Final answer:
The independent variable is the type of drink consumed, the dependent variable is hydration level, the control group consumes water, the experimental group consumes Gatorade, and the three constants are the number of games, participants, and hydration testing method.
Step-by-step explanation:
The independent variable in the experiment is the type of drink (water or Gatorade) consumed during the games. The dependent variable is the level of hydration. The control group is the group that consumes water during the games, while the experimental group is the group that consumes Gatorade.
The three constants in the experiment are: the number of games (6), the participants (members of the RRHS football team), and the method of testing hydration levels (e.g. measuring urine color or using a hydration monitor).
Learn more about Experiment Variables