PERCOBAAN PERUBAHAN ENERGI MEMBUAT KINCIR LAMPION / TEMA 2 KELAS 4

Introduction

In this tutorial, we will explore how to create a lantern wheel (Kincir Lampion) as part of a science experiment focusing on energy transfer, suitable for fourth-grade students. This hands-on activity demonstrates the movement of heat energy and engages students in practical learning.

Step 1: Gather Materials

To begin your lantern wheel project, you'll need to collect the following materials:

• Cardboard: For creating the structure of the lantern wheel.
• Plastic Cups: These will act as the lanterns.
• String: To hang the lanterns from the wheel.
• Scissors: For cutting the cardboard.
• Tape or Glue: To assemble the components.
• A Candle or a Light Source: To provide heat energy.
• Markers or Paint: For decorating the lanterns.

Practical Tip: Ensure that you have a safe workspace, especially when working with candles.

Step 2: Construct the Lantern Wheel

Follow these steps to assemble the lantern wheel:

1. Cut the Cardboard:

   • Cut a large circle out of the cardboard. This will be the base of your wheel.
   • Cut a smaller circle in the center for the axle.

2. Prepare the Lanterns:

   • Take the plastic cups and decorate them using markers or paint.
   • Make small holes at the top of each cup to thread the string through.

3. Attach the Lanterns:

   • Use the string to hang the decorated cups around the edge of the cardboard wheel.
   • Ensure they are evenly spaced for balance.

4. Create the Axle:

   • Use a stick or a sturdy straw as the axle and insert it through the center hole of the wheel.

Common Pitfall to Avoid: Ensure the wheel can rotate freely by not making the axle too tight.

Step 3: Set Up the Heat Source

Prepare to demonstrate the energy transfer:

1. Position the Wheel:

   • Place the lantern wheel in an open area where it can rotate freely.

2. Light the Candle:

   • Carefully light the candle and position it below the center of the wheel.
   • Make sure the flame is at a safe distance from the plastic cups.

3. Observe the Effect:

   • Watch how the heat from the candle causes the air to rise, creating movement in the wheel.

Practical Tip: Use a small fan to create additional air movement that enhances the wheel's spin.

Step 4: Discuss the Science

After the experiment, engage in a discussion about the energy transfer observed:

• Explain Heat Transfer: Discuss how heat energy from the candle moves to the air and then to the wheel.
• Connect to Real-World Applications: Talk about how energy transfer is important in everyday life, such as in weather patterns or heating systems.

Conclusion

Creating a lantern wheel is an enjoyable and educational way to understand energy transfer. By following these steps, students can engage in hands-on learning while exploring scientific concepts. After this project, consider expanding the discussion to related topics like renewable energy sources or the physics behind wind turbines. Happy experimenting!