Meaning, Properties and Uses of Air Basic Science Primary 2 Third Term Lesson Notes Week 5

Discover the meaning, properties, and uses of air in this lesson. Learn about the gases in air and how it helps us breathe, feel the wind, and fly kites!

Subject: Basic Science

Class: Primary 2

Term: Third Term

Week: 5

Topic: Air – Existence of Air

Sub-topic: Meaning, Properties, and Uses of Air

Duration: 60 minutes

Behavioural Objectives:

• By the end of the lesson, pupils should be able to:
  • Say the meaning of air.
  • Identify the gases of air.
  • Demonstrate the air in nature.
  • Explain the uses of air.

Key Words: Air, gases, wind, oxygen, nitrogen, carbon dioxide

Entry Behaviour:

• Pupils have heard about air and may know it helps them breathe.

Learning Resources and Materials:

• Balloons, paper fans, toy planes, pictures of nature (trees, sky, wind).

Building Background / Connection to Prior Knowledge:

• Review the topic of colours and how different objects use air for flying (birds, kites, and planes).

Embedded Core Skills:

• Observation, discussion, critical thinking.

Reference Books:

• Lagos State Scheme of Work.

Instructional Materials:

• Balloons, paper fans, toy planes, pictures of nature, chart showing air composition.

Content:

• Explanation of air, its existence, properties, and uses.

Hello, everyone! Today, we’re going to learn about air. Let’s talk about what it is, its properties, and how we use it.

1. Meaning of Air:

• Air is all around us. It’s what we breathe in and out. 🌬️
• We can’t see air, but we can feel it when the wind blows.

2. Gases in Air:

• Air is made up of different gases:
  • Oxygen: This gas helps us breathe. 🌳
  • Nitrogen: This gas is the most common in air.
  • Carbon Dioxide: Plants use this gas to grow. 🌱

3. Air in Nature:

• Air moves in nature as wind. 🍃
• Wind can be gentle or strong.
• Birds use air to fly. 🕊️

4. Uses of Air:

• Breathing: We need air to breathe and stay alive. 💨
• Flying: Air helps birds, planes, and kites fly. 🛫
• Cooling: Fans blow air to keep us cool. 🌀
• Making sounds: Wind makes sounds in trees or wind chimes. 🎐

Air is very important for us and all living things. It helps us breathe and keeps our world full of life! 😊

Class Activity Discussion :

1. What is air?
   • Air is a mixture of gases that surrounds us.
2. Can we see air?
   • No, air is invisible.
3. What are the main gases in air?
   • Oxygen and nitrogen are the main gases.
4. Why do we need oxygen?
   • We need oxygen to breathe and stay alive.
5. How does air help plants?
   • Plants use carbon dioxide from the air to grow.
6. What is wind?
   • Wind is moving air.
7. How does wind feel?
   • Wind can feel gentle or strong, and it can be cool or warm.
8. How do birds use air?
   • Birds use air to fly.
9. What helps planes fly?
   • Planes fly because of the air and their wings.
10. How do fans help us?
    • Fans blow air to keep us cool.
11. What sound does wind make?
    • Wind can make a whistling sound.
12. How can you feel air?
    • We can feel air when the wind blows against our skin.
13. What happens if there is no air?
    • We wouldn’t be able to breathe or hear sounds.
14. How do kites fly?
    • Kites fly because the wind lifts them up.
15. Why is air important for us?
    • Air is important because it helps us breathe, fly, and stay cool.

Evaluation :

1. Air is a mixture of ______. a. water b. sand c. gases d. metals
2. We breathe in ______. a. food b. oxygen c. water d. milk
3. ______ is the most common gas in air. a. Oxygen b. Nitrogen c. Carbon dioxide d. Helium
4. Plants use ______ from the air to grow. a. oxygen b. helium c. water d. carbon dioxide
5. Wind is moving ______. a. water b. sand c. air d. leaves
6. Birds use air to ______. a. swim b. fly c. crawl d. hop
7. Fans help us stay cool by blowing ______. a. air b. water c. food d. leaves
8. Planes use air to ______. a. drive b. walk c. swim d. fly
9. Kites fly because of the ______. a. water b. wind c. sun d. rain
10. Air is important for ______. a. hearing b. breathing c. playing d. eating
11. When air moves fast, it is called ______. a. rain b. sun c. wind d. snow
12. Air helps us hear because it carries ______. a. sounds b. light c. clouds d. stars
13. Wind can move things like ______. a. cars b. buildings c. kites d. mountains
14. Air is all around us, but we ______ see it. a. can b. cannot c. sometimes d. usually
15. We can feel air when it ______. a. stops b. moves c. jumps d. freezes

Presentation:

Step 1: The teacher revises the previous topic, which was about colours.

• Ask pupils to recall different colours and their uses in everyday life.
• Uses of Colours Basic Science Primary 2 Third Term Lesson Notes Week 4

Step 2: The teacher introduces the new topic of air, its properties, and uses.

• Explain that air is a mixture of gases around us that we cannot see.
• Introduce the main gases in air: oxygen, nitrogen, and carbon dioxide.
• Discuss how we can feel air when the wind blows.

Step 3: The teacher allows the pupils to give their own contributions and corrects them when and where necessary.

• Encourage pupils to describe how they feel air in different ways, such as when blowing balloons or using a fan.
• Demonstrate the properties of air using balloons, toy planes, and paper fans.
• Discuss the uses of air, such as breathing, flying, and carrying sounds.

Teacher’s Activities:

• Explain the meaning of air using simple terms and examples.
• Use materials like balloons and fans to demonstrate air.
• Guide pupils in discussing the uses and importance of air.

Learners’ Activities:

• Listen to the teacher’s explanations and observe the demonstrations.
• Ask questions about air and its uses.
• Participate in discussions about the uses of air.

Assessment:

• The teacher asks ten evaluation questions to check understanding.

Evaluation Questions:

1. What is air?
2. Can we see air?
3. What is the most important gas in air for us to breathe?
4. What gas do plants use from the air?
5. How does wind feel?
6. What does air help us do?
7. How do balloons show there is air?
8. What happens if there is no air?
9. What are some uses of air?
10. Why is air important for living things?

Conclusion:

• The teacher goes around to check pupils’ answers and understanding.
• Provides feedback and corrects any mistakes.
• Praises pupils for their participation and encourages them to observe air around them and think about its uses.