. Keith hypothesizes that if he plants a rose bush in the sun, it will grow twice as fast as a rose bush planted in the shade. Keith makes the following plan for his experiment:
Plant two rose bushes of the same age. Place one in a shady area and one in a sunny area.
Water one of the bushes three times a week
Apply fertilizer to the other bush three times a week
Measure the bushes' growth weekly
Report the results