Energy Transformation Basic Science Primary 1 First Term Lesson Notes Week 6

Class: Primary 1

Subject: Basic Science

Topic: Explanation and Analysis of Energy Transformation

Sub-topic: Understanding Energy Change

Time: 45 minutes

Duration: 1 period/day

Period/Day: Monday

Instructional Materials:

• Pictures of energy transformation examples
• Simple diagrams
• Flashcards with images
• Whiteboard and markers

Entry Behaviour: Students should have basic knowledge of energy and be familiar with common energy sources like the sun and food.

Behavioural Objectives: By the end of this lesson, students should be able to:

1. Explain what energy transformation means.
2. Identify examples of energy transformation in everyday life.
3. Understand that energy can change from one form to another.

Previous Lesson: The previous lesson introduced students to the concept of energy and different sources of energy.

Instructional Procedure:

Energy is like magic that makes things happen. ✨ Let me explain:

1. Starting Energy: Imagine you have a toy car 🚗. When you push it, you give it energy. This energy makes the car move. 🔄
2. Change Happens: Now, the toy car is moving because of your energy. But guess what? The energy is changing! It’s changing from your push energy into car movement energy. 🚗💨
3. Different Forms: Energy can change into different forms. Like when you eat food, it gives you energy to play 🍎🏃. Food energy turns into play energy! ⚡
4. Examples: Think of a bouncing ball. You lift it up, giving it energy. When you let go, it bounces. Your lifting energy changed into bouncing energy! 🏀⬆️⬇️
5. Everyday Life: Energy transformation happens all around us. When the sun shines 🌞, it gives us light and warmth. Sun energy turns into light and heat energy! ☀️💡

So, energy transformation is like a cool magic trick that happens in our world every day. It’s how energy changes from one form to another to make things happen!

Examples of energy transformation:

1. Hydroelectric Dam: In a hydroelectric dam, the potential energy of water held behind the dam is transformed into kinetic energy as it flows down through turbines. The turbines, in turn, convert this kinetic energy into electrical energy. So, gravitational potential energy becomes electrical energy.
2. Battery-powered Toy: When you play with a battery-powered toy, the chemical energy stored in the battery is transformed into electrical energy. This electrical energy powers the toy’s motor, which then creates mechanical energy, making the toy move.
3. Muscle Movement: When you jump, run, or even just lift your arm, your muscles are at work. They transform the chemical energy stored in your body into mechanical energy that allows you to move. So, food energy becomes muscle movement energy
4. Burning Wood: When you burn a piece of wood in a campfire, you’re using chemical energy stored in the wood. As it burns, this chemical energy transforms into heat and light energy. So, you start with potential energy in the wood, and it becomes kinetic energy in the form of heat and light.
5. Eating Food: When you eat food like an apple 🍎, your body digests it. The chemical energy in the food is transformed into mechanical energy that helps you move and stay active. So, the energy from the apple becomes the energy you use to run, jump, and play.
6. Wind Turbines: Wind turbines use the kinetic energy of the wind to turn blades. These blades are connected to a generator, which transforms the kinetic energy of the moving blades into electrical energy. So, wind energy becomes electrical energy that powers homes and buildings.
7. Solar Panels: Solar panels capture sunlight ☀️, which is a form of radiant energy. The panels convert this radiant energy into electrical energy. This energy can then be used to light up homes or charge devices

These examples show how energy can change from one form to another in various everyday situations and processes. Understanding energy transformation helps us appreciate how energy is essential in our lives and the world around us. 🌍⚡

Evaluation

1. When you burn wood, it transforms into ________ and ________ energy.
a) heat, light
b) sound, water
c) food, air
d) wind, electricity

2. Eating food converts its ________ energy into the energy your body needs.
a) heat
b) chemical
c) wind
d) light

3. Wind turbines turn ________ energy into electrical energy.
a) mechanical
b) solar
c) chemical
d) magnetic

4. Solar panels change sunlight, a form of ________ energy, into electrical energy.
a) radiant
b) mechanical
c) sound
d) thermal

5. A hydroelectric dam converts the ________ energy of water into electrical energy.
a) mechanical
b) sound
c) chemical
d) gravitational potential

6. The chemical energy in a battery becomes ________ energy in a battery-powered toy.
a) thermal
b) mechanical
c) electrical
d) solar

7. When you lift a book, your muscles transform food energy into ________ energy.
a) electrical
b) light
c) mechanical
d) sound

8. Turning on a flashlight changes ________ energy into light energy.
a) electrical
b) magnetic
c) heat
d) wind

9. A car engine converts ________ energy from gasoline into kinetic energy for motion.
a) thermal
b) electrical
c) chemical
d) sound

10. The energy in food is often called ________ energy.
a) electrical
b) mechanical
c) chemical
d) thermal

11. Solar energy can be harnessed by using ________ panels.
a) wind
b) solar
c) hydroelectric
d) chemical

12. When you bounce a ball, your energy is transformed into ________ energy in the bouncing ball.
a) magnetic
b) sound
c) kinetic
d) electrical

13. A windmill transforms ________ energy from the wind into electrical energy.
a) mechanical
b) thermal
c) sound
d) chemical

14. Water evaporating from a puddle is an example of ________ energy transforming into ________ energy.
a) kinetic, electrical
b) chemical, thermal
c) solar, wind
d) potential, kinetic

15. When you turn on a fan, electrical energy changes into ________ energy that moves the air.
a) thermal
b) light
c) mechanical
d) sound

Step 1: Introduction (5 minutes)

• Greet the students and ask if they remember what energy is.
• Explain that today, we will learn about energy transformation, which is like a magic change that happens to energy.

Step 2: Content Presentation (15 minutes)

• Show pictures and diagrams of energy transformation examples:
  • Burning wood turns it into heat and light.
  • Eating food gives us energy to play.
  • Wind turns a windmill and makes electricity.
• Use simple language and ask students to describe what they see in the pictures.

Step 3: Discussion (15 minutes)

• Have a conversation about everyday examples of energy change:
  • “When you eat an apple, how does it give you energy?”
  • “What happens when the wind blows hard?”
  • “What do you feel when you touch a hot stove?”
• Encourage students to share their ideas and observations.

Summary / Conclusion (5 minutes)

• Summarize what students have learned: “Today, we talked about energy changing from one form to another. It’s like a magic trick!”
• Ask a few students to explain what they’ve learned to the class.

Evaluation (5 minutes)

• Have a class activity: Show pictures and ask students to name the energy transformations they see.
• Use simple questions like, “What happens when you eat food?”

Assessment / Class Activity:

• During the evaluation, assess how well students can identify and describe examples of energy transformation.
• Observe if students can explain how energy can change from one form to another