What Makes a Shadow Appear?

Imagine you're playing with a flashlight and your hand. When the light hits your hand, it blocks some of the light from reaching the wall, and that's how shadows are made! A shadow appears because something is in between the light source and where the light goes. If there’s no light, there can’t be a shadow.

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Examples

  1. When a tree blocks the sun, it casts a shadow on the ground.
  2. A person walking in front of a lamp creates a moving shadow on the wall.
  3. Your hand blocks the light from your flashlight and makes a shape on the table.

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