By using Alka-Seltzer and different temperatures of water, you can determine the effect of the water temperature on the chemical reaction of the tablet. The Science Buddies project ideas are set up consistently beginning with an abstract, objective, and introduction, followed by a section on terms, concepts, and questions, bibliography, list of materials and equipment, experimental procedure, suggestions on how to vary the experiment, plus a focus on the sort of careers this experiment might relate to.