DIY Amazing Density Tower from Things Found in Your Kitchen by stevespanglerscience: Make objects float in the middle of a liquid with this amazing trick. The idea is cool, but you need a tall glass (a vase?) and lots of each liquid to make it look good.
Fun Science Experiment: Pour whole milk + red bull - let sit 5 minutes. The acid in the red bull will cause the protein in the milk to separate - liquid changing to solid! New Science Experiment to try!