We have been investigating the buoyancy and density of different everyday items through science experiments. Today, we were investigating what would happen if we dropped raisins into soda water. The results were amazing – the raisins were ‘dancing’.

We noticed that the raisins sank at first this was due to their density. However, because raisins have a dented surface and rough texture it means that they are filled with air pockets. These air pockets attracted the carbon dioxide gas in the liquid, creating little bubbles on the raisins. The carbon dioxide increases the volume of each raisin; therefore, the density of the raisins was lowered…

Can you guess what happened next?