👉 Rainbows are a natural phenomenon that occur when light is reflected off of water. When sunlight passes through water, it creates an intricate pattern of colors on the surface of the water. The light reflects off of the water molecules and then falls back down to the ground as a rainbow. The color of a rainbow depends on the angle of incidence and the refractive index of the water. As the light travels from the sun through the water, it is bent by the water's surface molecules, causing