Mystery #3Tier 2–3states / gases
Why does dry ice make fog?
Drop a lump of "dry ice" into water and it erupts with thick white fog, like a witch's cauldron — yet it never melts into a puddle the way normal ice does. What is dry ice, and where is all that fog coming from?
Your guess
What do you reckon dry ice is, and why does it make fog instead of a puddle?
Make a guess to unlock the hints and the answer.