Testing Plant Growth with Fertilizer
Day Plant Height (cm) Group A (Water Only) Plant Height (cm) Group B (Water and Fertilizer)
1 2.0 2.0
2 2.2 2.3
3 2.3 2.8
4 2.5 3.2
5 2.6 3.8
For an investigation, Mr. Rose planted two groups of plants (Groups A and B). Both groups received the same amounts of water and sunlight and were planted in the same type of soil. Group B received fertilizer while Group A did not. He recorded the average growth of each group for five days.
Mr. Rose recorded several predictions about his investigation. Which of his predictions was correct, based on the data shown?
