A pound of sodium metal in the river This is what happens when a pound of sodium hits water. Facebook Prev Article Next Article Experiments Checkout these cool gadgets... Related Posts The Leidenfrost Effect – Maze Two Vortex Rings Colliding Think You’re Tough? Try This Feat of Strength! What If Everyone On Earth Jumped At The Same Time? NASA Examines How Water Reacts Under Meteor Impact Your Cereals React to Magnets, Get Over It