Mystery #4Tier 2gases / states
Why does a fizzy drink go flat?
A freshly opened fizzy drink is alive with bubbles, but leave it out for a few hours and it turns into dull, flat sugar-water. Nothing was added or spilled. So where did all the fizz go?
Your guess
What's your hunch about where the bubbles go when a fizzy drink goes flat?
There's no single magic word to type, have a go in your own words, then reveal the answer to see how close you got.
Make a guess to unlock the hints and the answer.