Suz:what's inside of people?
Me: blood and bones and muscles.
Suz: is blood a liquid or a solid?
Me: liquid, like juice.
Suz: what's a solid?
Me: Um, bones.
Suz: and what's a gas?
Me: Your breath.
Suz: or a fart...and wolves have blood juice inside of them.
I should note that the source of the gas/liquid/solid ideas come from They Might Be Giants, Here Comes Science