lights

Light is a form of energy made up of tiny particles called photons, which travel in waves. These waves have different lengths, known as wavelengths, that determine the color we see. Light can behave both as a wave and as particles, depending on how we observe it. It moves incredibly fast—about 186,282 miles per second. Light allows us to see our surroundings and plays a key role in processes like photosynthesis. It can be visible, like sunlight or bulbs, or invisible, like ultraviolet or infrared. Overall, light is essential for vision and influences many natural and technological systems.