This science teacher based in Terrigal, Australia, used Diet Coca-Cola and Mentos to demonstrate that gas has mass.

The experiment starts by Jacob Strickling tipping two Mentos into the beaker of fizzy drink that is set up on a weighing scale.

As the mints are tipped in, the drink instantly begins fizzing causing the weight on the scales to gradually decrease.

Strickling told Newsflare: "Carbon dioxide which is dissolved in the Coke, nucleates on the surface of the Mentos, causing it to come out of solution and turning into gas.

"This invisible carbon dioxide gas then flows out of the beaker and the weight shown on the scales slowly gets smaller and smaller.

"Eventually, once the Coke has gone flat the scales read 332.50 grams indicating that 0.5 grams of carbon dioxide has been lost to the atmosphere."

Did you know that gas has mass! Gas actually weighs something! In this Science experiment a beaker is mostly filled with Diet Coca-Cola. Two Mentos are sitting on the lip of the beaker ready to be tipped in.
The total initial mass of the beaker, Coke and Mentos is 333.00 grams.
The Mentos are then pushed in and one would think the weight shown on the scales would stay the same.
But no! Carbon Dioxide which is dissolved in the Coke, nucleates on the surface of the Mentos, causing it to come out of solution and turning into gas. This invisible Carbon Dioxide gas then flows out of the beaker and the weight shown on the scales slowly gets smaller and smaller. Eventually, once the Coke has gone 'flat' the scales read 332.50 grams indicating that 0.5 grams of Carbon Dioxide has been lost to the atmosphere.
Filmed by Jacob Strickling who has YouTube Channel 'Make Science Fun'