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 Spinning Magnet Levitates What Happens When Lava Meets Ice? What happens if you fill a Balloon with Liquid Nitrogen? Rubber Bands VS Watermelon Making Ice By Boiling Water – Wait…WhaT? Can You Stand On Liquid Mercury?