This immense, curved spectrum of beautiful light appears only when both the elements of sunshine and rainfall present. As the sunlight enters the falling raindrops, it breaks up into its true colors of red, orange, yellow, blue, and violet. (These colors are always arranged according to their wavelengths, with red being at one end of the spectrum, and violet at the other). Once inside the droplet, the particles of colored light bounce from side to side, reflect off of the far side of the droplet, exit the droplet, and reassemble, according to their wavelengths, to form a rainbow. How magical!!!