This image shows a colored ice cube melting into warm water. Because the blue-dyed ice is colder than the surrounding warm water, its density is also higher, causing the freshly melted ice water to sink toward the bottom of the tank. The currents in the water caused by dropping the ice cube into the tank cause the blue streams to mix around, which creates a cool jellyfish-looking shape.
Photo By: Greg Kornguth
Camera: Canon EOS Rebel T2i