.L.B. BOOK II PP. 129-30 |
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