Candy Chemistry Experiments - The LabFloat or Sink Candy Bars Ivory is the soap that floats. But what about your favorite candy bar? Choose a few of your favorites, fill up a bowl or a small demo tank with water, remove the wrappers and drop them in. We used Snickers, Three Musketeers, Hershey's Chocolate and Kit Kat bars. The Hershey's and Snickers bars sunk like rocks to the bottom, while the Kit Kat and Three Musketeers floated at the top.