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Materials |
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-Large bottle diet coke
- Half pack of Mentos - Paper - Card |
Procedure1) Rip a small piece from the paper. Use the paper remaining to create a funnel.
2) Place a card at the bottom of the funnel to hold the Mentos. 3) Remove the card and let the Mentos drop inside the bottle. 4) Run away and watch it explode! |
Scientific TheoryCoke is fizzy due to the carbon dioxide that is added to the drink; there was a lot of carbon dioxide because it only gets released when you pour it into a glass or when you just open the bottle. After the Mentos were dropped, it quickened up the process by breaking the surface tension of the liquid and allowed bubbles to form on the Mentos. These Mentos contain many tiny dimples, which allow many bubbles to appear on its surface and then bonds between the carbon dioxide gas and water together to easily break, creating the eruption. The reason diet coke is used in comparison to other soda drinks is because it is less sticky than other sodas and it is more effective when it is recently because there is more fizz inside.
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