Chapter Name: Heat
Activity Name: Boiling of water in Heat
This experiment aims to observe and understand the process of boiling water and the changes in temperature during the process. Students will use a beaker of water placed on a burner and monitor the temperature using a thermometer at regular intervals.
- Beaker of water
Step by Step Procedure:
- Take a beaker and fill it with water.
- Place the beaker on the burner.
- Start heating the water on the burner.
- Keep a thermometer ready to measure the temperature of the water.
- Note the initial temperature of the water.
- Observe and note down the temperature reading of the thermometer every 2 minutes.
- Continue heating and monitoring the temperature until significant observations are made.
- Initially, the temperature of the water will be at room temperature.
- As the heating begins, the temperature of the water will start rising.
- The temperature will continue to rise continuously until it reaches 100°C.
- Once the water reaches 100°C, the temperature stops rising despite the continued supply of heat.
- At 100°C, the water starts to boil, and a lot of bubbling is observed at the surface of the water.
- Handle the burner carefully to avoid accidents.
- Use a suitable protective covering or gloves while handling hot objects.
- Keep a safe distance from the heated beaker to prevent burns.
- Do not touch the beaker directly while it is being heated.
Lesson Learnt from Experiment:
Through this experiment, students will learn that the temperature of water rises continuously when heated until it reaches its boiling point. Beyond the boiling point (100°C for water), the temperature remains constant despite the continued supply of heat. The experiment demonstrates the process of boiling and the importance of the boiling point for a substance.