Uploaded February 2024 | Updated September 2026, 3 weeks ago

---

Bubbling air through sand can cause it to act like a liquid. Dianna Cowern and William Osman try to reproduce this popular GIF on Physics Girl. Sand liquefied!

Support Dianna during her recovery at patreon.com/physicsgirl

The glass beads used in place of beach sand were called "Multipurpose abrasive blasting media, Glass Beads." We bought 60-120 and 70-140 Mesh Size and ended up using the larger diameter beads.

physicsgirl.org
twitter.com/thephysicsgirl
facebook.com/thephysicsgirl
instagram.com/thephysicsgirl

Creator: Dianna Cowern
Editing: Jabril Ashe
Animations: Kyle Norby

Thanks to William, John, and Kyle Kitzmiller