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UNIT III - EARTH MOVEMENTS AND THEIR EFFECTS
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Specific Objectives
Students should be able to:
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Explanatory notes
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Suggested Practical Activities
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1
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Explain the formation of land and sea breezes;
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Consideration that hot air rises and cold air sinks.
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Conduct convection experiments.
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2
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Describe the various types of air masses
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Air masses affecting the Caribbean;
the spread of pollutants by moving air masses;
radioactive fall-out, volcanic dust, industrial waste, Sahara dust, landfill fumes
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Demonstrate by using- telephones; springs; lamps; shock absorbers in vehicles; batteries; electric motor
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3
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Distinguish between the four types of local fronts |
Consider how they effect the weather
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Keep records of local fronts (cold, warm, stationary, occluded) obtained form weather forecasts, relate them to weather patterns observed;
Collect records of hurricanes in the Caribbean to trace their paths on weather maps
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4
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Describe the characteristics of a cyclonic storm, particularly a hurricane |
Consider conservation of linear momentum
(refer to vehicular collision)
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Use the momentum conservation principle to predict the outcomes of collision;
use simple qualitative trolley experiments
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| 5. |
Describe tidal waves and how they are formed |
Underwater landslides, volcanoes and earthquake:
describe a tsunami and how it is formed;
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| 6. |
Discuss the causes of the different types of volcanic eruptions |
The ecological consequences of volcanoes in the short and long term |
Use models to show volcanic eruptions |
| 7. |
Describe the different types of seismic waves |
The function of a seismograph |
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| 8. |
Discuss the relationship between earthquakes and volcanoes |
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Plot occurrences of earthquakes and volcanic activity on a map of the Caribbean, Keep records of tidal patterns |
| 9. |
Describe how tides are formed |
Some effects of tides |
Study of plant and animal life on seashores or river banks with respect to tidal patterns.
Keep records of tidal patterns.
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