The oil is buried very deep below the earth's surface. Some oil has risen closer to the surface. One theory why this has happened is that water pushed the oil upward.
Water is denser than oil.
Therefore, oil will float on top of the water. As the water finds its way to the surface, the oil floating on top of the water, comes to. In this investigation, you will investigate the differences in density of various substances. Add several drops of green food coloring to the water. Add several drops of red food coloring to the Karo syrup.