✅ Revised Learning Objectives (Class 4 Level)
By the end of this lesson, students will be able to:
1. Observe things around them carefully and find similarities & differences.
2. Group (classify) objects based on simple features like color, size, shape, or use.
3. Test simple ideas through small, safe activities.
4. Identify basic science tools (like a ruler, magnifying glass, thermometer).
5. Know simple safety rules while doing experiments.
6. Understand what measurement is and how it is used in daily life.
7. Explain why measurements are important in science.
Welcome, young explorers!
Today we start our first journey into the world of science.
Science is all about seeing, thinking, and finding out how things work!
Let’s begin!
—
🌟 1. Observing Like a Scientist
Everything in science starts with observation.
👀 What is observation?
Looking carefully at something and noticing small details.
Example:
What colour is the leaf?
Is the stone smooth or rough?
Is the bird big or small?
🧩 Quick Activity:
“Find 3 objects around you and note one thing special about each.”
—
🌟 2. Classifying (Grouping) Things
Scientists love to put things into groups.
✔ What is classification?
Putting things together based on similarities.
Examples:
All round things in one group
All red things in one group
All metal things in one group
🧩 Quick Activity:
“Group classroom objects into: soft, hard, rough, smooth.”
—
🌟 3. Testing Simple Ideas (Mini Experiments)
In science, we test ideas by trying them out.
✔ Example:
“Does sugar dissolve in water?”
Let’s test it!
1. Take water
2. Add a little sugar
3. Stir
If it disappears → It dissolves!
⚠ Safe and Simple Only
No fire. No chemicals. No sharp objects.
—
🌟 4. Science Tools for Class 4
Here are some simple tools young scientists use:
🔍 1. Magnifying Glass
Helps us see tiny things larger.
Schematic diagram: (Kids can draw a circle with a handle.)
📏 2. Ruler
Used to measure length.
Diagram: A straight line with number markings.
🌡 3. Thermometer
Used to measure temperature.
Diagram: A thin tube with a bulb at the bottom.
🕒 4. Clock
Used to measure time.
🧩 Quick Activity:
“Draw any one tool in your notebook.”
—
🌟 5. Safety Rules in Science
Even small experiments need simple rules.
✔ Do:
Listen to the teacher
Handle tools carefully
Keep water away from electric items
Wash hands after experiments
❌ Don’t:
Don’t taste chemicals
Don’t run in the lab
Don’t touch hot or sharp objects
Simple and safe.
—
🌟 6. What is Measurement?
✔ Simple Definition:
Measurement means finding out how big, long, hot, heavy, or fast something is.
Examples in daily life:
Measuring height
Measuring water in a bottle
Checking temperature when you have fever
Measuring time to complete homework
🧩 Quick Activity:
“Measure the length of your pencil with a ruler.”
—
🌟 7. Why Measurement is Important in Science
Without measurement:
We can’t compare things
We can’t record results
We can’t repeat experiments correctly
We can’t know how things change
Measurement helps scientists be accurate and correct.
—
🎉 Summary
Today you learned:
How to observe things carefully
How to classify objects
How to test simple ideas
Basic science tools
Safety rules
What measurement is
Why it is important
Congratulations!
You have completed Lesson 1: Scientific Learning.