• Question: How do fizzy drinks have bubbles in them?

    Asked by Anon to Andrew, Becky, Daniel, Helen, Nicola, Urslaan on 11 Jun 2018.
    • Photo: Daniel Marsh

      Daniel Marsh answered on 11 Jun 2018:

      Fizzy drinks are ‘carbonated’, they have carbon dioxide dissolved in the liquid under pressure and are then sealed in a container. The liquid is at a higher pressure than the air outside and that’s why you get a ‘hiss’ when you open then

    • Photo: Urslaan Chohan

      Urslaan Chohan answered on 11 Jun 2018:

      Good question! Fizzy drinks have a gas called carbon dioxide blown into them. Now a bit like when you blow into soap bubbles, the bubbles form inside the liquid – filled with the carbon dioxide gas that was blown into the liquid in the first place!

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