Contamination of Water – Meaning of Water Contamination | Ways of Contaminating Water | Sources of Water Contamination | Weekly Assessment Primary 3 (Basic 3) – Basic Science

BASIC SCIENCE

BASIC SCIENCE AND TECHNOLOGY

SECOND TERM

WEEK 5

PRIMARY 3

THEME – LEARNING ABOUT OUR ENVIRONMENT 

 PREVIOUS LESSON – Uses of Water to Human Beings, Plants and Animals Primary 3 (Basic 3)

 

TOPIC – WATER CONTAMINATION 

LEARNING AREA

1. Introductory Activities

2. Meaning of Water Contamination

3. Ways of Contaminating Water

4. Sources of Water Contamination

5. Lesson Evaluation and Weekly Assessment

 

PERFORMANCE OBJECTIVES

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

1. states the meaning of water contamination.

2. list various ways by which water can be contaminated.

 

ENTRY BEHAVIOUR

The pupils can identify fit and unfit water for any domestic or other uses.

INSTRUCTIONAL MATERIALS

The teacher will teach the lesson with the aid of:

1. Charts showing ways of contaminating water.

2. Cans or cups.

3. Water from taps, gutter, stream, etc.

4. Pre – class activities –

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

Scheme of Work

9 – Years Basic Education Curriculum

Course Book

All Relevant Material

Online Information

 

WRITING INSTRUCTIONS

Copy as I write or draw as I draw. This instruction should be given when you need the pupils to write or draw.

CONTENT OF THE LESSON  

LESSON 1 – INTRODUCTORY ACTIVITIES 

Teacher’s Activities – Use samples of water of different qualities (clean and dirty) to guide pupils to identify water that is unfit for drinking (check colour and odour).

Ask them to examine the chart showing various ways of contaminating water and discuss.

Pupil’s response – Response to the teacher’s instructions and discuss.

Teacher’s remark – The dirty water is unfit for drinking because it is contaminated. There are several ways in which water can be contaminated. Today, we are going to learn the meaning of water contamination and ways of contaminating water.

Lead the pupils to define water contamination based on their discussion and note their points on the board.

MEANING OF CONTAMINATION OF WATER 

Water contamination is water that are unsafe for drinking, cooking, washing, etc.

WAYS OF CONTAMINATING WATER

1. Defecating on water bodies.

2. Dumping of refuse and industrial wastes into water bodies.

3. Breaking of oil pipes near streams, riversides and farmlands.

LESSON 2 – SOURCES OF WATER CONTAMINATION

Water contamination comes from three primary sources:

1. Rainwater

2. Surface water

3. Groundwater

Read more – Water Quality Products – WQP Link

 

REVISION AND WEEKLY ASSESSMENT 

As stated in performance objectives or lesson evaluation. 

PRESENTATION

To deliver the lesson, the teacher adopts the following steps:

To introduce the lesson, the teacher revises the previous lesson. Based on this, he/she asks the pupils some questions;

1. Provides pupils with samples of water of different qualities (clean, dirty or muddy).

2. Uses simple activities to guide pupils to identify water that is unfit for drinking (check colour and odour).

3. Shows samples of contaminated water.

Pupil’s Activities – Observe and describe the displayed set of water samples.

4. Teacher’s/Pupil’s Discussion on source of water contamination.

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 – Second Term Basic Science and Technology Mid Term Test and Break Primary 3 (Basic 3)

LESSON EVALUATION 

Pupils to:

1. distinguish between good and bad water (colour and odour).

2. list 3 ways by which water can be contaminated.

WEEKLY ASSESSMENT

ATTEMPT ALL THE QUESTIONS

1. _____________ is water that are unsafe for drinking, cooking, washing, etc.

A. Water contamination

B. Water purification

C. Water substance

2. Tap water and well water are safe for drinking.

A. Yes, they are safe for drink.

B. No, they are not safe for drinking.

C. Tap water is safe but not all well water are safe for drinking.

3. Tap water and well water are unsafe for drinking.

A. Yes, they are safe for drink.

B. No, they are not safe for drinking.

C. Tap water is safe but not all well water are safe for drinking.

 

4. Tap water and well water are unsafe for cooking, bathing and washing.

A. Yes, they are safe.

B. No, they are not safe.

C. I don’t know.

5. Water Contamination is water that are _____________ for drinking, cooking, washing, etc.

A. Safe

B. Clean

C. Unsafe

6. Dumping of refuse and industrial wastes into water bodies can contaminate the water.

A. Sure

B. True

C. False

7. What is water contamination?

A. Water that is safe for drinking, cooking, bathing, etc.

B. Water that is hygiene.

C. Water that is unsafe for drinking, cooking, bathing, etc.

State 3 source of water contaminated water.

8. _____________

9. _____________

10. _____________