Sink or Float Candies
Through observation, the students grasped that candies that are dense will sink to the bottom of the cup. The density of the candy, however, depends on what is inside the candy. Candies that have whipped ingredients like nougat, marshmallow, or malted milk will float because their air pockets make them less dense and therefore more buoyant. Candy that is solid chocolate or filled with peanut butter or caramel will sink because they are denser than the water into which they are dropped.