From the brains behind brains on, this is the moment of on. Moment of Um, um, um, come come to you from APM Studios. I'm Ruby Guthrie.

Oh, hey, what am I up to? Well, I'm just staring at this pot of water, waiting for it to boil.

No, it's not a variation of my normal Tuesday activity watching paint dry.

I mean, I'm literally making spaghetti and I need this water to boil ASAP.

It's getting there. You can already see the water starting to steam. Man, it's like I'm at the

spa. Mmm, spaghetti steam bath with a side of marinera massage.

Ooh, and a focasha face mask?

Oh, sorry, I'm having a real stream of consciousness moment here, or should I say steam of consciousness,

because my thoughts are wafting up like all this steam from my pasta pot.

Hey, now that I think about it, why does steam travel up? I feel like water almost always

travels down, not up. Think about it. rain falls down.

Snow falls down.

When I filled this pot with water from the sink,

it traveled down from the tap and into the pot.

But now that the water is finally boiling, the steam travels up.

Hmm, what's up with that?

Ty and Ellie were wondering about this too.

Hi, my name is Ty. And I'm and Ellie and we're from Salt Lake City Utah. Our question is if

steam is just tiny droplets of water in the air and water moves down when poured out

shouldn't steam travel down too? So why does steam travel up rather than down?

So steam rises instead of falls because it's lighter than the air surrounding it,

whereas water is heavier.

...