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Consequences of Over Exploitation of mineral resources on environment
By the end of the lesson, the pupils should have attained the following objectives (cognitive, affective and psychomotor) and should be able to –
name some of the mineral resources found in Nigeria and their sources.
state the importance of mineral resources to Nigeria.
The teacher will teach the lesson with the aid of:
Samples of minerals or ores (or pictures) e.g. tin – ore, crude oil, alum, marble.
Kerosene, Grease, Engine Oil, Polythene bags, Clothing materials, Vaseline, etc.
METHOD OF TEACHING – Choose a suitable and appropriate methods for the lessons.
Note – Irrespective of choosing methods of teaching, always introduce an activities that will arouse pupil’s interest or lead them to the lessons.
Scheme of Work
9 – Years Basic Education Curriculum
All Relevant Material
CONTENT OF THE LESSON
LESSON ONE – INTRODUCTION
PUPIL’S ACTIVITIES 1 – IDENTIFY THE FOLLOWING ITEM AND STATE THE MATERIALS EACH OF THEM MADE FROM
Teacher’s remark – The materials each of the products are made from are called mineral resources.
Classroom Note – Mineral resources are natural resources used to produce many things like hoe, cutlass, plate, spoon, bicycle, car, jewelry, etc. Mineral resources are got from lands including valleys, mountains and hills. Also, crude oil and natural gas are found mostly in riverine areas.
TEACHER’S/PUPIL’S ACTIVITIES 2 – TYPES AND LOCATION OF MINERAL RESOURCES IN NIGERIA
1. Gold is found in Sokoto and Osun State.
2. Iron ore is found Kogi State
3. Tin and Columbite are found in Jos in Plateau State
4. Red clay is found in most of the States.
5. Copper is found in Nasarawa, Plateau, Zamfara, Bauchi, Gombe State, Abia and Kano State
6. Coal is found Enugu.
7. Limestone is found in Cross River, Ebonyi, Abia, Akwa Ibom, Anambra, Bauchi, Bayelsa, Benue, Borno, Edo, Enugu, Imo, Ogun, Ondo and Sokoto.
Crude oil is the mineral in liquid form. It is mainly found in Akwa Ibom, Delta, Rivers, Bayelsa, Ondo, Edo, Imo and Abia.
Natural gas is usually found around crude oil. Often natural gas is found before crude oil.
PUPIL’S ACTIVITIES 3 – INDICATE THE MINERAL RESOURCES FOUND IN ANY OF STATES ON THE MAP
TEACHER’S/PUPIL’S ACTIVITIES 4 – PRODUCTS (USES) AND THEIR MINERAL RESOURCES
1. Petrol and Kerosene
Mineral resources – Crude oil
Diesel oil, lubricating oil, wax, etc. are products make from crude oil.
Mineral resources – Copper, Gold, Silver and Diamond
Electric cables, tools and ornaments are products made from copper, gold, silver and diamond.
3. Tin containers
Mineral resource – Tin
4. Bricks and Pottery
Mineral resource – Red clay
5. Electric cable
Mineral resources – Aluminium and Copper
Cooking utensils and aircraft are product made from aluminum.
6. Steel used in building houses and cars
Mineral resource – Iron ore
7. Pipes and pencils
Mineral resource – Lead
Mineral resource – Sulphur
Gun powder and ointments are products made from sulphur.
9. Cooking and Smelting
Mineral resources – Natural gas and Coal
TEACHER’S/PUPIL’S ACTIVITIES 5 – CONSEQUENCES OF OVER EXPORTATION OF MINERAL RESOURCES
Most our mineral resources are found in soil, valleys, mountains and hills. Some are found in the riverine areas. Places where these resources are got from never remain in good condition.
The primary vegetations are distributed or destroyed resulting to land pollution.
Oil splash or spills in the water disturbed or destroyed the animals in the water.
The natural gas diffused in the air caused air pollution.
People are displaced or killed due to over exploitation which made the land water and air unsafe for humans.
Note to the teachers, this lesson maybe takes more than three (3) periods as indicated on the time table.
To deliver the lesson, the teacher adopts the following steps:
1. To introduce the lesson, the teacher revises the previous lesson. Based on this, he/she asks the pupils some questions;
2. Collects samples of minerals e.g. tin ore, coal, iron ore, crude oil etc for class activities. (Can use pictures where samples are not available).
Pupil’s Activities – Observe the minerals provided and describe their characteristics (colour, shine, smell, hardness, etc).
3. Leads pupils to identify minerals.
Pupil’s Activities – Examine crude, petroleum and compare it with products such as kerosene, engine oil, Vaseline, grease, wax, polythene bags, clothing materials, etc.
4. Uses charts and relevant pictures to explain the sources of the minerals.
Pupil’s Activities – State the source of minerals.
5. Guides class discussion on the uses and importance of mineral.
Pupil’s Activities – State some importance of mineral resources to Nigeria.
7. Arranges for a guest talk on the exploitation, development and use of mineral resources.
Pupil’s Activities – Listen to the guest speaker.
EXCURSION (VISITATION), IF POSSIBLE
Pay a visit to one or two place(s) or people to find out how different products are made or sold.
1. Play station
4. Extraction industry
To conclude the lesson for the week, the teacher revises the entire lesson and links it to the following week’s lesson.