What happens when you put a flame to a water-filled balloon? How do elephants hear? And what happens to entire countries during earth-shattering tectonic plate movements? Find out as Head Rush host Kari Byron asks these and other fascinating questions.

Discover the awesome strength of salt as Head Rush's Kari Byron pushes crystals to the limit. Find out why the Archer fish is nature's dead shot, why methane is a greenhouse gas and how you can survive a thousand degree flame.