Part A When the following liquids are poured into the same container, they separate as shown in the image. Based on the data
in the table below, what caused the order of the layers?
rubbing alcohol
vegetable oil
water
corn syrup
Liquid
corn syrup
Volume Used
95 cm
90 cm
water
Mass
130.158
90.00 g
77.358
81.90 g
Density
1.37 g/cm
1 g/cm
0.91 g/cm
0.78 g/cm
85 cm
vegetable oil
rubbing alcohol
105 cm

The layers are formed due to difference of density of solutions.

The main cause of the order of the layers is the difference of weight and density of different liquids in the container. The liquids that has more weight means higher density will sink below the liquids that has less weight means lower density so due to difference in  their density corn syrup is located at the bottom due to higher density and rubbing alcohol is present at the top of the container due to lower density.

What caused the order of the layers can be attributed to the densities of the liquids.

In order words, immiscible liquids poured together in the same container will separate out according to their densities - starting with the highest density liquid occupying the bottom with the lowest density liquid staying topmost.

More about density can be found here:

you're crazy : )