What sort of lollies other than Mentos reacts with Coco-Cola?

It's not actually the lollies themselves that react with Coca-Cola to create the geyser effect, but the sugar they contain.

Here's why:

* Sugar and Carbon Dioxide: Coca-Cola is carbonated, meaning it contains dissolved carbon dioxide gas. When sugar dissolves, it creates a nucleation site where the gas molecules can gather and escape the solution.

* Mentos and Surface Area: Mentos have a rough, uneven surface, providing even more nucleation sites. This, combined with the high sugar content, causes a rapid release of CO2, creating the geyser.

Therefore, any lollies with high sugar content and a rough surface will likely react with Coca-Cola to some degree.

Here are some examples:

* Other mint candies: Like Tic Tacs or Altoids.

* Hard candies: Like Jolly Ranchers or Skittles.

* Gummy candies: While they don't have the same surface area as Mentos, they still contain a lot of sugar.

Important Note: While fun, this experiment should be conducted with caution. The reaction can be messy and the large amount of sugar can be harmful to teeth.