Here's why:

* Electric Charges and Fields: Electric charges create electric fields around them.

* Vibrating Charge: When a charge vibrates, its electric field changes in a rhythmic way.

* Changing Electric Field: A changing electric field creates a changing magnetic field.

* Changing Magnetic Field: A changing magnetic field creates a changing electric field.

* Self-Propagating: This interplay between electric and magnetic fields creates a self-propagating wave that travels at the speed of light. This is what we call an electromagnetic wave.

Examples of Electromagnetic Waves:

* Radio Waves: Used for communication.

* Microwaves: Used for heating food and communication.

* Infrared Radiation: Felt as heat.

* Visible Light: What we see.

* Ultraviolet Radiation: Can cause sunburns.

* X-rays: Used in medical imaging.

* Gamma rays: Highly energetic radiation.