Light and shadow are fundamental aspects of how we perceive the world around us. Light is a form of energy that travels in waves and allows us to see objects. It can come from natural sources like the Sun or artificial sources like light bulbs. When light hits an object, it can be absorbed, reflected, or transmitted, creating different colors and brightness levels. Shadow is created when an object blocks the path of light. The area behind the object, where light cannot reach, becomes darker, forming a shadow. The size and shape of a shadow depend on the light source's position and the object's shape. Shadows can help us understand the form and depth of objects in our environment.