BASIC SCIENCE E-NOTE Class: JSS 1 Week: 3 | Pollution 

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BASIC SCIENCE LESSON NOTE

Class: JSS 1
Week: 3
Topic: POLLUTION (WATER AND LAND POLLUTION)
Date: ___________________________

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DOUBLE PERIOD LESSON (Main Lesson)

By the end of the lesson, students should be able to:

1. Explain the meaning of pollution in their own words

2. Identify and describe the major types of pollution

3. State and justify the causes of water and land pollution

4. Carry out a simple experiment to purify polluted water

5. Mention the effects of water and land pollution on humans and the environment

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KEY VOCABULARY WORDS:

Pollution, Contamination, Water pollution, Land pollution, Waste, Refuse, Sewage, Filtration, Sedimentation, Environment, Purification

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RESOURCES AND MATERIALS:

Dirty water (mixed with sand), clean bottle, filter paper or clean cloth, funnel, bowl, charcoal/sand, pictures of polluted water and land, chalkboard

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BUILDING BACKGROUND:

The teacher asks students:

• Have you ever seen dirty water in a gutter or river?

• Have you seen refuse dumped on the roadside?

• Is it good for our health and the environment?

Teachers link their answers to the concept of pollution.

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CONTENT

Meaning of Pollution

Pollution is the act of making the environment dirty or unsafe by introducing harmful substances, such as waste, smoke, chemicals, or contaminated water.

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Types of Pollution

1. Water Pollution: When rivers, streams, oceans, or wells are made dirty by waste, oil, chemicals, or sewage.

2. Land Pollution: When land is made dirty by refuse, plastics, metals, and harmful chemicals.

3. Air Pollution (brief mention)

4. Noise Pollution (brief mention)

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Causes of Water Pollution

• Throwing refuse into rivers and streams

• Oil spillage

• Sewage disposal into water

• Washing and bathing in rivers

• Industrial waste

Causes of Land Pollution

• Dumping refuse indiscriminately

• Use of chemicals and pesticides

• Plastic waste

• Industrial waste

• Mining activities

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Effects of Water and Land Pollution

• Spread of diseases (cholera, typhoid)

• Death of plants and animals

• Bad smell and ugly environment

• Contaminated drinking water

• Flooding due to blocked drainage

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EXPERIMENT: SIMPLE PURIFICATION OF POLLUTED WATER

Aim: To purify dirty water
Materials: Dirty water, bottle, cloth/filter paper, sand, charcoal
Procedure:

1. Cut a bottle into two parts

2. Place charcoal and sand inside the top part

3. Pour dirty water through it

4. Observe cleaner water coming out

Conclusion: Filtration helps to remove dirt from polluted water.

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WRAP UP & ASSESSMENT:

Teacher asks:

1. What is pollution?

2. Mention two types of pollution.

3. State two causes of water pollution.

4. Why is pollution dangerous?

Students respond orally and in writing.

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ASSIGNMENT:

1. Write five causes of land pollution

2. Draw a polluted river and a clean river

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HOD/VP’S COMMENT & ENDORSEMENT:

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SINGLE PERIOD LESSON (Revision / Short Lesson)

By the end of the lesson, students should be able to:

1. Define pollution

2. Identify water and land pollution

3. Mention two causes of each

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KEY VOCABULARY WORDS:

Pollution, Water pollution, Land pollution, Waste, Environment

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RESOURCES AND MATERIALS:

Pictures of polluted water and land, chalkboard

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BUILDING BACKGROUND:

The teacher revises the previous lesson by asking students what pollution means and where it happens.

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CONTENT

Meaning of Pollution

Pollution is the act of making our environment dirty and unsafe.

Types of Pollution

• Water pollution

• Land pollution

Causes

Water: Refuse in rivers, oil spillage
Land: Dumping refuse, plastic waste

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WRAP UP & ASSESSMENT:

1. Define pollution

2. Mention one cause of water pollution

3. Mention one cause of land pollution

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ASSIGNMENT:

List two ways pollution can be prevented.

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HOD/VP’S COMMENT & ENDORSEMENT: