Why does steam travel up instead of down?

It seems like water always falls down. Rain and snow fall 

on plants. Waterfalls – well, the water falls 

. Why is that? We asked aerospace engineer Nicole Sharp to help us find the answer.

It seems like water always falls down. Rain and snow fall down from the sky. Watering cans pour water down on plants. Waterfalls – well, the water falls down! But when water is steam, it rises up. Why is that? We asked aerospace engineer Nicole Sharp to help us find the answer.
Got a question that’s weighing you down? Send it to us at BrainsOn.org/contact, and we’ll help find what’s up.   

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Smash Boom Best is a debate show for kids and families from the makers of the award-winning podcast, Brains On! Every episode takes two cool things, smashes them together and lets you decide which is best.


Smash Boom Best

A history show for the whole family! Every episode explores the origin of just one thing — like sandwiches, video games, clocks and more — while teaching listeners to think critically about history.


Forever Ago

Our mission is to encourage kids’ and curious adults’ natural curiosity and wonder using science and history…but there’s no age limit on curiosity, and episodes of Brains On can be enjoyed by anyone.


Why does steam travel up instead of down?

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