The hypothesis is that seventh graders who had consumed Gatorade would have a lower pulse rate during exercise.

You will need to obtain parental permission, prepare drinks for the subjects, have them drink the liquid being tested, wait 20-40 minutes, take the pulse rate of the subject for 15 seconds, have the subject do 8 inch step-ups for 4 minutes, and take the pulse rate again.

You will need a stopwatch, 40 cups, 20 human subjects, a data table, 5 liters of Gatorade and 5 liters of bottled water, a metronome, a step-up aerobics bench, a chair, and an empty classroom.

The results showed that the subjects who had consumed Gatorade had lower pulse rates during exercise than those who had consumed water. This suggests that Gatorade does give kids more energy.

This science project is interesting because it tests the effects of Gatorade vs. water on the pulse rate of seventh graders while exercising, which is something that many people are curious about.

Variations of this experiment could include testing the pulse rates of girls and boys separately, or having the subjects exercise for a longer period of time.