The density of corn oil is 0.93 grams per cubic centimeter. Corn oil is less dense than liquid water, which has a density of 1 gram per cubic centimeter. Therefore, corn oil floats on water.
Density is the amount of mass that is contained in a specific volume of a substance. The formula for finding density is mass of the substance divided by its volume. Knowing the density of an object can help predict whether it floats or sinks in water. Anything that has a lower density than water floats, while anything that has a higher density than water sinks. For example, ice has a density of 0.9 grams per cubic centimeter, so it floats on water. Plastic has a slightly higher density than water (1.2 grams per cubic centimeter), so it sinks in water.