Waste and Waste Disposal: Meaning, Types of Waste, Constituents and Effects of Waste Primary 5 (Basic 5) First Term Week 6 Basic Science and Technology

WASTE AND WASTE DISPOSAL: MEANING AND TYPES OF WASTE, WASTE CONSTITUTES AND EFFECTS OF WASTE PRIMARY 5 (BASIC 5) FIRST TERM WEEK 6 BASIC SCIENCE AND TECHNOLOGY

BASIC SCIENCE AND TECHNOLOGY

FIRST TERM

WEEK 6

PRIMARY 5 (BASIC 5)

THEME – LEARNING ABOUT OUR ENVIRONMENT

PREVIOUS LESSON – Land and Noise Pollution: Meaning, Sources, Effects and Control of Land and Noise Pollution Primary 5 (Basic 5) First Term Week 5 Basic Science and Technology

TOPIC – WASTE

LEARNING AREA

1. Introduction

2. Meaning and Types of Waste

3. Meaning and Examples of Waste Constituents

4. Weekly Assessment: Test Questions and Answers

5. Summary

LEARNING OBJECTIVES

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

1. Explain the meaning of waste.

2. Mention types of waste.

3. Identify waste constituents.

4. State the effects of waste in the environment.

ENTRY BEHAVIOUR

Pupils have previously learned about land and noise pollution and how improper waste disposal can make the environment dirty and unsafe.

This lesson builds on that knowledge by helping pupils understand what waste is, the different types of waste, and how waste affects the environment when not properly disposed of.

INSTRUCTIONAL MATERIALS

The teacher will teach the lesson with the aid of:

1. Waste materials (paper, plastic, bottle, food waste)

2. Pictures of waste dumps

3. Charts showing types of waste

4. Blackboard/whiteboard

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 – Years Basic Education Curriculum

3. Course Book

4. All Relevant Material

5. Online Information

CONTENT OF THE LESSON

INTRODUCTION

Every day, people use different materials such as food, paper, plastics, and cans. After using them, some of these materials are no longer needed and are thrown away.

These unwanted materials are called waste. If waste is not properly managed, it can make the environment dirty and unhealthy.

In this lesson, pupils will learn about the meaning of waste, types of waste, waste constituents, and the effects of waste on the environment.

LESSON 1 – MEANING OF WASTE

Waste refers to unwanted or useless materials that are no longer needed and are thrown away.

TYPES OF WASTE

1. Biodegradable Waste

Biodegradable waste is waste that can decay or rot naturally and be broken down by microorganisms.

Examples:

Food remains

Vegetable peels

Leaves

Paper

Animal waste

2. Non-Biodegradable Waste

Non-biodegradable waste is waste that cannot decay easily or break down naturally.

Examples:

Plastics

Glass

Metals

Nylon bags

Rubber materials

Biodegradable waste can decay naturally, while non-biodegradable waste cannot decay easily and remains in the environment for a long time, causing pollution if not properly disposed of.

LESSON 2 – WASTE CONSTITUENTS

Waste constituents are the different materials that make up waste in the environment.

Examples of Waste Constituents

Waste is made up of different materials such as:

Food remains

Paper

Plastics

Glass

Metals

Cloth

Wood

Rubber

Leaves

Bones

Waste is made up of different materials called waste constituents. These include food remains, plastics, paper, glass, metals, and other materials that are thrown away after use.

LESSON 3 – EFFECTS OF WASTE ON THE ENVIRONMENT

1. Causes unpleasant smell

2. Leads to diseases

3. Pollutes land and water

4. Attracts flies and rats

5. Blocks drainage systems and causes flooding

WEEKLY ASSESSMENT: TEST QUESTIONS AND ANSWERS/ASSIGNMENT

A. Answer the Questions

1. What is waste?

2. Mention two types of waste.

3. Give three examples of biodegradable waste.

4. Give three examples of non-biodegradable waste.

5. What are waste constituents?

B. Fill in the Blanks

6. Waste is unwanted ______ materials.

7. ______ waste can decay naturally.

8. Plastics are examples of ______ waste.

9. Waste materials should be properly ______.

10. Glass and metals are examples of ______ waste.

C. True or False

12. Waste can make the environment dirty. ______

13. Biodegradable waste cannot decay. ______

14. Non-biodegradable waste stays in the environment for a long time. ______

15. Food remains is a type of biodegradable waste. ______

15. Proper waste disposal helps to reduce pollution. ______

D. Match the Following

16. Waste → A. Can decay naturally

17. Biodegradable waste → B. Cannot decay easily

18. Non-biodegradable waste → C. Unwanted materials

19. Plastics → D. Pollution material

20. Food remains → E. Organic waste

ANSWER KEYS

1. Waste is unwanted or useless materials.

2. Biodegradable and non-biodegradable waste.

3. Food remains, leaves, paper (any three).

4. Plastics, glass, metals (any three).

5. Different materials that make up waste.

6. unwanted

7. Biodegradable

8. non-biodegradable

9. disposed

10. non-biodegradable

11. True

12. False

13. True

14. True

15. True

16. C. Unwanted materials

17. A. Can decay naturally

18. B. Cannot decay easily

19. D. Pollution material

20. E. Organic waste

SUMMARY

In this lesson, pupils learned that waste refers to unwanted or useless materials that are thrown away after use.

They also learned that waste can be classified into biodegradable waste, which can decay naturally (such as food remains, leaves, and paper), and non-biodegradable waste, which cannot decay easily (such as plastics, glass, and metals).

Pupils further learned that waste constituents are the different materials that make up waste, such as food remains, paper, plastics, glass, metals, cloth, and wood.

Finally, they understood that waste can cause bad smell, diseases, pollution, flooding, and environmental damage if not properly managed.

PRESENTATION

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

1. The teacher displays different waste materials such as paper, plastics, and food remains.

Pupils’ Activities: Pupils observe and identify the materials.

2. The teacher asks pupils to mention things they throw away at home or school.

Pupils’ Activities: Pupils respond based on their experiences.

3. The teacher introduces the topic: Waste and Waste Disposal.

Pupils’ Activities: Pupils repeat the topic.

4. The teacher explains the meaning of waste.

Pupils’ Activities: Pupils listen and give examples.

5. The teacher explains types of waste (biodegradable and non-biodegradable).

Pupils’ Activities: Pupils identify examples of each type.

6. The teacher explains waste constituents using real objects or pictures.

Pupils’ Activities: Pupils mention different waste materials.

7. The teacher discusses the effects of waste on the environment.

Pupils’ Activities: Pupils participate in discussion.

8. The teacher explains the importance of proper waste disposal.

Pupils’ Activities: Pupils suggest ways of disposing waste properly.

9. The teacher guides pupils to sort waste into biodegradable and non-biodegradable.

Pupils’ Activities: Pupils participate in group activity.

10. The teacher summarizes the lesson and asks oral questions.

Pupils’ Activities: Pupils answer questions and take notes.

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

LESSON EVALUATION

Teacher asks pupils,