Variables
In this experiment I hope to learn if caffeine really does effect plant growth. In my experiment the independent variable will be the caffeinated substance that's used as a substitute in the place of water to make the plants grow. The dependent variable is how much the plant grows every day. The purpose of this experiment is to determine if the rumors of caffeine helping plant growth are true or not. People like caffeine because it helps them stay awake, so maybe it will help plants grow in similar effects of that on a human.