Consider your "sample size.
For the purposes of this experiment, we might ignore location-specific exemptions, like how some states allow electric vehicles to drive in the carpool lane regardless of the number of passengers. If you are doing an experiment that involves testing or surveying different groups, you won't need to repeat the experiment three times, but you will need to test or survey a sufficient number of participants to insure that your results are reliable.
Analyze Data: Look at the time it took for each container of water to freeze. Communicate Results: Report your findings in the form of a written report as an oral presentation.
If the results of the experiment supported your hypothesis, it still does not mean that it is definitely proven true, since something besides the hypothesis may have been behind the results.
For example, if you are growing plants, you can put three identical plants or seeds in three separate pots and that would count as three trials.
You should be able to write the research question in a simple sentence. For the purposes of this experiment, you might decide on a time frame of three weeks.