Experiment #1: Plants
A certain plant has white flower petals and it usually grows in soil that is slightly basic.
Sometimes the plant produces flowers with red petals. A company that sells the plant
wants to know if soil pH affects the color of the petals in this plant.

Design a controlled experiment to determine if soil pH affects petal color. In your
experimental design be sure to:
• state the hypothesis to be tested in the experiment
• state one way the control group will be treated differently from the experimental group
• identify two factors that must be kept the same in both the control group and the
experimental group
• identify the dependent variable in the experiment
• state one result of the experiment that would support the hypothesis