So cool! Julie Wille came back to finish the experiment. We poured vegetable oil in first. Then we poured baby oil in. The baby oil floated on top meaning it's lighter. Then we gently put an ice cube into the mix. At first the ice cube was suspended in the middle, but as it started to melt the water sank to the bottom. So water is the heaviest, then vegetable oil, then ice, and finally baby oil is the lightest. It was crazy!