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UNIT XI - THE TERRESTRIAL ENVIRONMENT
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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
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*discuss the origin of soils and categorize factors which influence soil formation; |
Physical and chemical weather and biological action;
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2
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Discuss the character and functions of soils;
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Sand, loam and clay; sedimentation method;
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3
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Compare the different types of soils; |
Water holding capacity, drainage, air content
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Quantitative work with humus. Demonstrate their physical properties.
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4
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Relate soil fertility to the physical and chemical properties of soil; |
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Make inferences about plant growth after making soil tests
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5
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Identify causes of soil erosion and methods or prevention; |
Evaluation of the soil as an important natural resource
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Field trips
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Compare and contrast farming methods; |
Determination of which methods will result in maximum crop yields with the minimum depletion in soil nutrients |
Visits to nearby farms; study of common agricultural practices needed to maintain crop growth; need for conservation |
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Discuss food chains and food webs found in an environment; |
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Draw simple food chains and food webs |
| 8 |
Describe the oxygen, carbon, nitrogen and water cycles. |
Producer, consumers( first and second order) decomposers, habitat, herbivores, carnivores, omnivores, population, community, ecosystem; the role of nitrogen-fixing and denitrifying bacteria in soi.l |
Observe plants and animals in a nearby area or the school grounds and classify them as producers, consumers, decomposers, herbivores, carnivores. |
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Go to Section C: RECREATION
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