If one flower is placed in tap water, the second in the water mixed with splenda sugar and the third one in sea salt then the flower that was placed in water with splenda sugar will last the longest fresh and alive because due to the process of photosynthesis which explains that a plant needs nutrients in order to stay alive.
The tools I will need are 3 roses, 2 spoonfuls of splenda sugar, 2 spoonfuls of sea salt, water, 3 cups, light, and 2 spoons. To collect my data I will use a notebook to write my observation in a table each week.
The data being collected will be qualitative because this experiment is not really about measurement it's more about the description