Riya noticed that ice cubes kept in a steel bowl melted faster than those kept in a plastic bowl. She wanted to know why this happened. She placed equal-sized ice cubes in both bowls under the same conditions and observed the time taken for them to melt.
What observation would help Riya reach a conclusion?
Model Answer
The key observation would be the precise time taken for the ice cubes in each bowl (steel and plastic) to completely melt. Comparing these melting times would allow Riya to draw a conclusion.
Explanation
Riya would need to observe and compare the precise time taken for the ice cubes in each bowl to completely melt.