To make a cloud in your mouth — yes, this is a very cool trick that actually works with practice — you’ll need to make tiny water droplets in your mouth. Then up the pressure. Physics Girl Dianna Cowern demonstrates both steps in this How to Make a Cloud in Your Mouth video.

And after you’ve watched that, here’s that Bearded Science Guy Instant Cloud in a Bottle video that she features.

Watch these next: Kari Byron makes a cloud in a bottle, which includes a slightly easier version of the experiment, how to build your own particle detector, and how to identify clouds.

via @aatishb.

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