Lesson Note On Water – Meaning Of Water, Qualities Of Good Water, Difference Between Water & Other Liquids (Basic 4)

• Class: Primary 4
• Term: 2nd Term
• Week: 6
• Age: 9 years
• Duration: 40 minutes
• Subject: Basic Science Technology
• Curriculum Theme: Basic Science
• Topic: Water
• Content: Meaning of Water, Qualities of Good Water, Difference Between Water and other liquids

Specific Objectives:

• Cognitive Domain: Pupils should be able to define water and list its qualities.
• Affective Domain: Pupils should develop an appreciation for the importance of water.
• Psychomotor Domain: Pupils should be able to identify good water through observation.
• Social Domain: Pupils should be able to discuss the role of water in their daily lives.

Reference Materials:

• 9 – Years Basic Education Curriculum
• Abuja Educational Resource Centre Scheme of Work
• NAPPS National Unified Scheme of Work
• Online Information
• Textbooks

Instructional Materials:

• Charts showing the water cycle
• Samples of different types of water
• Diagrams of water sources

Rationale for the Lesson:
Understanding water’s importance and characteristics is essential for developing awareness about its conservation and responsible usage in daily life.

Prerequisite/Previous Knowledge:
Pupils are expected to have basic knowledge about water from previous classes.

INSTRUCTIONAL PROCEDURES:

Content Development: Water – Meaning And Qualities Of Good Water

Classroom Note:

What Is Water?

Water is a clear, colorless, odorless, and tasteless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms.

Qualities Of Good Water

1. It should be clear and colorless.
2. It must be free from harmful chemicals.
3. It should have no unpleasant odor or taste.
4. It must be free from pathogenic (disease-causing) organisms.
5. It should contain essential minerals for health.

Differences Between Water and Other Liquids

1. Taste and Smell: Water is tasteless and odorless, while many other liquids like juice or soda have distinct tastes and smells.
2. Boiling and Freezing Points: Water has a specific boiling point (100°C) and freezing point (0°C), which can be different from other liquids.
3. Chemical Composition: Water is a simple molecule consisting of two hydrogen atoms and one oxygen atom. Other liquids may have more complex chemical structures.
4. Solubility: Water is often called the “universal solvent” because many substances dissolve in it. Other liquids may not dissolve substances as well as water does.
5. Density: Water has a unique density, which changes less with temperature fluctuations compared to other liquids. For example, water expands when it freezes, unlike most liquids which contract.

Importance Of Water:

1. Hydration and Health: Water is crucial for staying hydrated. It helps in maintaining body temperature, and is vital for the functioning of organs and cells.
2. Aid in Digestion: Water assists in the digestion process. It helps break down food so the body can absorb the nutrients.
3. Transportation of Nutrients: Water acts as a carrier, transporting essential nutrients and oxygen to different parts of the body.
4. Elimination of Waste: Water helps in the removal of waste products from the body through urination, perspiration, and bowel movements.
5. Regulating Body Temperature: Water helps regulate the body’s temperature through sweating and respiration.

Evaluation Questions:

1. What is water?
2. Name three qualities of good water.
3. How is water different from other liquids?

Note to Teachers:
Customize the lesson content, teaching methods, and pupil activities to suit your teaching style, curriculum, and available resources.