Question

a student conducts an experiment to determine how the temperature of water affects the time for salt to dissolve in 100 ml of water. the student makes one measurement for each temperature. what is one way that the student could improve the experiment? perform multiple trials for each measurement instead of just one use a different type of salt for each temperature of water use a different timer for each temperature of water perform one trial for each measurement but use a different volume of water for each test

Explanation:

In scientific experiments, multiple trials reduce random errors and increase the reliability of results. Changing the type of salt, timer, or volume of water would introduce more variables and complicate the experiment, while multiple trials for each measurement would improve it.

Answer:

perform multiple trials for each measurement instead of just one