Experiment 1 A student tested to see if sunflower growth was affected by the hardness of the soil. She used control and experimental groups. She repeated her experiment several times and each time fou?

the same results, indicating a consistent effect of soil hardness on sunflower growth. The control group had soil of standard hardness, while the experimental group had varying hardness levels. Her findings suggested that soil hardness significantly influences sunflower growth, leading her to conclude that optimal soil conditions are crucial for healthy plant development. Further research could explore the underlying mechanisms behind this relationship.