1. Light Travels in Straight Lines: Light from the sun travels in straight lines.
2. Opaque Objects Block Light: When an object (like a tree or a person) gets in the way of the sunlight, it blocks the light from passing through it.
3. The Area Behind the Object is Dark: The area behind the object, where the light is blocked, becomes dark. This darkness is called a shadow.
Think of it like this: Imagine shining a flashlight at a wall. The area the light hits is bright, but the area behind the flashlight is dark. The flashlight is like the sun, and the wall is like the object creating the shadow.
Factors Affecting Shadows:
* Position of the Sun: The higher the sun in the sky, the shorter the shadow. This is because the light hits the object at a more direct angle. The lower the sun in the sky, the longer the shadow.
* Size of the Object: Larger objects cast larger shadows.
* Shape of the Object: The shape of the object affects the shape of the shadow.
* Time of Day: The position of the sun changes throughout the day, which means the length and direction of shadows also change.
Let me know if you have any more questions!
