John had seen people sprinkle salt on ice in the winter. The salt appeared to melt the ice. He decided to sprinkle salt on a larger block of ice. Then he added food coloring so he better could see the results. How did creativity help John in this experiment? A. It helped him use materials in a new way to help him gather data. B. It helped him reason through the results of his experiments. C. It helped him follow the steps of the procedure precisely. D. It helped him remember something from his past.

The correct answer is A.  It helped him use materials in a new way to help him gather data.

Explanation:

The use of food coloring in this experiment makes it easier to observe how salt affects ice and if this helps ice to melt. This implies by adding food coloring John can better observe the phenomenon he is studying and gather precisely data about this phenomenon, which would also help him to draw accurate conclusions. In this context, the use of food coloring shows creativity because he is using this material as an alternative way and this use would help him in the stage of gathering data (option A), which is the stage that follows after implementing experiments.

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.