system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does pouring water on grease fire increase the amount of flames?

I've always wondered why water; something that is used to put out fires increase the fire flames when added into grease fire.
gpt
Grease is an oil, it's a liquid at burning temperatures.

Oil and water don't mix, so when you squirt water on grease you get balls of water in oil and vice versa.  The balls of water in oil are a big problem.  The oil is over 212˚F (100˚C) so the water boils into steam.  The steam expands, spreading the oil into a big, thin sheet, before it pops.  Now you have a big, thin sheet of burning oil and the pop sends it flying through the air.  Super-bad.