| Unit I: TEMPERATURE CONTROL AND VENTILATION |
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Specific Objectives
Students should be able to: |
Explanatory notes
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Suggested Practical Activities
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1. Describe the methods of heat transfer and their applications
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Methods of heat transfer-conduction, convection, radiation.
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Perform simple experiments to demonstrate the transfer of heat. |
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2. Explain the principle by which thermostatically controlled household appliances operate
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Thermostatic control-Electrical and gas ovens, electrical irons.
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Demonstration to illustrate the principle using a bimetallic strip.
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3. Describe the features of thermometers and the principles by which they work
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The thermometer/temperature measurement-Types of thermometers e.g. clinical, laboratory, minimum/maximum thermometers, alcohol and mercury thermometers.
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4. Explain the cooling effect of evaporation
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Latent heat of vaporization, cooling effect of evaporation, relate to the work place; sweating and metabolic rate. |
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5. Discuss the effects of temperature and relative humidity on body functions
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Wind temperature and humidity.
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Conduct simple experiments to investigate the effects of wind, temperature and humidity of the area on evaporation and drying of materials.
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| 6. Explain the need for proper ventilation |
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| 7.*describe how the air conditioner is used. |
The air conditioner; filtering, cooling and airflow treated simply. |
Identify features of buildings, which promote ventilation. |
| Go to Section B: Unit II: WATER AND THE AQUATIC ENVIRONMENT |
integrated Science
These are good instructiion to help us to study and past our CXC.