What is in the Bubbles When Water Boils?

Most recent answer: 04/15/2015

Q:
what is in the bubbles when water boils?
- Milly (age 8)
California
A:

Great question! Inside the bubble there are just water molecules. They're just like the molecules in the liquid but they're not touching each other. They're all spread out with big spaces. That's called a "gas" or "vapor".

Mike W.

p.s. Here's an old answer that migt help: 


(published on 04/15/2015)