John really likes the herb basil. He likes it so much he eats it faster than it grows in the 8 pots he has on his window-sill. John decided he needed to find a way to make the basil grow faster
because he is limited on space. He decided to design an experiment. John took eight seeds
and planted them in eight pots that all received equal amounts of sun and were all spaced 20
centimeters apart. Each day John gave each of the eight plants equal amounts of water using a
large graduated cylinder, depending on how dry the soil was. John then divided the eight
plants into four groups, A-D. For the two plants in Plant Group A, John only gave them water.
For the two plants in Plant Group B, John gave each plant a cup of Miracle-Gro solution mixed
at 25% less than the recommended concentration once a week in place of the water. For the
two plants in Plant Group C, John gave each plant a Miracle-Gro solution mixed exactly at the
recommended concentration once a week in place of water. For the two plants in Plant Group
D. John gave each plant a cup of Miracle-Gro solution mixed at 25% more than the
recommended concentration once a week in place of the water. After 30 day lehimmed
the height of each plant. The results were as follows: