Question

material | density (g/cm³)
aluminum | 1.7
benzene | 0.9
magnesium | 1.7
water | 1
iron | 7.8

if all of these substances were placed together in the same container, which would end up on the bottom?

options: aluminum, iron, benzene, magnesium

Explanation:

To determine which substance ends up at the bottom, we compare their densities. A substance with a higher density will sink below those with lower densities. The densities are: Aluminum (2.7), Benzene (0.9), Magnesium (1.7), Water (1), and Iron (7.8). Iron has the highest density among them, so it will be at the bottom.

Answer:

Iron