Jane told jill that the name sunflower comes from the fact that sunflowers follow the sun in the sky through out the day. jane said that sunflowers actually turn around on their stems to find the sun. to test this idea, jane and jill designed an experiment. they grew a pot of sunflowers outside in natural sunlight, one pot in the house near, but not directly in front of a window, and the final pot inside the house, away from all windows. the girls charted the direction of the sunflower heads throughout the day. all other growing conditions were the same: soil, water, pot size. the girls could not regulate the outdoor temperature, but since it was spring, the day and night temperatures were pretty close to the indoor temperature. which is an appropriate hypothesis for this experiment? a) sunflowers will only grow in natural light.

b) sunflowers grown indoors will bend toward a source of natural light.

c) sunflower heads turn to follow the location of the sun, both indoors and out.

d) sunflowers grown away from natural light will not be as tall as sunflowers grown outdoors.