## Item AM052003: When an iron frying pan cools, the distance between the iron atoms decreases, so the pan gets a tiny bit smaller.

A cook takes a hot iron frying pan off the stove to cool. What happens as the iron pan cools?

- The mass of the iron atoms increases, so the pan gets a tiny bit heavier.
- The mass of the iron atoms does not change, so the pan remains the same.
- The distance between the iron atoms decreases, so the pan gets a tiny bit smaller.
- The distance between the iron atoms does not change, so the pan remains the same.