Agents of Soil Formation (Primary 5)

 

 

AGRICULTURE 

PREVOCATIONAL STUDIES

FIRST TERM 

WEEK 3

WEEK 4

PRIMARY 5

THEME – AGRICULTURE 

PREVIOUS LESSON – SOIL FORMATION 

TOPIC: AGENTS OF SOIL FORMATION 

 

PERFORMANCE OBJECTIVES

By the end of the lesson, the pupils should have attained the following objectives (cognitive, affective and psychomotor)and be able to list agents of formation.

 

 

ENTRY BEHAVIOR

Growing crops

 

INSTRUCTIONAL MATERIALS

The teacher will teach the lesson with the aid of:

  1. Soil samples – sandy, clayey and loamy
  2. Funnel
  3. Water
  4. Measuring glass
  5. Filter paper
  6. Cotton wool
  7. Pots
  8. Maize grains

 

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. 

 

REFERENCE MATERIALS

  1. Scheme of Work
  2. 9 – Basic Education Curriculum
  3. Course Books
  4. All Relevant Materials
  5. Online Materials

 

 

CONTENT OF THE LESSON

 

INTRODUCTION

The process of soil formation is called weathering. Weathering is the breaking down of rocks into smaller (tiny) particles to form soil.

 

FORMATION OF SOIL

Soil formation is the break down of rocks into smaller particles to form soil. Rocks are parent materials through which soils are formed.

Soils are formed by the interaction of the following with the parent materials (rocks) –

  1. Rain
  2. Temperature
  3. Wind
  4. Man
  5. Animals

 

 

WEEK 4 – PROCESS/EFFECTS OF SOIL FORMATION 

RAIN 

Rainfall helps to wash down different particle from the rocks. The particle decompose and become soil. Also, rainfall on dried plants and dead animals helps to decay to form soil.

 

TEMPERATURE 

Temperature is the hotness or coldness of the atmosphere at a particular time. When the weather is hot, the rocks are expanded and contracted when weather is cold. During the expansion and contraction, small particles of rock fall to form soil.

 

WIND 

Just like the rain, the wind blows away pieces particles from the rock to form soil.

 

MAN

The activities of man such farming, building, construction, dipping, etc. break rocks into smaller particles.

 

ANIMALS 

The activities of different kind of animals such as digging holes, carrying dried plants and dead animals into the holes. When rainfall, the materials decay to form soil.

 

PLANTS 

When soil is formed, plants grow and their roots are deepen inside the soil. When these plants died, the leaves and roots inside the soil decay to form soil.

 

 

PRESENTATION

  • 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. Guides the pupils in discussing the agents of soil formation.
  3. Pupil’s Activities – Take active in part in discussing the agents of Soil formation.
  4. Demonstrates how man involved in breaking down of rock;
  5. Pupil’s Activities – List various activities of man that aids formation of rock.
  6. Give a board summary.
  7. Pupil’s Activities – Copy board summary.

 

 

CONCLUSION

  • To conclude the lesson for the week, the teacher revises the entire lesson and links it to the following week’s lesson.
  • Next Lesson – Process of Soil Formation

 

LESSON EVALUATION

Pupils to – 

 

WORK BOOK (WEEKLY ASSESSMENT) 

Attempt all the questions 

 

 

PART A

1. _________________ is the breaking down of rocks into smaller particles.

A. Weather

B. Weathering

C. Whether

 

2. _________________ is the soil parents materials.

A. Rock

B. Block

C. Break

 

3. _________________ is the top layer of the earth’s surface.

A. Rock

B. Sand

C. Soil

 

4. _________________ is the breaking down of rock by man, animals, plant’s roots and micro organisms.

A. Physical process

B. Biological process

C. Chemical process

 

5. _________________ is the breaking down of rock by water, wind, etc.

A. Physical process

B. Biological process

C. Chemical process

 

6. _________________ is the breaking down of rock by temperature change.

A. Physical process

B. Biological process

C. Chemical proces

 

 

PART B

 

7. Discuss the process of breaking down of rock.

________________________________________________________________

________________________________________________________________

 

List 3 factors of soil formation.

8. __________________________________

9. __________________________________

10. _________________________________

 

 

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