- Slides: 7
Diet Coke Fountain
Diet Coke Fountain The diet coke has carbon dioxide forced into it when it is made at the factory. The carbon dioxide molecules are held in a suspension where the coke particles surround them in a grid, holding them and stopping them coming together to form carbon dioxide gas bubbles.
What Is Happening Mint Introducing a Mentos mints introduces surface imperfections that the trapped carbon dioxide latches on to. The carbon dioxide now forms bubbles that rise very quickly through the Coke. They take a lot of the coke with them.
How This Looks What happens when you drop a full packet of mints into a two litre bottle of diet coke?
What You Have To Do The secret to producing an impressive fountain is getting as many mints into the diet coke as quickly as possible and stopping them clumping together at the bottom of the bottle. But you need to be able to do this from a safe distance so you don’t get covered in diet coke. Your task is to design and make a system that will do this then use your system to set off a diet coke fountain.
How Could You Design Your System Divide it up into a number of bits, for example A way of stopping the mints forming a lump at the bottom of the bottle. A way of putting the mints into the bottle quickly. Bring all these bits together into one system A way of activating the device from a distance.
If you have succeeded with the first fountain now try adding holes to the bottle above the top of the diet coke and see what happens.