Height of Control: This "Height of Control" stock represents the height of the plant that we are measuring over a period of time. The units of this stock is centimeters.

Growing: This flow named "Growing" represents the growth of the plant that goes into the "Height of Control" stock. The units are centimeters per day.

Growth Rate: This flow named "Growth Rate" represents the rate at which the plant grows without a hormone stimulate. The units are centimeters per day.

Experimental Height: This "Height of Experiment" stock represents the height of the plant that is stimulated by a hormone that we are measuring over a period of tiem. The units of this stock is centimeters.

Growth of Experiment: This flow named "Growth of Experiment" represents the growth of the plant that is stimulated by the hormone that goes into the "Height of Experiment" stock. The units are centimeters per day.

This converter changes the amount of stuff going into "Flow out".

Growth Rate of Experiment: This flow named "Growth Rate of Experiment" represents the rate at which the experiment plant grows (it will be the same growth rate as the control plant) without a hormone stimulate. The units are centimeters per day.

Gibberellic Acid: This converter changes the rate of growth. It is dependent on the amount of gibberellic acid applied to the plant..