(2B40.16) Density Soda Cans
Normal Dr. Pepper has close to 40 grams of sugar while Diet Dr. Pepper has 0. This allows Diet Dr. Pepper to float in water, while regular Dr. Pepper sinks to the bottom. Adding salt to the water will increase its density and allow both the Dr. Pepper and Diet Dr. Pepper to float at the surface. This is a great way to demonstrate density and give your class the health PSA.