Question

a scientist investigated a closed system to examine how thermal energy transfers over time. the data collected is shown in the table.

time (minute)	temperature (°f)
10	81
20	84
30	87
40	91

based on this data, which investigation plan best matches the experiment that was conducted?
recording the boiling point of water under various environmental conditions to observe changes
testing the effect of insulation on how well liquids retain heat within a closed system
observing how water temperature increases when exposed to a constant heat source over time

Explanation:

The table shows temperature increasing over time in a closed - system. The first option is about boiling point under different environmental conditions which is not indicated here. The second option about insulation effect is not evident from the data. The third option of observing water temperature increase over time when exposed to a constant heat source best matches the data as the temperature is rising steadily with time in a closed - system.

Answer:

Observing how water temperature increases when exposed to a constant heat source over time