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
Explain what the data would have to include to use it as evidence to support your hypothesis.
To use the data as evidence to support a hypothesis regarding the time it takes to melt ice compared to the time it takes for water to boil, the following data would need to be included:
1. Initial conditions: The starting temperature of both ice and water needs to be provided. This can be the same temperature or different temperatures depending on the hypothesis being tested.
2. Measurements of time: The scientist needs to precisely measure the time it takes for the ice to melt completely and the time it takes for the water to reach its boiling point. The measurements should be recorded in seconds or minutes, depending on the scale of the experiment.
3. Replicability: The experiment needs to be repeatable multiple times to ensure the consistency and accuracy of the results. Each measurement of time should be recorded for individual trials, and the average of the times can be calculated to present more reliable data.
4. Comparison: The data should provide a clear and direct comparison between the time it takes to melt ice and the time it takes for water to boil. This can be done by presenting the individual time measurements side by side or by calculating a ratio between the two times (e.g., time to melt ice / time for water to boil).
By including these data points, a scientist can present evidence that supports or challenges their hypothesis regarding the different time durations of water's phase changes.