Back to Show
Physics Girl
How to Make a Cloud in Your Mouth
Season 1
Episode 2
Learn how to make a wispy cloud come out of your mouth, even when it’s not cold out. Like any awesome trick, physics is to thank for the mouth cloud. This simple and fun demonstration can be used to explain the cloud in a bottle experiment, and real clouds in the sky.
Sign up now for inspiring and thought-provoking media delivered straight to your inbox.
Support Provided By

6:52
Using a ShakeWeight, how long would it take to power a house for a day?

8:16
Polarized light is an unusual form of light. Can humans see when light is polarized?

9:20
If you sing at a wine glass at its exact resonant frequency, you can break the glass!

7:02
See ferrofluid falling on a magnet filmed at 1000fps.

8:27
Ultrasonic levitation AT HOME! Learn how an acoustic levitator works and how to make one.

8:59
I left a physics job to do software engineering. What do software engineers actually do?

6:23
Which tank will fill first? Dianna and Simone Giertz use a physical test to find out.

6:34
Bubbling air through sand can cause it to act like a liquid.

7:47
Can you solve the bottle riddle and the magnet riddle?

10:46
Dianna discusses studying physics and doing physics research before shifting her career.

6:09
Using a box with a candle and GoPro inside, Physics Girl tests a candle in free-fall.

6:03
These short, simple life hacks are based on physics.