Explore density polarity and the science behind effervescence with the Discovery glowing bubble light simply fill the provided container with water and household oil not included and then drop in a tablet. Watch as the tablet breaks apart upon immersion and releases carbon dioxide into the solution. The carbon dioxide that is released will cause the oil to form into bubbles that bounce up and down as the oil is less dense than the water. Hypothesize test and observe how different temperatures or the amount of carbon tablets effect the movement and action within the container. Children will love this interactive hands on experiment recommended for ages 12 years and up.