A scientist is interested in learning more about water’s phase change properties. The scientist decides to perform an experiment to determine the amount of time it would take to melt ice compared to the amount of time it would take for water to boil
Write a procedure for the experiment.
Procedure for the Experiment:
1. Gather all the necessary materials:
- Ice cubes
- Water
- Heat source (e.g., stove or Bunsen burner)
- Stopwatch or timer
- Thermometer
- Heat-resistant container or beaker
- Heat-resistant gloves or tongs
2. Set up the experiment area in a well-ventilated and safe location, such as a laboratory bench or kitchen counter.
3. Fill a heat-resistant container or beaker with a predetermined amount of water, ensuring it is level and stable.
4. Take the initial temperature of the water using a thermometer and record it.
5. Carefully place the container or beaker on the heat source (e.g., stove burner) and start the timer.
6. Observe the water closely and continue heating until it reaches its boiling point, indicated by the formation of bubbles and steam. Make sure the water is boiling consistently throughout the experiment.
7. As soon as the water starts boiling, stop the timer and record the elapsed time.
8. Turn off the heat source and allow the water to cool down naturally for a few minutes.
9. Place the predetermined number of ice cubes into another clean and heat-resistant container or beaker.
10. Fill the container with enough water to submerge the ice cubes completely.
11. Take the initial temperature of the ice-water mixture using a thermometer and record it.
12. Place the container with the ice cubes on the heat source, making sure the ice is exposed to the heat.
13. Start the timer as soon as you put the container on the heat source.
14. Observe the ice closely and wait for it to melt completely, indicated by the absence of any solid ice. Make sure the ice is melting consistently throughout the experiment.
15. Once all the ice has melted, stop the timer and record the elapsed time.
16. Analyze the data collected and compare the time taken for the water to boil with the time taken for the ice to melt.
17. Consider any other relevant factors such as the initial temperature of the water and ice, the heat source used, and any observations made during the experiment.
18. Repeat the experiment multiple times to ensure the accuracy and reliability of the results.
Note: Ensure that all necessary safety precautions are followed, such as using heat-resistant gloves or tongs when handling hot materials, and being cautious around the heat source.