Ice is less dense than water, which allows it to float on liquid water. Why does this happen? A. Because the ice molecules are spaced closer together
B. Because the ice molecules are spaced further apart
C. Because the liquid water molecules are arranged in the shape of a pentagon
D. Because the liquid water molecules are arranged against their polarity

Astudent wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. to test this hypothesis, the student put the same amount of grass seed in 3 containers with the same type of soil. the student measured the growth at the end of the week. all plants received equal amounts of water and sunlight. if you were asked to graph this data, what would you place on the x-axis? a. fertilizer b. water c. plant growth d. week one