Tuesday, February 13, 2018

Dancing conversation hearts

The rough surface of a conversation heart provides perfect places for bubbles to form (nucleation sites). When the heart is dropped in club soda, the carbon dioxide dissolved in the water forms bubbles that make the hearts rise. At the surface, some of the bubbles pop or get shaken off, making the hearts sink again.



Try this with Brach's hearts in club soda, or Necco conversation hearts in Sprite.