2nd Term Week 1 Basic science Lesson Note: Water (Part 2)

Week 1: Water (Part 2)

💡 Teacher's Overview & Guide

• Subject: Basic Science and Technology
• Class: Primary 2
• Term: Second Term, Week 1
• Duration: 40 Minutes
• Instructional Materials: Ice cubes in a small bowl, a thermos with hot water showing gentle steam, simple chart of the water cycle.
• Textbook Guide: Refer to the chapter on "States of Water" in the approved Primary 2 textbook.

Teacher's Note: SAFETY FIRST: Hot water and steam demonstrations must strictly be performed by the teacher at a safe distance from pupils.

Behavioral Objectives

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

1. Identify the three states of water: liquid, solid, and gas.
2. Explain simple processes like freezing, melting, and evaporation.
3. Describe the simple steps of the water cycle.

Presentation Steps

1. Introduction: Review Week 10 of First Term (uses of liquid water). Ask: "Have you ever seen water turned hard like a stone?"
2. The Three States of Water:
   • Liquid: Drinking water that flows.
   • Solid (Ice): Liquid water that becomes solid when very cold (in a freezer).
   • Gas (Steam/Vapor): Water that turns into steam when boiled very hot.
3. Changes in Form: Demonstrate ice melting in a bowl under warm air. Explain that hot sun causes evaporation (turning water to steam).
4. Simple Water Cycle: Explain that rain falls from clouds, fills rivers, gets dried up by the sun into steam, climbs to the sky, and forms rain again.

📝 Short Board Note for Pupils

WEEK 1
TOPIC: WATER (PART 2) - STATES OF WATER

1. Water exists in three (3) states:

• Liquid: Normal water we drink and wash with.
• Solid: Ice blocks formed when water is very cold.
• Gas: Steam or water vapor formed when water gets boiled hot.

2. Changes in Water:

• Water becomes ice when frozen.
• Ice becomes liquid water when warmed (Melting).
• Water becomes steam when boiled hot (Evaporation).

3. Simple Water Cycle: Rain falls $\rightarrow$ Sun warms the ground water $\rightarrow$ Water rises as steam $\rightarrow$ Clouds make rain fall again.

Evaluation & Assessment

• What are the three states of water?
• What happens to an ice cube when you leave it out in the hot sun?
• Where does rain come from in the water cycle?